WEBVTT

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<v Speaker 1>Imagine standing on a sheer, jagged ridge of rock. You

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<v Speaker 1>are like sixteen hundred feet in the air. Right, you

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<v Speaker 1>look to your left and there is this terrifying vertical

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<v Speaker 1>drop straight down into a river valley.

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<v Speaker 2>And if you look to your right, it's well, it's

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<v Speaker 2>it's another sheer.

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<v Speaker 1>Drop exactly, and swirling all around you is this thick,

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<v Speaker 1>blinding white miss.

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<v Speaker 2>Their lungs are just burning because the air is so

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<v Speaker 2>thin up there.

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<v Speaker 1>Yeah, and the humidity of the jungle is completely suffocating. Now,

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<v Speaker 1>imagine someone hands you a piece of granite that weighs

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<v Speaker 1>like twenty tons, a literal boulder, right, and they tell

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<v Speaker 1>you to carve it into a perfect geometric puzzle piece.

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<v Speaker 2>Oh, and you can't use iron tools, and.

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<v Speaker 1>You definitely don't have a wheel to move it, and you.

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<v Speaker 2>Can't use mortar to hold it in place. You basically

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<v Speaker 2>just have to figure it out using the rocks lying

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<v Speaker 2>around on the ground.

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<v Speaker 1>I mean, it sounds like a punishment from ancient mythology,

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<v Speaker 1>you know, pushing the boulder up the hill, only to

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<v Speaker 1>realize the hill is a cliff and you don't even

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<v Speaker 1>have a cart. It totally sounds completely impossible. But that

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<v Speaker 1>scenario isn't a myth, it is a physical reality that

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<v Speaker 1>still stands today. Welcome to the Deep Dive. I'm so

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<v Speaker 1>thrilled you are joining us.

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<v Speaker 2>Yeah, it's great to be here.

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<v Speaker 1>Today's mission is to unpack a five hundred year old

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<v Speaker 1>riddle hidden high up in the Peruvian Andes. We are,

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<v Speaker 1>of course talking about Machu.

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<v Speaker 2>Picha, such an incredible topic and our road.

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<v Speaker 1>Map for this exploration is the incredibly detailed transcript from

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<v Speaker 1>the comprehensive History Channel documentary Mysteries of Machu Picchu Revealed.

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<v Speaker 2>It is a really remarkable piece of source material. We

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<v Speaker 2>have a mountain of information to unpack today, literally and figuratively.

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<v Speaker 1>Absolutely, the mission for us and for you listening right

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<v Speaker 1>now is to strip away centuries of accumulated myth. We

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<v Speaker 1>are going to tear down those romanticized Hollywood style adventurer.

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<v Speaker 2>Tales right the Indiana Jones stuff exactly.

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<v Speaker 1>We want to reveal the true identity, the actual purpose,

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<v Speaker 1>and the sheer engineering genius behind this lost city of Stone. So,

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<v Speaker 1>if you are the kind of person who loves connecting

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<v Speaker 1>ancient mysteries to modern SCIGNCE forensics, while this deep dive

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<v Speaker 1>is custom built for you, because.

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<v Speaker 2>Sometimes the real history is far, far more fascinating than

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<v Speaker 2>the legend.

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<v Speaker 1>Oh totally.

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<v Speaker 2>And you know, the most intriguing part of this documentary

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<v Speaker 2>transcript isn't merely the visual spectacle of what the Inca built.

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<v Speaker 2>I mean, we all know they built a beautiful city

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<v Speaker 2>in the clouds.

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<v Speaker 1>Right, we have all seen the postcard photos exactly.

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<v Speaker 2>The real narrative tension comes from observing how modern science

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<v Speaker 2>had to painstakingly dismantle eighty years of deeply flawed historical

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<v Speaker 2>assumptions to finally understand the why of Machu Picchu it is.

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<v Speaker 2>It's really a story of forensic correction.

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<v Speaker 1>Let's jump right into the sheer impossibility of this place.

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<v Speaker 1>We are talking about an entire city made of stone,

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<v Speaker 1>perched on a precipice. It just defies gravity.

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<v Speaker 2>It completely defies standard architectural logic.

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<v Speaker 1>And for four hundred years it managed to hide completely

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<v Speaker 1>from the outside world. How does a society without wheels

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<v Speaker 1>or iron manage something of this magnitude.

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<v Speaker 2>Well, to even begin grasping the mechanics of Machu Pichu,

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<v Speaker 2>we really have to zoom out. We have to look

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<v Speaker 2>at the staggering logistical power of the civilization that built it.

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<v Speaker 1>Okay, set the stage for us.

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<v Speaker 2>So we often hear about the Aztecs in Mexico, but

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<v Speaker 2>the Inca Empire, prior to the arrival of the Spanish,

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<v Speaker 2>was arguably the most powerful, highly structured society in the

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<v Speaker 2>entire New World.

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<v Speaker 1>Wow.

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<v Speaker 2>Yeah. They controlled a territory that stretched from modern day

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<v Speaker 2>Columbia all the way down to Chile.

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<v Speaker 1>That is a massive footprint. I mean thousands of miles

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<v Speaker 1>of the most unforgiving terrain on the.

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<v Speaker 2>Plant an absolutely brutal terrain.

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<v Speaker 1>You have the towering Andes Mountains, the arid coastal deserts,

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<v Speaker 1>the dense Amazonian jungles. Managing a population across that geography

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<v Speaker 1>seems like an administrative nightmare today, let alone in the

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<v Speaker 1>fourteen hundred.

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<v Speaker 2>It was an administrative triumph, honestly, and their Golden Age,

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<v Speaker 2>the era of their greatest expansion, really began around fourteen

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<v Speaker 2>thirty eight under a leader named Pachacuti.

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<v Speaker 1>The source material calls Pachacuti a brilliant warrior and leader.

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<v Speaker 1>He wasn't just a king, right.

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<v Speaker 2>No, far more than that. He centralized control over religion, art,

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<v Speaker 2>and government. He was the ultimate architect of the empire.

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<v Speaker 1>So he was a revolutionary builder exactly.

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<v Speaker 2>Batchkuti initiated massive construction projects across the continent, whole cities, sprawling,

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<v Speaker 2>agricultural estates, grand temples. But the true backbone of his

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<v Speaker 2>power was an infrastructure network that is just difficult to comprehend.

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<v Speaker 2>What kind of infrastructure the INCA engineered and maintained roughly

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<v Speaker 2>fourteen thousand miles of paved roads.

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<v Speaker 1>Wait, I need to pause on the mechanics of that

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<v Speaker 1>fourteen thousand miles of roads through the Andes Mountain yep.

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<v Speaker 2>Fourteen thousand miles.

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<v Speaker 1>And again, this is a society without the wheel. They

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<v Speaker 1>aren't driving carts, they aren't pulling wagons. What is the

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<v Speaker 1>physical mechanism of using fourteen thousand miles of mountain highways

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<v Speaker 1>if you don't have wheels?

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<v Speaker 2>Well, Kenneth Wright, who is a civil engineering expert in

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<v Speaker 2>the documentary, he really sheds light on this. Those words

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<v Speaker 2>weren't designed for leisurely travel or wheeled carts.

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<v Speaker 1>What were they for them?

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<v Speaker 2>They were resigned for the rapid projection of state power.

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<v Speaker 2>The network was built with a system of relay stations

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<v Speaker 2>called tampus, spaced about a day's walk apart, and they

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<v Speaker 2>had this messenger system of runners, the Chaskes, who could

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<v Speaker 2>transmit information across the empire at incredible speeds. But more importantly,

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<v Speaker 2>the roads were wide and stable enough to rapidly move

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<v Speaker 2>massive groups of troops from one sector of the empire

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<v Speaker 2>to another.

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<v Speaker 1>Oh wow, So it's basically the ultimate flex of administrative muscle. Precisely,

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<v Speaker 1>it's the emperor saying, I can march an army to

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<v Speaker 1>your doorstep across a mountain range before you even have

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<v Speaker 1>time to organize a defense.

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<v Speaker 2>It was a highly centralized government controlling a vast, highly

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<v Speaker 2>diverse population through sheer logistical securiority. By standardizing the road network,

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<v Speaker 2>Pachacuti essentially shrank the geography of the Andes. It was

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<v Speaker 2>an empire operating at the absolute peak of its capacity.

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<v Speaker 1>And then we hit the year fifteen thirty two. Enter

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<v Speaker 1>Francisco Bizar, the turning point. A Spanish conquistador lands in

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<v Speaker 1>Peru with just one hundred and eighty.

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<v Speaker 2>Men, tiny, tiny fraction of a force compared to the

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<v Speaker 2>Inca armies.

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<v Speaker 1>That's what I find so jarring, one hundred and eighty

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<v Speaker 1>guys against an empire that spans a continent. How does

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<v Speaker 1>a tiny band of foreigners even register as a legitimate

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<v Speaker 1>threat to a society that can coordinate fourteen thousand miles

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<v Speaker 1>of mountain logistics.

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<v Speaker 2>Pizarro was driven by a hyper focused motivation. He was

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<v Speaker 2>lured by something the Inca possessed, an absolute abundance, and

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<v Speaker 2>this element represents a fundamental, fatal clash of values between

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<v Speaker 2>the two cultures.

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<v Speaker 1>You're talking about gold, gold. The documentary highlights this profound misunderstanding.

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<v Speaker 1>So beautifully. To the Inca, gold had zero economic value.

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<v Speaker 2>Right correct, none whatsoever.

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<v Speaker 1>It was entirely sacred. They believed it represented their principal

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<v Speaker 1>God into the sun. They literally called gold the sweat

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<v Speaker 1>of the sun.

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<v Speaker 2>It was purely a spiritual material. They crafted ceremonial knives

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<v Speaker 2>from it, beautiful masks, and they even sheeted the walls

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<v Speaker 2>of their main temples in brilliant solid gold.

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<v Speaker 1>While the Inca saw the spiritual manifestation of their day,

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<v Speaker 1>the Spanish saw cold, hard currency.

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<v Speaker 2>Exactly, they saw a vast, unimaginable wealth, political power back

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<v Speaker 2>in Europe, and basically the entire justification for crossing a

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<v Speaker 2>deadly ocean.

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<v Speaker 1>It's a complete disconnect, this.

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<v Speaker 2>Complete disconnect in how these two cultures valued a yellow

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<v Speaker 2>metal sealed the fate of the Inca Empire. Pizarro hears

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<v Speaker 2>stories of the Incan emperor Ottawalpa eating from golden plates

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<v Speaker 2>and drinking from golden goblets, and he immediately sets out

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<v Speaker 2>to intercept him.

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<v Speaker 1>And he finds Ottawalpa at a town called Kaja Marca,

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<v Speaker 1>which is about three hundred and fifty miles inland from

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<v Speaker 1>where Pizarro landed. Ottawaalpa is camped there with a massive army,

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<v Speaker 1>and the confrontation that follows is just a masterclass in

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<v Speaker 1>brutal deception.

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<v Speaker 2>In November fifteen thirty two, Pizarro extends an invitation to

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<v Speaker 2>Ottawalpa for a feast in his.

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<v Speaker 1>Honor, and the emperor just goes.

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<v Speaker 2>The Emperor, perhaps curious about these strange men and completely

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<v Speaker 2>confident in the size of his own forces, agrees. He

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<v Speaker 2>arrives in the town square with his Royal entrae entirely.

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<v Speaker 1>Unarmed, unarmed oh man Yeah.

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<v Speaker 2>Expecting a diplomatic or ceremonial meeting.

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<v Speaker 1>He walks right into a confined courtyard. It's a literal

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<v Speaker 1>kill box.

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<v Speaker 2>It was. The Spaniards had hidden themselves in the buildings

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<v Speaker 2>surrounding the square. At a signal. They sprang the trap

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<v Speaker 2>just an absolute ambush. They unleashed rudimentary firearms horses which

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<v Speaker 2>the Inca had never seen before and found absolutely terrifying,

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<v Speaker 2>and steal swords. They slaughtered the unarmed attendants and captured

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<v Speaker 2>the emperor alive.

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<v Speaker 1>Think about the psychological shock for Atahuapa. He is a

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<v Speaker 1>god king. His feet aren't even supposed touch the ground, right,

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<v Speaker 1>and suddenly he is locked in a room by these

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<v Speaker 1>violent aliens. But he quickly assesses his captors and realizes

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<v Speaker 1>exactly what they want he does.

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<v Speaker 2>He offers Pizarro a ransom for his life.

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<v Speaker 1>And the documentary describes a staggering visual here at Ahuapa

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<v Speaker 1>promises to fill the room. He is imprisoned in a

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<v Speaker 1>room roughly twenty two feet by seventeen feet with gold.

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<v Speaker 2>Up to a line as high as he can reach.

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<v Speaker 1>Yeah, and he promises to fill two smaller rooms with summer.

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<v Speaker 2>It is an offer that simply did not compute in

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<v Speaker 2>the European mind. The sheer volume of precious metal he

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<v Speaker 2>was proposing was just unfathorable.

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<v Speaker 1>I tried to put this into a modern perspective. It's

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<v Speaker 1>like a tech billionaire being taken hostage and the bias freedom.

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<v Speaker 1>He tells his kidnappers, I will literally empty Fort Knox

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<v Speaker 1>for you, every gold bar, every coin. I will have

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<v Speaker 1>it delivered to this warehouse.

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<v Speaker 2>That's a great analogy.

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<v Speaker 1>And the crazy thing is the Inca actually deliver the

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<v Speaker 1>gold pours in from their capital, Cusco and from temples

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<v Speaker 1>across the empire. Porters carried over those fourteen thousand miles

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<v Speaker 1>of roads. Atawaalpa literally fulfills the ransom.

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<v Speaker 2>But the tragedy of the conquest is that no amount

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<v Speaker 2>of gold could quench the Spaniard's thirst or secure the

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<v Speaker 2>emperor's safety.

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<v Speaker 1>Of course not.

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<v Speaker 2>Pizarro recognized that as long as Adawalpa lived, he was

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<v Speaker 2>a rallying point for a massive, organized resistance. So despite

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<v Speaker 2>the rooms being filled, Pizarro arranged a mock trial and

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<v Speaker 2>executed Adawalpa.

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<v Speaker 1>And then a full scale, bl bloody war erupted.

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<v Speaker 2>Exactly.

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<v Speaker 1>I always struggle with this part of the history. Sitting

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<v Speaker 1>here centuries later. It's so easy to look back and think,

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<v Speaker 1>how could the Inca be so naive? Why walk into

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<v Speaker 1>that courtyard, Why trust them enough to pay the ransom.

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<v Speaker 2>It's a common reaction, but I have.

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<v Speaker 1>To imagine this was just an unprecedented scenario for them.

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<v Speaker 1>How could they possibly anticipate Pizarro's tactics when the very

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<v Speaker 1>concept of warfare and diplomacy was so radically different.

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<v Speaker 2>That is the essential context. We cannot project modern globalized

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<v Speaker 2>cynicism onto a sixteenth century indigenous empire encountering Europeans for

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<v Speaker 2>the very first time. The Spanish operated entirely outside the

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<v Speaker 2>Inca paradigm of honorable warfare. But it is vital to

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<v Speaker 2>understand that Pizarro's deceit and steal swords were really only

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<v Speaker 2>a fraction of the devastating force that toppled the empire.

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<v Speaker 2>The logistics of the collapse point to a perfect storm.

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<v Speaker 2>What do you mean the invisible weapons were the true conqueror?

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<v Speaker 1>I mean the diseases.

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<v Speaker 2>Yes, the source material makes it clear that the Inca

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<v Speaker 2>were all reeling from a bitter internal civil war just

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<v Speaker 2>before Bizarro arrived. But the final crushing blow was a

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<v Speaker 2>massive smallpox epidemic. Oh wow, the Spanish inadvertently introduced a

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<v Speaker 2>virus to a population with zero inherited immunity. The mechanics

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<v Speaker 2>of a virgin soil epidemic are just horrifying.

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<v Speaker 1>Because it's spread so fast.

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<v Speaker 2>The disease swept through the population via that incredibly efficient

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<v Speaker 2>road network we talked about, traveling way faster than any

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<v Speaker 2>army could march. It decimated the military, the leadership class,

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<v Speaker 2>and the general population.

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<v Speaker 1>It's a really sobering reflection on how fragile massive systems

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<v Speaker 1>actually are. A civilization that dominated the Mighty andes brought

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<v Speaker 1>down not by superior military strategy, but by internal political

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<v Speaker 1>fractures and microscopic viruses.

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<v Speaker 2>It really is.

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<v Speaker 1>The devastation is total. The Spanish systematically destroy the remnants

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<v Speaker 1>of the civilization. They leveled the temples and cusco. They

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<v Speaker 1>melt down all that sacred gold into standardized European ingots,

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<v Speaker 1>and they impose a new religion.

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<v Speaker 2>They systematically dismantled the infrastructure of the Inca state, but

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<v Speaker 2>a faction of surviving royals, led by a figure named Manco,

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<v Speaker 2>managed to retreat deep into the rugged mountains.

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<v Speaker 1>And they established a base right yes.

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<v Speaker 2>They established a hidden rebel capital called Vilcabamba, and from

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<v Speaker 2>there they fought a stubborn guerrilla war against the Spanish

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<v Speaker 2>for decades.

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<v Speaker 1>The Spanish spent years hunting for this rebel base. Eventually

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<v Speaker 1>in fifteen seventy two, they found vil Cabamba, executed the

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<v Speaker 1>last royal inca, and that specific site was abandoned.

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<v Speaker 2>Right that was the end of the resistance.

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<v Speaker 1>But the key takeaway here for you listening is that

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<v Speaker 1>while the Spanish destroyed almost everything, they missed one place

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<v Speaker 1>They never found, Machu.

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<v Speaker 2>Picchu, never even knew it was there.

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<v Speaker 1>And the desperate, centuries long historical search for that lost

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<v Speaker 1>rebel capital of vill Cabamba is the exact catalyst that

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<v Speaker 1>accidentally introduced Machu Picchu to the modern world.

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<v Speaker 2>That historical obsession with finding the quote unquote lost city

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<v Speaker 2>brings us to the year nineteen eleven, directly to the

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<v Speaker 2>doorstep of an American named Hiram Bingham.

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<v Speaker 1>Hiram Bingham is such a fascinating, complicated character. He's an

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<v Speaker 1>American explorer. He's a geography and history lecturer at Yale University.

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<v Speaker 2>Very credentialed.

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<v Speaker 1>But the documentary paints a very specific psychological profile of him.

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<v Speaker 1>He is a man intensely driven by a desire for

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<v Speaker 1>personal fame.

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<v Speaker 2>Oh, the ambition was deeply ingrained. Bingham's father and grandfather

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<v Speaker 2>were both famous, influential missionaries. He grew up under the

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<v Speaker 2>immense weight of their legacy, feeling this crushing pressure to

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<v Speaker 2>achieve his own daring exploits.

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<v Speaker 1>So he had some serious daddy issues driving him.

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<v Speaker 2>You could say that he wanted to carve his name

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<v Speaker 2>into the annals of history, and his chosen vehicle for

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<v Speaker 2>that glory was to be the man who finally discovered Vilcabamba,

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<v Speaker 2>the last refuge of the Inca.

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<v Speaker 1>So, fueled by this ambition, he heads to Peru in

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<v Speaker 1>nineteen eleven. He arrives in Cusco in July, and he

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<v Speaker 1>starts hearing local rumors about ruins near a place called

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<v Speaker 1>Mandor Pompa. Right, he puts together a small expedition and

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<v Speaker 1>heads into the Urubamba cloud forest. We really need to

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<v Speaker 1>establish what a cloud forest actually is because the phrase

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<v Speaker 1>sounds lovely and ethereal, but the physical reality of it

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<v Speaker 1>is brutal.

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<v Speaker 2>Cloud forest is really just a polite term for a wet,

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<v Speaker 2>incredibly dense, nearly impenetrable tropical mountain jungle. We are talking

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<v Speaker 2>about an environment situated at an altitude between three thousand

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<v Speaker 2>and eight thousand feet. The terrain is characterized by steep ravines,

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<v Speaker 2>constant rainfall, thick mud, and extremely aggressive vegetation.

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<v Speaker 1>It is definitely not a casual weekend hike. Richard Berger,

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<v Speaker 1>an anthropologist from Yale featured in the documentary, describes Bingham

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<v Speaker 1>as an incredibly.

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<v Speaker 2>Lucky scholar, which is very accurate.

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<v Speaker 1>Because Bingham didn't hack his way through untouched jungle for months.

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<v Speaker 1>He managed to navigate this dense vegetation primarily because the

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<v Speaker 1>Peruvian government had very recently blasted and cut a new

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<v Speaker 1>trade path deep into the forest to facilitate local commerce.

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<v Speaker 2>Exactly, he was utilizing modern local infrastructure, and while camping

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<v Speaker 2>near a small hot along this new road, Bingham encounters

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<v Speaker 2>a local farmer named.

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<v Speaker 1>Arteaga and what is Artaaga? Tell him?

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<v Speaker 2>Artiaga casually mentions that up on top of the terrifying

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<v Speaker 2>vertical precipice is looming over them, there are some old ruins.

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<v Speaker 1>And Bingham is like, sure, I'll check it out.

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<v Speaker 2>Basically, Bingham, driven by his relentless checklist, figures it probably

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<v Speaker 2>isn't the grand capital of thel Cabamba, but he can't

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<v Speaker 2>pass up documenting a ruin.

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<v Speaker 1>So on the morning of July twenty fourth, nineteen eleven, Bingham,

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<v Speaker 1>his local guide, and a military escort start the climb.

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<v Speaker 2>The famous climb.

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<v Speaker 1>The documentary describes this ascent, and it completely shatters the

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<v Speaker 1>romantic image of the heroic explorer boldly striding into the unknown.

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<v Speaker 1>They are fighting their way up this mountain for more

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<v Speaker 1>than two and a half hours.

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<v Speaker 2>It was grueling.

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<v Speaker 1>The brush is so thick and the slope is so

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<v Speaker 1>steep that they are literally crawling on their hands and knees,

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<v Speaker 1>pulling themselves up by roots. They are exhausted, soaking, wet,

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<v Speaker 1>and covered in mud.

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<v Speaker 2>And when they finally crest the ridge and pull themselves

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<v Speaker 2>over the ledge, the reality the site completely subverts the

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<v Speaker 2>narrative of a pristine, untouched discovery.

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<v Speaker 1>I love this detail more than anything else. In the story,

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<v Speaker 1>Bingham is gasping for air, dreaming of historical glory. He

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<v Speaker 1>looks up and there's just a local family hanging.

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<v Speaker 2>Out that's going about their day.

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<v Speaker 1>Yeah, a family had established a farm up there. They

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<v Speaker 1>were growing crops on the ancient terraces. They look at

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<v Speaker 1>this muddy American and a young boy casually volunteers to

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<v Speaker 1>walk them over to see the old stone houses.

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<v Speaker 2>It forces us to entirely reframe what the word discovery

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<v Speaker 2>means in a historical context. Totally Bigham did not discover

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<v Speaker 2>Machu Picchu in the sense of finding something that no

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<v Speaker 2>human knew existed. Local indigenous people were intimately aware of it.

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<v Speaker 2>They were utilizing the ancient engineering for their daily survival.

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<v Speaker 1>The kid leads him a short distance through the overgrowth,

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<v Speaker 1>and Bingham finds himself standing in what he describes as

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<v Speaker 1>a maze of beautiful granite houses.

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<v Speaker 2>But it was very overgrown.

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<v Speaker 1>Yeah, the jungle has consumed most of it. There are

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<v Speaker 1>trees growing through the roofs, thick moss covering the walls,

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<v Speaker 1>but the sheer scale of the stonework is undeniable. It

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<v Speaker 1>is a massive complex.

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<v Speaker 2>Yet Bigham's immediate reaction to finding one of the greatest

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<v Speaker 2>archaeological sites on the planet is incredibly anti climactic.

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<v Speaker 1>What does he do?

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<v Speaker 2>He takes a few photographs with his camera, He sketches

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<v Speaker 2>out a very rough map, and then he turns around

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00:17:20.359 --> 00:17:24.400
<v Speaker 2>and leaves the very same afternoon. By five pm, he

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<v Speaker 2>is heading back down the muddy trail to his camp.

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<v Speaker 2>Wait what, Yeah, he didn't even bother to bring his

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<v Speaker 2>expedition partners up the mountain the next day to show

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<v Speaker 2>them what he found.

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<v Speaker 1>That makes absolutely no sense to me. If you stumble

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<v Speaker 1>onto a massive, perfectly carved city of granite hidden in

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<v Speaker 1>the clouds, why do you just take a few snaps

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<v Speaker 1>and bounds.

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00:17:40.720 --> 00:17:43.720
<v Speaker 2>It is a textbook example of confirmation.

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<v Speaker 1>Bias because he was looking for something else.

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<v Speaker 2>Precisely, Bingham was singularly obsessed with finding vilc Obamba. In

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<v Speaker 2>his mind, vilc Obamba had a specific set of architectural

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<v Speaker 2>criteria based on old Spanish chronicles, and this didn't match right.

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<v Speaker 2>This overgrown on the ridge didn't neatly fit those preconceived notions,

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<v Speaker 2>so his brain basically categorized it as a minor distraction.

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<v Speaker 2>He was anxious to check the box and keep moving

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<v Speaker 2>toward his actual.

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<v Speaker 1>Goal, so he just moves on.

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<v Speaker 2>He spent the next three months exploring other, frankly much

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<v Speaker 2>less impressive sites in the region. It was only when

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00:18:18.039 --> 00:18:21.119
<v Speaker 2>he returned to the US, developed his photographs and really

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00:18:21.200 --> 00:18:23.799
<v Speaker 2>looked at the monumental scale of the masonry that he

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00:18:23.839 --> 00:18:26.960
<v Speaker 2>realized that cliff side ruins were actually something spectacular.

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<v Speaker 1>Those photographs change his life. He realizes he has to

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<v Speaker 1>figure out what this place was, and.

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<v Speaker 2>He leverages the stunning visuals to secure major funding, most

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<v Speaker 2>notably from the National Geographic.

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<v Speaker 1>Society in nineteen twelve, so less than a year later

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<v Speaker 1>he returns. But this time he's not a guy on

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<v Speaker 1>a day hike. He brings a massive, multidisciplinary team, a

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00:18:46.400 --> 00:18:49.079
<v Speaker 1>real expert, He brings dozens of local laborers to hack

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<v Speaker 1>away the jungle. He brings a geologist, and crucially, he

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<v Speaker 1>brings a bone specialist named George Eaton. They start clearing

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<v Speaker 1>the terraces and excavating the soil, and.

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<v Speaker 2>The excavation yields signific tic It finds they uncover over

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<v Speaker 2>one hundred graves hidden in the rocky overhangs around the city. Okay,

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00:19:05.200 --> 00:19:09.680
<v Speaker 2>they pull out skeletons, elaborate pottery, stone tools, and bronze knives.

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<v Speaker 2>Bingham is desperate for these physical artifacts to tell him

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<v Speaker 2>a story. He needs a compelling, marketable narrative to justify

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00:19:17.240 --> 00:19:19.400
<v Speaker 2>the funding and solidify his newfound fame.

397
00:19:19.680 --> 00:19:22.240
<v Speaker 1>And this is where the limitations of early twentieth century

398
00:19:22.279 --> 00:19:25.359
<v Speaker 1>field science really lead the entire expedition astray.

399
00:19:25.559 --> 00:19:30.640
<v Speaker 2>Absolutely. The team's osteologist, George Eaton, examines the excavated skeletons.

400
00:19:31.079 --> 00:19:33.440
<v Speaker 2>Based on his analysis of the bones, he concludes that

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00:19:33.480 --> 00:19:35.160
<v Speaker 2>the vast majority of the burials.

402
00:19:34.799 --> 00:19:37.759
<v Speaker 1>Were female Eaton tells Bingham, these are mostly women, and

403
00:19:37.839 --> 00:19:41.319
<v Speaker 1>Dingham takes that single, deeply flawed data point and sprints

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00:19:41.319 --> 00:19:42.680
<v Speaker 1>straight into fantasyland.

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00:19:43.000 --> 00:19:46.240
<v Speaker 2>He really does. Bingham was well read in Incan history.

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<v Speaker 2>He knew of an institution called the Virgins of the Sun.

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00:19:49.839 --> 00:19:53.119
<v Speaker 2>These were chosen women known as the Akla, who were

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00:19:53.160 --> 00:19:58.079
<v Speaker 2>sequestered to live strict religious, chaste lives, separated from.

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00:19:57.880 --> 00:19:59.880
<v Speaker 1>Men dedicated to the Sun God.

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00:19:59.799 --> 00:20:03.440
<v Speaker 2>Right dedicated to the Sun God and the Emperor. Hearing

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00:20:03.480 --> 00:20:07.039
<v Speaker 2>that the graves were mostly female, Bingham theorizes that this remote,

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00:20:07.240 --> 00:20:11.400
<v Speaker 2>inaccessible city must have been a highly secretive convent designed

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<v Speaker 2>specifically to hide the Virgins of the Sun from the

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<v Speaker 2>invading Spanish.

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00:20:15.799 --> 00:20:18.720
<v Speaker 1>But his imagination didn't stop at the convent theory. He

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00:20:18.799 --> 00:20:21.519
<v Speaker 1>looked at the architecture itself and started spinning even more

417
00:20:21.519 --> 00:20:22.440
<v Speaker 1>elaborate tales.

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00:20:22.759 --> 00:20:26.119
<v Speaker 2>He focused on a very prominent, beautifully carved structure within

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<v Speaker 2>the ruins that features three large trapezoidal windows. Bingham dubbed

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00:20:30.960 --> 00:20:33.559
<v Speaker 2>at the temple of the three windows sounds very dramatic.

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00:20:33.599 --> 00:20:37.039
<v Speaker 2>He immediately linked this specific architectural feature to an ancient

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00:20:37.079 --> 00:20:40.519
<v Speaker 2>Incan origin legend. The myth states that the original founders

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<v Speaker 2>of the Inca civilization. The three Ayre brothers emerged from

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<v Speaker 2>three caves in a mountain to begin their conquest.

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<v Speaker 1>Let me guess he thought the windows were the caves exactly.

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<v Speaker 2>Bingham theorized that the three windows represented those three caves,

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<v Speaker 2>leading him to declare that Machu Picha was not just

428
00:20:57.359 --> 00:21:01.359
<v Speaker 2>a convent, but the very birthplace of the Inca civilization itself.

429
00:21:02.200 --> 00:21:06.920
<v Speaker 1>He's just projecting these massive romantic mythologies onto the stones

430
00:21:07.519 --> 00:21:10.359
<v Speaker 1>to fit his desire for a sweeping.

431
00:21:10.079 --> 00:21:12.559
<v Speaker 2>Historical epic that works perfectly for him.

432
00:21:13.079 --> 00:21:17.119
<v Speaker 1>In nineteen thirteen, National Geographic dedicates an entire issue to

433
00:21:17.200 --> 00:21:20.559
<v Speaker 1>his account, publishing over one hundred of his dramatic photographs.

434
00:21:21.160 --> 00:21:23.880
<v Speaker 1>The world goes absolutely wild for the story of a

435
00:21:23.880 --> 00:21:25.279
<v Speaker 1>lost convent in the clouds.

436
00:21:25.359 --> 00:21:26.400
<v Speaker 2>It was a media sensation.

437
00:21:26.680 --> 00:21:30.119
<v Speaker 1>Bingham becomes a global celebrity. He eventually leverages that fame

438
00:21:30.200 --> 00:21:33.680
<v Speaker 1>into a political career as a US senator, and his wild,

439
00:21:33.759 --> 00:21:37.759
<v Speaker 1>scientifically baseless guesses become the accepted historical truth for the

440
00:21:37.799 --> 00:21:38.839
<v Speaker 1>next eight decades.

441
00:21:38.960 --> 00:21:41.319
<v Speaker 2>It's amazing how a good story can overshadow the facts.

442
00:21:41.599 --> 00:21:43.960
<v Speaker 1>But I really have to push back on Bingham's legacy here.

443
00:21:44.039 --> 00:21:47.079
<v Speaker 1>Should we be celebrating this guy. He follows a local

444
00:21:47.119 --> 00:21:49.640
<v Speaker 1>farmer up the hell, takes credit for discovering a site

445
00:21:49.640 --> 00:21:53.160
<v Speaker 1>where indigenous people are actively farming, and then uses bad

446
00:21:53.240 --> 00:21:56.160
<v Speaker 1>science to spin a bunch of totally incorrect theories that

447
00:21:56.240 --> 00:21:58.799
<v Speaker 1>confuse global historians for almost a century.

448
00:21:58.920 --> 00:22:00.799
<v Speaker 2>It's a very valid criticis.

449
00:22:00.400 --> 00:22:04.079
<v Speaker 1>It just feels like the archetype of the arrogant parachute

450
00:22:04.119 --> 00:22:05.000
<v Speaker 1>in explorer.

451
00:22:05.559 --> 00:22:09.119
<v Speaker 2>That critique is highly prevalent in modern archaeological circles, and

452
00:22:09.240 --> 00:22:14.039
<v Speaker 2>rightfully so. We must view Bingham through a critical lens. However,

453
00:22:14.319 --> 00:22:18.599
<v Speaker 2>historical analysis requires holding two competing truths simultaneously.

454
00:22:18.680 --> 00:22:19.519
<v Speaker 1>What's the other truth?

455
00:22:19.920 --> 00:22:22.839
<v Speaker 2>We can acknowledge his massive flaws, his ego, and his

456
00:22:22.880 --> 00:22:28.319
<v Speaker 2>sloppy conclusions, while also recognizing his genuine, irreplaceable contributions like

457
00:22:28.400 --> 00:22:33.119
<v Speaker 2>what well. Without Bingham's desperate, perhaps selfish drive for fame,

458
00:22:33.680 --> 00:22:36.440
<v Speaker 2>he wouldn't have bothered to haul heavy photographic equipment up

459
00:22:36.480 --> 00:22:40.119
<v Speaker 2>that mudslick cliff. He wouldn't have secured the massive institutional

460
00:22:40.119 --> 00:22:42.519
<v Speaker 2>funding required to clear the aggressive overgrowth.

461
00:22:42.599 --> 00:22:44.680
<v Speaker 1>That's true, the jungle was literally eating it.

462
00:22:44.839 --> 00:22:47.599
<v Speaker 2>By marketing the ruins so effectively to the Western world,

463
00:22:47.880 --> 00:22:51.640
<v Speaker 2>he inadvertently catalyzed its long term protection. If the site

464
00:22:51.640 --> 00:22:54.319
<v Speaker 2>had remained obscure, it could easily have been lost to

465
00:22:54.400 --> 00:22:58.759
<v Speaker 2>slow natural erosion or systematic looting by treasure hunters, long

466
00:22:58.799 --> 00:23:02.079
<v Speaker 2>before rigorous, modern and scientific methodologies could be applied to

467
00:23:02.119 --> 00:23:03.000
<v Speaker 2>study it properly.

468
00:23:03.240 --> 00:23:06.200
<v Speaker 1>That's a fair balance. He was an incredibly flawed messenger,

469
00:23:06.240 --> 00:23:09.240
<v Speaker 1>but he preserved the message exactly. And while Bingham was

470
00:23:09.319 --> 00:23:12.160
<v Speaker 1>completely wrong about who lived there and why it was built,

471
00:23:12.400 --> 00:23:17.720
<v Speaker 1>the photographs he took proved one undeniable objective fact. The

472
00:23:17.759 --> 00:23:21.079
<v Speaker 1>physical reality of Machu Picchu, the how of its construction

473
00:23:21.319 --> 00:23:23.599
<v Speaker 1>is an absolute engineering miracle.

474
00:23:23.880 --> 00:23:27.359
<v Speaker 2>The transition from the romantic myths to the hard physical

475
00:23:27.400 --> 00:23:30.400
<v Speaker 2>reality of the site is where the true genius of

476
00:23:30.440 --> 00:23:31.920
<v Speaker 2>the Inca reveals itself.

477
00:23:32.000 --> 00:23:34.839
<v Speaker 1>Let's really visualize the terrain they were dealing with. The

478
00:23:34.880 --> 00:23:38.000
<v Speaker 1>city isn't built on a flat plateau. It is precariously

479
00:23:38.039 --> 00:23:40.839
<v Speaker 1>balanced on a narrow saddle shaped.

480
00:23:40.599 --> 00:23:42.319
<v Speaker 2>Ridge right a very tight space.

481
00:23:42.400 --> 00:23:44.599
<v Speaker 1>You have the towering peak of Huina Pichu on one

482
00:23:44.680 --> 00:23:47.799
<v Speaker 1>end and Machipichu Mountain on the other, and flanking the

483
00:23:47.839 --> 00:23:51.000
<v Speaker 1>city on both sides are those sixteen hundred foot sheer

484
00:23:51.119 --> 00:23:54.680
<v Speaker 1>drops straight down to the Urubamba River, which wraps around

485
00:23:54.720 --> 00:23:56.359
<v Speaker 1>the base of the mountain like a horseshoe.

486
00:23:56.640 --> 00:23:59.240
<v Speaker 2>Just surveying and planning a city of this magnitude in

487
00:23:59.240 --> 00:24:03.200
<v Speaker 2>that specific topographical bottleneck is a monumental undertaking.

488
00:24:03.200 --> 00:24:04.440
<v Speaker 1>How big is the site? Exactly?

489
00:24:04.599 --> 00:24:07.799
<v Speaker 2>The site encompasses over one hundred and seventy distinct buildings,

490
00:24:08.640 --> 00:24:12.359
<v Speaker 2>thousands of carved stone steps connecting the various levels, sixteen

491
00:24:12.440 --> 00:24:16.480
<v Speaker 2>complex hydraulic fountains, and more than six hundred agricultural terraces

492
00:24:16.480 --> 00:24:18.160
<v Speaker 2>built directly into the steep slopes.

493
00:24:18.319 --> 00:24:21.440
<v Speaker 1>The stone work is what breaks my brain. The masonry

494
00:24:21.480 --> 00:24:25.400
<v Speaker 1>of the elite buildings is legendary. They used massive blocks

495
00:24:25.400 --> 00:24:28.319
<v Speaker 1>of white granite. Some of these stones way over twenty

496
00:24:28.359 --> 00:24:32.079
<v Speaker 1>tons massive, and they fit them together so perfectly with

497
00:24:32.160 --> 00:24:36.240
<v Speaker 1>such precise, multi angled joints that five hundred years later

498
00:24:36.279 --> 00:24:39.000
<v Speaker 1>you cannot slide the blade of a pocket knife between them.

499
00:24:39.559 --> 00:24:42.200
<v Speaker 1>We established they didn't have iron tools to carve them,

500
00:24:42.279 --> 00:24:44.839
<v Speaker 1>they didn't have wheels or pulleys to lift them, and

501
00:24:44.880 --> 00:24:47.640
<v Speaker 1>they didn't use mortar to glue them together. How is

502
00:24:47.680 --> 00:24:48.880
<v Speaker 1>this physically possible?

503
00:24:49.119 --> 00:24:53.519
<v Speaker 2>Our modern mechanized minds instinctively rejected as impossible. We're so

504
00:24:53.680 --> 00:24:57.160
<v Speaker 2>reliant on steel and combustion engines that we under estimate

505
00:24:57.200 --> 00:25:00.599
<v Speaker 2>the sheer power of human ingenuity paired with limits labor.

506
00:25:00.680 --> 00:25:01.519
<v Speaker 1>So how did they do it?

507
00:25:01.680 --> 00:25:05.519
<v Speaker 2>The documentary approaches this by breaking down two fundamental mechanical questions.

508
00:25:06.079 --> 00:25:07.759
<v Speaker 2>How did they cut the granite and how do they

509
00:25:07.799 --> 00:25:08.079
<v Speaker 2>move it?

510
00:25:08.160 --> 00:25:09.279
<v Speaker 1>Okay, let's start with cutting.

511
00:25:09.519 --> 00:25:12.960
<v Speaker 2>The answer to the cutting process is surprisingly primitive yet

512
00:25:13.039 --> 00:25:16.640
<v Speaker 2>brutally effective. They used rock to carve rock.

513
00:25:17.359 --> 00:25:20.720
<v Speaker 1>The documentary shows an expert, Ruth Wright, examining the quarry

514
00:25:20.759 --> 00:25:24.319
<v Speaker 1>on site. She points out a hammerstone and it just

515
00:25:24.359 --> 00:25:26.480
<v Speaker 1>looks like a smooth, heavy rock you'd find at the

516
00:25:26.480 --> 00:25:27.519
<v Speaker 1>bottom of a riverbed.

517
00:25:28.000 --> 00:25:31.400
<v Speaker 2>That is exactly what it is. The inca utilized incredibly

518
00:25:31.440 --> 00:25:35.200
<v Speaker 2>hard river cobbles, some weighing up to thirty pounds. Wow.

519
00:25:35.400 --> 00:25:39.640
<v Speaker 2>The mechanism was pure kinetic force. Masons would hold these

520
00:25:39.680 --> 00:25:42.599
<v Speaker 2>heavy river stones and simply pound away at the raw

521
00:25:42.720 --> 00:25:44.359
<v Speaker 2>white granite in the local quarry.

522
00:25:44.400 --> 00:25:45.279
<v Speaker 1>They didn't chisel it.

523
00:25:45.480 --> 00:25:48.160
<v Speaker 2>No, they didn't slice the stone. They crushed the surface

524
00:25:48.200 --> 00:25:52.400
<v Speaker 2>away millimeter by agonizing millimeter until they achieved the perfect

525
00:25:52.400 --> 00:25:55.920
<v Speaker 2>geometric shape. It required immense punishing human labor.

526
00:25:56.039 --> 00:25:59.559
<v Speaker 1>Imagine the logistical chain required just to haul thousands of

527
00:25:59.559 --> 00:26:02.680
<v Speaker 1>thirty river rocks all the way up a sixteen hundred

528
00:26:02.720 --> 00:26:05.559
<v Speaker 1>foot mountain from the river below, specifically to use them

529
00:26:05.559 --> 00:26:08.000
<v Speaker 1>as disposable hammers to shape the local bedrock.

530
00:26:08.079 --> 00:26:09.160
<v Speaker 2>It is mind boggling.

531
00:26:09.279 --> 00:26:12.119
<v Speaker 1>It's like being asked to put together a massive twenty

532
00:26:12.200 --> 00:26:15.599
<v Speaker 1>ton three D jigsaw puzzle, but first you have to

533
00:26:15.640 --> 00:26:18.519
<v Speaker 1>carve the puzzle pieces yourself, using only a slightly harder

534
00:26:18.599 --> 00:26:23.480
<v Speaker 1>rock as your tool. The patience required is staggering, truly staggering.

535
00:26:23.519 --> 00:26:25.519
<v Speaker 1>But let's look at the second problem. Even if you

536
00:26:25.559 --> 00:26:29.039
<v Speaker 1>spend months pounding a twenty ton block of granite into

537
00:26:29.079 --> 00:26:33.319
<v Speaker 1>a perfect trapezoid, how do you move it? Because without wheels,

538
00:26:33.359 --> 00:26:36.559
<v Speaker 1>without cranes, dragging a twenty ton rock up a staircase

539
00:26:36.799 --> 00:26:38.279
<v Speaker 1>feels like a physics violation.

540
00:26:38.640 --> 00:26:43.640
<v Speaker 2>This is where practical experimental archaeology provides clarity. The documentary

541
00:26:43.720 --> 00:26:46.000
<v Speaker 2>highlights the work of an architect named Vince Lee.

542
00:26:46.160 --> 00:26:47.400
<v Speaker 1>Oh I loved this part.

543
00:26:47.559 --> 00:26:50.200
<v Speaker 2>In nineteen ninety eight, he conducted a field experiment to

544
00:26:50.240 --> 00:26:53.279
<v Speaker 2>see if he could replicate INCA moving techniques using only

545
00:26:53.279 --> 00:26:56.440
<v Speaker 2>the materials available to them. He procured a thirteen ton

546
00:26:56.480 --> 00:26:57.839
<v Speaker 2>block of solid marble.

547
00:26:57.880 --> 00:26:59.799
<v Speaker 1>Okay, so a huge block, Yes, His.

548
00:27:00.000 --> 00:27:02.160
<v Speaker 2>Active was to move this massive stone up a wooden

549
00:27:02.240 --> 00:27:04.440
<v Speaker 2>ramp with a steep twenty five percent grade and then

550
00:27:04.519 --> 00:27:06.920
<v Speaker 2>crucially turn it ninety degrees to fit it into a

551
00:27:06.960 --> 00:27:08.119
<v Speaker 2>tight mock wall position.

552
00:27:08.279 --> 00:27:10.599
<v Speaker 1>And he set a major constraint for himself, right, he

553
00:27:10.640 --> 00:27:12.119
<v Speaker 1>wanted to do it without ropes.

554
00:27:12.079 --> 00:27:15.720
<v Speaker 2>Exactly, the logic being that in the very tight confined

555
00:27:15.759 --> 00:27:18.839
<v Speaker 2>alleys and corners of Machu Picchu, you couldn't fit a

556
00:27:18.880 --> 00:27:21.200
<v Speaker 2>team of one hundred men pulling on a long rope.

557
00:27:22.519 --> 00:27:23.839
<v Speaker 2>It just wasn't the physical space.

558
00:27:23.920 --> 00:27:24.839
<v Speaker 1>So they had to push it.

559
00:27:25.240 --> 00:27:28.559
<v Speaker 2>The spatial constraints demanded a pushing mechanism, not a pulling one.

560
00:27:29.279 --> 00:27:32.359
<v Speaker 2>Lee hypothesized that the Inca used a heavy wooden sled

561
00:27:32.920 --> 00:27:34.720
<v Speaker 2>resting on a lubricated wooden track.

562
00:27:34.799 --> 00:27:35.759
<v Speaker 1>Okay, that makes sense.

563
00:27:35.880 --> 00:27:38.880
<v Speaker 2>To generate the massive force required to push thirteen tons

564
00:27:38.960 --> 00:27:43.000
<v Speaker 2>up a steep incline, he utilized the physics of leverage.

565
00:27:43.079 --> 00:27:46.240
<v Speaker 2>He had his team use long, sturdy logs as levers,

566
00:27:46.559 --> 00:27:47.839
<v Speaker 2>wedging them behind the sled.

567
00:27:48.079 --> 00:27:50.599
<v Speaker 1>I can vividly imagine the energy of this experiment. You

568
00:27:50.599 --> 00:27:53.559
<v Speaker 1>have a small group of volunteers wedged shoulder to shoulder

569
00:27:53.640 --> 00:27:57.519
<v Speaker 1>holding these massive log levers. They coordinate their movements yelling

570
00:27:57.759 --> 00:28:00.759
<v Speaker 1>udo doos chess, and they throw their entire body weight

571
00:28:00.759 --> 00:28:04.319
<v Speaker 1>against the levers simultaneously. It works, and through the simple

572
00:28:04.359 --> 00:28:07.680
<v Speaker 1>mechanical advantage of the lever multiplying their force, you hear

573
00:28:07.720 --> 00:28:10.440
<v Speaker 1>this massive groan of wood grinding on wood, and this

574
00:28:10.559 --> 00:28:13.640
<v Speaker 1>thirteen ton block of marble actually lurches forward.

575
00:28:13.880 --> 00:28:18.200
<v Speaker 2>The physics worked flawlessly. By inching the sled forward with levers,

576
00:28:18.519 --> 00:28:21.799
<v Speaker 2>they successfully moved the thirteen ton block up the twenty

577
00:28:21.799 --> 00:28:25.440
<v Speaker 2>five percent incline that is insane. Furthermore, they prove they

578
00:28:25.440 --> 00:28:27.680
<v Speaker 2>could turn the block ninety degrees in a tight space

579
00:28:27.799 --> 00:28:31.640
<v Speaker 2>by using the levers to pivot the sled. The experiment

580
00:28:31.880 --> 00:28:36.200
<v Speaker 2>conclusively demonstrated that the construction of these monumental buildings, which

581
00:28:36.279 --> 00:28:40.359
<v Speaker 2>relied on immense weight and precise fits, was entirely achievable

582
00:28:40.559 --> 00:28:44.680
<v Speaker 2>using nothing but human sweat, basic leverage, physics, and organized time.

583
00:28:44.920 --> 00:28:47.720
<v Speaker 1>You know, every time I see a special on ancient monuments,

584
00:28:47.720 --> 00:28:51.640
<v Speaker 1>whether it's the Pyramids or Stonehenge or Machipicchu, there's always

585
00:28:51.640 --> 00:28:56.519
<v Speaker 1>that fringe element promoting alien conspiracy theories. The narrative is always, oh,

586
00:28:56.640 --> 00:28:59.119
<v Speaker 1>primitive humans couldn't possibly have built this. It must have

587
00:28:59.119 --> 00:29:02.960
<v Speaker 1>been extraterrestrial levitation, but vince Lee's experiment is the ultimate

588
00:29:03.000 --> 00:29:03.720
<v Speaker 1>debunking of that.

589
00:29:03.960 --> 00:29:04.799
<v Speaker 2>It absolutely is.

590
00:29:04.920 --> 00:29:08.720
<v Speaker 1>It proves that simple physics, relentless effort, and human ingenuity

591
00:29:08.759 --> 00:29:11.960
<v Speaker 1>are infinitely more impressive than any sci fi explanation.

592
00:29:12.319 --> 00:29:16.880
<v Speaker 2>The alien theories strip ancient indigenous peoples of their agency

593
00:29:16.920 --> 00:29:20.240
<v Speaker 2>and their brilliance. What the construction of Machu Picu truly

594
00:29:20.319 --> 00:29:25.640
<v Speaker 2>demonstrates is the human capacity for hyper specific environmental problem solving.

595
00:29:25.799 --> 00:29:26.359
<v Speaker 1>Exactly.

596
00:29:26.559 --> 00:29:29.240
<v Speaker 2>We often equate a lack of wheels or smelted iron

597
00:29:29.319 --> 00:29:33.079
<v Speaker 2>with a primitive intellect, but the Inca didn't lack intelligence.

598
00:29:33.359 --> 00:29:36.319
<v Speaker 2>They faced highly specific geographical constraints.

599
00:29:36.480 --> 00:29:38.160
<v Speaker 1>Right, wheels wouldn't even work up there.

600
00:29:38.200 --> 00:29:42.039
<v Speaker 2>Precisely, if you think about the steep, tight vertical staircases

601
00:29:42.039 --> 00:29:45.400
<v Speaker 2>of a mountain peak, a wheeled cart is not an advantage.

602
00:29:45.519 --> 00:29:47.039
<v Speaker 2>It is a lethal liability.

603
00:29:47.200 --> 00:29:47.720
<v Speaker 1>Oh true.

604
00:29:47.799 --> 00:29:49.920
<v Speaker 2>A court loaded with a ten ton stone on a

605
00:29:49.920 --> 00:29:53.240
<v Speaker 2>thirty degree mountain slope will simply roll backward and kill

606
00:29:53.279 --> 00:29:57.319
<v Speaker 2>everyone behind it. The Inca evaluated their environment and innovated

607
00:29:57.359 --> 00:30:00.920
<v Speaker 2>the exact physical tools levers, sleds, and friction that were

608
00:30:00.960 --> 00:30:04.119
<v Speaker 2>perfectly adapted to safely navigate their vertical world.

609
00:30:04.039 --> 00:30:07.519
<v Speaker 1>And that adaptation extends to the masonry itself. The mortarless

610
00:30:07.519 --> 00:30:10.400
<v Speaker 1>construction wasn't just them showing off their stone carving skills.

611
00:30:10.480 --> 00:30:12.759
<v Speaker 1>It was a functional necessity for survival.

612
00:30:13.079 --> 00:30:16.519
<v Speaker 2>The Andes Mountains sit on a highly active seismic zone.

613
00:30:16.640 --> 00:30:20.240
<v Speaker 2>Earthquakes are a constant destructive reality. If you build a

614
00:30:20.319 --> 00:30:23.799
<v Speaker 2>massive stone wall and glue it together with rigid mortar,

615
00:30:24.039 --> 00:30:27.599
<v Speaker 2>when the earth shakes, the mortar cracks, the wall loses

616
00:30:27.640 --> 00:30:30.480
<v Speaker 2>its structural integrity, and the building collaxis.

617
00:30:30.599 --> 00:30:31.680
<v Speaker 1>So how did they solve it?

618
00:30:32.200 --> 00:30:35.880
<v Speaker 2>The INCA engineers solve this by relying on gravity and geometry.

619
00:30:36.240 --> 00:30:39.200
<v Speaker 2>Because the stones were carved with multi angled joints that

620
00:30:39.279 --> 00:30:42.200
<v Speaker 2>lock together perfectly without mortar, the walls were.

621
00:30:42.119 --> 00:30:43.599
<v Speaker 1>Dynamic dynamic walls.

622
00:30:43.680 --> 00:30:47.880
<v Speaker 2>Yes, during an earthquake, the massive stones could actually shift slightly,

623
00:30:48.160 --> 00:30:51.640
<v Speaker 2>essentially dancing to absorb the kinetic energy of the tremor,

624
00:30:52.359 --> 00:30:55.839
<v Speaker 2>and then, guided by their perfectly matched angles in sheer weight,

625
00:30:56.160 --> 00:30:59.359
<v Speaker 2>they would settle right back into their original stable positions.

626
00:30:59.799 --> 00:31:02.400
<v Speaker 2>Is a brilliant earthquake resistant design.

627
00:31:02.440 --> 00:31:04.599
<v Speaker 1>Okay, so they figured out how to move the stones,

628
00:31:04.640 --> 00:31:07.039
<v Speaker 1>and they figured out how to make them survive an earthquake.

629
00:31:07.279 --> 00:31:09.799
<v Speaker 1>But building a heavy stone city on the side of

630
00:31:09.839 --> 00:31:14.720
<v Speaker 1>a cliff and a rainforest presents a completely different terrifying

631
00:31:14.759 --> 00:31:17.640
<v Speaker 1>problem water, Right, how do you keep the whole thing

632
00:31:17.680 --> 00:31:20.559
<v Speaker 1>from just sliding down the mountain in a massive mudslide.

633
00:31:20.599 --> 00:31:23.200
<v Speaker 2>Controlling the flow of water and stabilizing the earth was

634
00:31:23.240 --> 00:31:25.359
<v Speaker 2>perhaps their greatest engineering triumph.

635
00:31:25.519 --> 00:31:28.799
<v Speaker 1>Let's talk about the rain because the Urubamba cloud forest

636
00:31:28.880 --> 00:31:33.119
<v Speaker 1>is intensely wet. The documentary notes that Machu Pichu receives

637
00:31:33.240 --> 00:31:36.200
<v Speaker 1>roughly seventy nine inches of rainfall every single year.

638
00:31:36.400 --> 00:31:38.720
<v Speaker 2>That is a staggering volume of water.

639
00:31:38.519 --> 00:31:42.960
<v Speaker 1>Hitting a steep dirt slope Under normal circumstances, that much

640
00:31:43.000 --> 00:31:46.359
<v Speaker 1>water turns the top soil into a slurry and washes

641
00:31:46.400 --> 00:31:47.880
<v Speaker 1>the entire hillside away.

642
00:31:48.599 --> 00:31:51.920
<v Speaker 2>To prevent catastrophic erosion, the Inca engineers had to anchor

643
00:31:51.960 --> 00:31:54.839
<v Speaker 2>the city to the mountain. They achieved this by building

644
00:31:54.839 --> 00:31:56.440
<v Speaker 2>over six hundred terraces.

645
00:31:56.640 --> 00:31:59.799
<v Speaker 1>We often think of terraces simply as flat areas carved

646
00:31:59.839 --> 00:32:01.720
<v Speaker 1>out for farming, right, yes.

647
00:32:01.640 --> 00:32:04.680
<v Speaker 2>But as civil engineer Kenneth Wright points out in the documentary,

648
00:32:04.920 --> 00:32:08.640
<v Speaker 2>these structures acted as structural claws, gripping the mountain side

649
00:32:08.720 --> 00:32:10.000
<v Speaker 2>and holding the city in place.

650
00:32:10.119 --> 00:32:13.640
<v Speaker 1>The internal engineering of these terraces is fascinating. They didn't

651
00:32:13.720 --> 00:32:16.839
<v Speaker 1>just build a stone wall and dump random dirt behind it.

652
00:32:16.839 --> 00:32:19.680
<v Speaker 1>It was highly stratified, deliberate construction.

653
00:32:19.880 --> 00:32:21.680
<v Speaker 2>If you were to slice a terrace open, you'd see

654
00:32:21.680 --> 00:32:24.960
<v Speaker 2>distinct layers, like a cake sort of. They started at

655
00:32:24.960 --> 00:32:27.960
<v Speaker 2>the bottom with a coarse rock base to provide stability

656
00:32:28.079 --> 00:32:31.279
<v Speaker 2>and allow bulk water flow. Above that, they laid a

657
00:32:31.359 --> 00:32:34.279
<v Speaker 2>layer of smaller stones than a layer of gravel, than

658
00:32:34.319 --> 00:32:37.400
<v Speaker 2>a layer of sand, and finally capping it all off

659
00:32:37.680 --> 00:32:39.440
<v Speaker 2>three feet of rich top soil.

660
00:32:39.559 --> 00:32:42.319
<v Speaker 1>And we must emphasize that this nutrient rich top soil

661
00:32:42.400 --> 00:32:44.359
<v Speaker 1>did not originate on the rocky mountain peak.

662
00:32:44.640 --> 00:32:48.599
<v Speaker 2>It was imported, Yes it was. Laborers carried it basket

663
00:32:48.640 --> 00:32:51.160
<v Speaker 2>by heavy basket all the way up from the Eurubamba

664
00:32:51.240 --> 00:32:53.279
<v Speaker 2>floodplain sixteen hundred feet below.

665
00:32:53.720 --> 00:32:57.640
<v Speaker 1>The sheer caloric expenditure involved in just transporting the dirt

666
00:32:57.720 --> 00:32:59.960
<v Speaker 1>to build the terraces is mine boggling.

667
00:33:00.000 --> 00:33:01.160
<v Speaker 2>It's hard to even calculate.

668
00:33:01.240 --> 00:33:03.880
<v Speaker 1>I picture the terrace is functioning like a giant mountain

669
00:33:03.960 --> 00:33:06.240
<v Speaker 1>sized French press. If you just pour a bucket of

670
00:33:06.279 --> 00:33:08.960
<v Speaker 1>water onto top soil, it turns to mud and washes away.

671
00:33:09.559 --> 00:33:13.079
<v Speaker 1>But the Inca engineered a massive filtration system. Right when

672
00:33:13.200 --> 00:33:16.200
<v Speaker 1>those seventy nine inches of torrential rain hit the terraces,

673
00:33:16.559 --> 00:33:18.759
<v Speaker 1>the kinetic energy of the water is broken by the

674
00:33:18.759 --> 00:33:21.640
<v Speaker 1>flat surface. The water doesn't sheet off the side and

675
00:33:21.680 --> 00:33:24.759
<v Speaker 1>cause a mud slide. Instead, the sand acts as a

676
00:33:24.799 --> 00:33:27.960
<v Speaker 1>fine filter, preventing the top soil from washing down.

677
00:33:28.279 --> 00:33:31.599
<v Speaker 2>The water percolates gently down through the gravel and the

678
00:33:31.640 --> 00:33:35.240
<v Speaker 2>coarse rocks, safely draining through the mountain without taking the

679
00:33:35.279 --> 00:33:36.160
<v Speaker 2>soil with it.

680
00:33:36.160 --> 00:33:38.960
<v Speaker 1>It is a masterpiece of preventative hydraulic engineering.

681
00:33:39.039 --> 00:33:42.480
<v Speaker 2>By controlling the internal hydrostatic pressure of the mountain, they

682
00:33:42.559 --> 00:33:46.200
<v Speaker 2>ensured the city wouldn't wash away. Now, these terraces, while

683
00:33:46.240 --> 00:33:49.880
<v Speaker 2>structurally vital, did also serve an agricultural purpose.

684
00:33:50.160 --> 00:33:51.359
<v Speaker 1>Right they grew food on them.

685
00:33:51.799 --> 00:33:54.759
<v Speaker 2>Soil samples taken in the nineteen nineties and analyzed for

686
00:33:54.839 --> 00:33:58.759
<v Speaker 2>ancient pollens proved that the Inca grew maize, potatoes, and

687
00:33:58.799 --> 00:34:01.960
<v Speaker 2>avocados on these twelve acres of terraced land.

688
00:34:02.279 --> 00:34:05.559
<v Speaker 1>As much as I appreciate the historical conformation of fifteenth

689
00:34:05.559 --> 00:34:09.760
<v Speaker 1>century avocados, there is a massive mathematical problem here. Kenneth

690
00:34:09.760 --> 00:34:13.119
<v Speaker 1>Wright crunched the numbers he did. He calculated the agricultural

691
00:34:13.159 --> 00:34:16.079
<v Speaker 1>yield of those twelve acres and concluded that the terraces

692
00:34:16.119 --> 00:34:18.920
<v Speaker 1>could only provide enough calories to feed about fifty five

693
00:34:18.960 --> 00:34:20.480
<v Speaker 1>people on a permanent basis.

694
00:34:20.639 --> 00:34:24.920
<v Speaker 2>That is the critical logistical bottleneck, because archaeological estimates place

695
00:34:25.000 --> 00:34:28.320
<v Speaker 2>the permanent or seasonal population of Machu Pichu anywhere from

696
00:34:28.320 --> 00:34:30.079
<v Speaker 2>three hundred to seven hundred and fifty people.

697
00:34:30.320 --> 00:34:33.000
<v Speaker 1>So the math absolutely does not add up. If they

698
00:34:33.039 --> 00:34:35.480
<v Speaker 1>have seven hundred and fifty people and they can only

699
00:34:35.559 --> 00:34:38.199
<v Speaker 1>grow food for fifty five people, where are the calories

700
00:34:38.239 --> 00:34:39.199
<v Speaker 1>coming from, the.

701
00:34:39.199 --> 00:34:42.159
<v Speaker 2>Vast majority of their food had to be imported. It

702
00:34:42.239 --> 00:34:45.960
<v Speaker 2>was grown on the wide, highly fertile agricultural lands down

703
00:34:45.960 --> 00:34:48.880
<v Speaker 2>in the River valley and constantly carried up the mountain

704
00:34:48.920 --> 00:34:49.519
<v Speaker 2>by porters.

705
00:34:50.039 --> 00:34:53.280
<v Speaker 1>This brings up a massive conceptual hurdle for me. If

706
00:34:53.280 --> 00:34:56.320
<v Speaker 1>the site is so incredibly remote and difficult to access,

707
00:34:56.639 --> 00:34:58.599
<v Speaker 1>if you have to carry the very dirt up in

708
00:34:58.679 --> 00:35:01.280
<v Speaker 1>baskets just to build the ground, and if you can't

709
00:35:01.320 --> 00:35:03.639
<v Speaker 1>even grow enough food to feed the people living there,

710
00:35:03.639 --> 00:35:07.679
<v Speaker 1>requiring a constant, labor intensive supply chain hauling corn up

711
00:35:07.679 --> 00:35:08.440
<v Speaker 1>a mountain wy on.

712
00:35:08.480 --> 00:35:10.960
<v Speaker 2>Earth build it there, it seems illogical.

713
00:35:10.559 --> 00:35:14.360
<v Speaker 1>From a practical survivalist standpoint, it is the most inefficient

714
00:35:14.440 --> 00:35:15.480
<v Speaker 1>location possible.

715
00:35:15.559 --> 00:35:17.440
<v Speaker 2>If you look at it purely through the lens of

716
00:35:17.559 --> 00:35:21.199
<v Speaker 2>utilitarian survival, it makes no sense. But Machu Pichu wasn't

717
00:35:21.199 --> 00:35:24.599
<v Speaker 2>designed for mere survival. It was designed to project divine

718
00:35:24.679 --> 00:35:27.880
<v Speaker 2>power and commune with the sacred. Well understand the why,

719
00:35:28.480 --> 00:35:31.599
<v Speaker 2>we have to look at the meticulous city planning. The

720
00:35:31.639 --> 00:35:35.760
<v Speaker 2>city was strictly divided into distinct sectors, an agricultural sector

721
00:35:35.800 --> 00:35:38.480
<v Speaker 2>on the lower slopes and an urban sector higher up,

722
00:35:38.880 --> 00:35:41.079
<v Speaker 2>separated by a large open plaza.

723
00:35:41.159 --> 00:35:43.199
<v Speaker 1>And the urban sector was split too right.

724
00:35:43.480 --> 00:35:47.360
<v Speaker 2>The urban sector was further subdivided. The eastern side housed

725
00:35:47.400 --> 00:35:52.079
<v Speaker 2>functional buildings, workshops, housing for visiting priests and administrators. The

726
00:35:52.119 --> 00:35:55.119
<v Speaker 2>western side, however, housed the major religious temples and the

727
00:35:55.159 --> 00:35:59.840
<v Speaker 2>sprawling royal residents, which Hiram Bingham accurately labeled the King's Group.

728
00:36:00.199 --> 00:36:03.920
<v Speaker 1>The King's Group is characterized by those massive, beautifully finished

729
00:36:04.000 --> 00:36:08.039
<v Speaker 1>three ton stone lintels resting above the doorways. It screams

730
00:36:08.360 --> 00:36:09.320
<v Speaker 1>elite status.

731
00:36:09.599 --> 00:36:12.559
<v Speaker 2>It really does, and the entire layout of this complex,

732
00:36:12.559 --> 00:36:18.079
<v Speaker 2>segregated city was likely dictated by a single vital physical element, waterflow.

733
00:36:18.239 --> 00:36:22.280
<v Speaker 2>Water again, Inca hydraulic engineers tapped a natural spring located

734
00:36:22.280 --> 00:36:24.840
<v Speaker 2>a half mile away on the slopes of Machupchu Mountain.

735
00:36:25.360 --> 00:36:28.199
<v Speaker 2>They constructed a two four hundred and fifty foot stone

736
00:36:28.239 --> 00:36:31.519
<v Speaker 2>lined canal to carry that fresh drinking water directly into

737
00:36:31.559 --> 00:36:32.320
<v Speaker 2>the heart of the city.

738
00:36:32.360 --> 00:36:34.519
<v Speaker 1>And this is where the physics of gravity fed water

739
00:36:34.639 --> 00:36:37.440
<v Speaker 1>dictate the architecture. Yeah, the water fed a series of

740
00:36:37.480 --> 00:36:42.039
<v Speaker 1>sixteen interconnected cascading fountains, but to keep the water flowing

741
00:36:42.079 --> 00:36:44.840
<v Speaker 1>at a manageable speed so it didn't pool and stagnate,

742
00:36:45.239 --> 00:36:49.639
<v Speaker 1>but also didn't rush so fast that it eroded the stone,

743
00:36:49.679 --> 00:36:51.800
<v Speaker 1>the canal had to be built at a very precise,

744
00:36:51.920 --> 00:36:53.239
<v Speaker 1>consistent slope.

745
00:36:53.159 --> 00:36:56.599
<v Speaker 2>Exactly because the laws of physics and gravity determined the

746
00:36:56.599 --> 00:36:59.519
<v Speaker 2>slope of the canal the physical location where that water

747
00:36:59.639 --> 00:37:03.000
<v Speaker 2>finally enter the city proper. The location of Fountain number

748
00:37:03.000 --> 00:37:06.079
<v Speaker 2>one was predetermined by nature, not by an architect's whim.

749
00:37:06.440 --> 00:37:10.280
<v Speaker 1>And in a highly stratified society, who gets first access

750
00:37:10.400 --> 00:37:14.159
<v Speaker 1>to the absolute cleanest, purest water from Fountain number one?

751
00:37:14.280 --> 00:37:15.599
<v Speaker 2>The Emperor, of course.

752
00:37:15.400 --> 00:37:17.880
<v Speaker 1>The royal residents, and the adjacent Temple of the Sun

753
00:37:18.079 --> 00:37:21.679
<v Speaker 1>were constructed immediately next to Fountain number one. The physics

754
00:37:21.679 --> 00:37:24.440
<v Speaker 1>of the water slope dictated the location of the royal palace,

755
00:37:24.719 --> 00:37:27.320
<v Speaker 1>which in turn anchored the layout of the entire western

756
00:37:27.400 --> 00:37:28.079
<v Speaker 1>urban sector.

757
00:37:28.280 --> 00:37:30.960
<v Speaker 2>It is an incredible synergy where the environment dictated the

758
00:37:31.079 --> 00:37:34.519
<v Speaker 2>architecture and the architecture revered the environment.

759
00:37:34.639 --> 00:37:37.920
<v Speaker 1>Peter Frost, an Andean scholar in the documentary, expands on

760
00:37:37.960 --> 00:37:41.159
<v Speaker 1>this concept. He explains that the Inca didn't view nature

761
00:37:41.199 --> 00:37:43.159
<v Speaker 1>as something to be conquered or paved over.

762
00:37:43.679 --> 00:37:46.840
<v Speaker 2>No, they believe the earth itself was alive and filled

763
00:37:46.880 --> 00:37:47.800
<v Speaker 2>with sacred powers.

764
00:37:47.960 --> 00:37:49.159
<v Speaker 1>They focused their worship on.

765
00:37:49.239 --> 00:37:54.000
<v Speaker 2>Huacas, yes wakas, which could be sacred rocks, mountain peaks, streams,

766
00:37:54.079 --> 00:37:57.760
<v Speaker 2>or springs. They've built their architecture to integrate with these wakas.

767
00:37:57.840 --> 00:38:01.000
<v Speaker 1>You see this integration everywhere at the site. The main

768
00:38:01.159 --> 00:38:04.119
<v Speaker 1>gateway to the city is designed to perfectly frame the

769
00:38:04.159 --> 00:38:06.280
<v Speaker 1>towering peak of Juena Peachu.

770
00:38:06.079 --> 00:38:07.960
<v Speaker 2>And the Temple of the Sun is perhaps the most

771
00:38:08.000 --> 00:38:12.159
<v Speaker 2>profound example. It is a beautifully curved, semi circular tower,

772
00:38:12.760 --> 00:38:14.519
<v Speaker 2>but it wasn't built on a flat foundation.

773
00:38:14.800 --> 00:38:15.599
<v Speaker 1>What was it built on?

774
00:38:15.880 --> 00:38:18.280
<v Speaker 2>It was built directly around and on top of a

775
00:38:18.440 --> 00:38:22.639
<v Speaker 2>massive naturally occurring boulder, a major huaka. Yeah, the carved

776
00:38:22.679 --> 00:38:24.960
<v Speaker 2>stone walls literally embrace the raw.

777
00:38:24.800 --> 00:38:28.960
<v Speaker 1>Bedrock wow and the temple functions as a massive celestial clock.

778
00:38:29.039 --> 00:38:32.199
<v Speaker 1>It has a specific eastern facing window. On the morning

779
00:38:32.239 --> 00:38:35.079
<v Speaker 1>of the winter solstice, as the sun rises over the

780
00:38:35.119 --> 00:38:38.559
<v Speaker 1>distant peaks, the light shines directly through that window and

781
00:38:38.599 --> 00:38:41.559
<v Speaker 1>casts a beam onto the sacred rock inside.

782
00:38:41.239 --> 00:38:43.599
<v Speaker 2>And the rock is carved with a specific groove so

783
00:38:43.679 --> 00:38:47.039
<v Speaker 2>that the solstice sunlight is split perfectly in half. It

784
00:38:47.079 --> 00:38:49.880
<v Speaker 2>is a precise solar observatory built to track the movements

785
00:38:49.880 --> 00:38:50.840
<v Speaker 2>of their primary deity.

786
00:38:51.000 --> 00:38:53.280
<v Speaker 1>At the highest point in the urban sector you find

787
00:38:53.320 --> 00:38:57.480
<v Speaker 1>another profound huaka, a carved pillar of stone known as

788
00:38:57.519 --> 00:38:58.880
<v Speaker 1>the into Watana.

789
00:38:58.920 --> 00:39:01.840
<v Speaker 2>The modern translation of the name means the hitching post

790
00:39:01.840 --> 00:39:02.320
<v Speaker 2>of the sun.

791
00:39:02.599 --> 00:39:04.239
<v Speaker 1>That is such an evocative name.

792
00:39:04.480 --> 00:39:07.519
<v Speaker 2>While we cannot know the exact rituals with certainty because

793
00:39:07.559 --> 00:39:11.880
<v Speaker 2>the Inca left no written records, anthropologists heavily speculate, based

794
00:39:11.920 --> 00:39:13.840
<v Speaker 2>on later Spanish accounts.

795
00:39:13.679 --> 00:39:15.039
<v Speaker 1>What do they think happened there.

796
00:39:15.719 --> 00:39:18.280
<v Speaker 2>It is believed that during the winter solstice, the shortest

797
00:39:18.320 --> 00:39:20.239
<v Speaker 2>day of the year, when the sun god seemed to

798
00:39:20.280 --> 00:39:24.559
<v Speaker 2>be abandoning the earth, priests would perform desperate, elaborate ceremonies

799
00:39:24.599 --> 00:39:28.039
<v Speaker 2>at the Intuwatana to ritually tie or hitch the sun

800
00:39:28.079 --> 00:39:30.840
<v Speaker 2>to the stone, pleading with it not to disappear, right,

801
00:39:30.880 --> 00:39:33.320
<v Speaker 2>pleading with it not to disappear beyond the horizon and

802
00:39:33.320 --> 00:39:34.800
<v Speaker 2>plunge the world into darkness.

803
00:39:34.960 --> 00:39:37.320
<v Speaker 1>So we have built a picture of a city that

804
00:39:37.519 --> 00:39:42.239
<v Speaker 1>is a gravity defying engineering marvel, a masterclass in hydraulic

805
00:39:42.280 --> 00:39:47.079
<v Speaker 1>and seismic design, a sacred solar observatory, and an elite

806
00:39:47.159 --> 00:39:51.199
<v Speaker 1>compound that is entirely reliant on an external food supply chain.

807
00:39:51.440 --> 00:39:53.960
<v Speaker 1>It's a lot to process, which brings us all the

808
00:39:53.960 --> 00:39:58.719
<v Speaker 1>way back to the core riddle, why build this impractical, beautiful,

809
00:39:58.800 --> 00:40:02.199
<v Speaker 1>sacred city in the cloud? What was its actual function?

810
00:40:02.960 --> 00:40:05.400
<v Speaker 2>To answer that, we have to look at how modern

811
00:40:05.440 --> 00:40:09.679
<v Speaker 2>science finally stepped in to overturn Hiram Bingham's romantic guesses.

812
00:40:09.800 --> 00:40:12.719
<v Speaker 1>This is where the story shifts from exploration to rigorous

813
00:40:12.719 --> 00:40:13.679
<v Speaker 1>forensic science.

814
00:40:13.880 --> 00:40:17.880
<v Speaker 2>For decades after Bingham's nineteen eleven expedition, the true purpose

815
00:40:17.920 --> 00:40:22.000
<v Speaker 2>of Machu Picchu remained a total mystery. Bingham's theories, the

816
00:40:22.079 --> 00:40:25.400
<v Speaker 2>convent for virgins, the birthplace of the Inca, the last

817
00:40:25.480 --> 00:40:28.360
<v Speaker 2>rebel stronghold, ruled the history books simply because no one

818
00:40:28.400 --> 00:40:29.760
<v Speaker 2>had the data to challenge them.

819
00:40:29.800 --> 00:40:32.639
<v Speaker 1>But in the nineteen eighties, science began to aggressively correct

820
00:40:32.679 --> 00:40:33.719
<v Speaker 1>the historical record.

821
00:40:33.880 --> 00:40:36.960
<v Speaker 2>And this scientific revolution didn't happen on a misty mountain peak.

822
00:40:37.079 --> 00:40:39.000
<v Speaker 2>It started in a basement in Connecticut.

823
00:40:39.119 --> 00:40:43.039
<v Speaker 1>Anthropologists Richard Berger and Lucy Salazar decided to re examine

824
00:40:43.039 --> 00:40:46.280
<v Speaker 1>the original physical artifacts from Bingham's nineteen twelve excavation.

825
00:40:46.480 --> 00:40:50.440
<v Speaker 2>These were items, pottery, tools, bones that had literally been

826
00:40:50.480 --> 00:40:53.199
<v Speaker 2>sitting in dusty cardboard boxes in the basement of Yale's

827
00:40:53.199 --> 00:40:55.880
<v Speaker 2>Peabody Museum of Natural History for eighty years.

828
00:40:56.000 --> 00:40:58.159
<v Speaker 1>The answers were just waiting in storage.

829
00:40:57.760 --> 00:41:03.320
<v Speaker 2>They really were. Lucy Salazar focused our analysis on the ceramics. Specifically,

830
00:41:03.519 --> 00:41:07.960
<v Speaker 2>she identified several distinct jars featuring two vertical handles.

831
00:41:08.280 --> 00:41:09.840
<v Speaker 1>What's special about those jars?

832
00:41:09.920 --> 00:41:14.440
<v Speaker 2>Through comparative archaeological analysis, she identified these specific jars as

833
00:41:14.480 --> 00:41:16.280
<v Speaker 2>belonging to a group called the Colis.

834
00:41:16.840 --> 00:41:19.079
<v Speaker 1>Who are the Calas and why does their pottery blow

835
00:41:19.119 --> 00:41:20.119
<v Speaker 1>up Bingham's theories?

836
00:41:20.360 --> 00:41:22.880
<v Speaker 2>The Culas were a distinct ethnic group from the Lake

837
00:41:22.960 --> 00:41:26.920
<v Speaker 2>Titikaka region, located hundreds of miles away on the modern

838
00:41:27.000 --> 00:41:31.199
<v Speaker 2>day Peruvian Bolivian border. They had been conquered and assimilated

839
00:41:31.239 --> 00:41:32.840
<v Speaker 2>by the expanding Inca Empire.

840
00:41:33.119 --> 00:41:34.639
<v Speaker 1>Okay, so they were from far away.

841
00:41:34.880 --> 00:41:37.599
<v Speaker 2>Crucially, the Colas were renowned throughout the Andes for their

842
00:41:37.639 --> 00:41:39.440
<v Speaker 2>superior stone masonry skills.

843
00:41:39.599 --> 00:41:41.159
<v Speaker 1>Ah, I see where this is going.

844
00:41:41.320 --> 00:41:44.440
<v Speaker 2>The presence of their specific domestic pottery at Machu Pichu

845
00:41:44.760 --> 00:41:47.480
<v Speaker 2>proved that the city wasn't built and inhabited solely by

846
00:41:47.480 --> 00:41:52.119
<v Speaker 2>a local, isolated population. It was built by highly specialized craftsmen,

847
00:41:52.480 --> 00:41:57.199
<v Speaker 2>essentially a drafted labor force imported from across the vast empire. Wow.

848
00:41:57.320 --> 00:41:59.960
<v Speaker 1>The artifacts also forced a massive shift in the timeline,

849
00:42:00.119 --> 00:42:01.159
<v Speaker 1>didn't they Yes.

850
00:42:02.000 --> 00:42:05.880
<v Speaker 2>Carbon dating and stylistic analysis of the artifacts indicated that

851
00:42:06.039 --> 00:42:09.159
<v Speaker 2>major construction at the site began around fourteen fifty, That.

852
00:42:09.280 --> 00:42:12.159
<v Speaker 1>Is, roughly eighty years before Pizarro and the Spanish arrived

853
00:42:12.159 --> 00:42:12.920
<v Speaker 1>in Peru.

854
00:42:12.800 --> 00:42:16.599
<v Speaker 2>Exactly so immediately Bingham's theory that Machi Picchu was a

855
00:42:16.639 --> 00:42:20.000
<v Speaker 2>desperate rebel fortress built to hide from the Spanish crumbles.

856
00:42:20.320 --> 00:42:22.039
<v Speaker 2>The timing is completely.

857
00:42:21.599 --> 00:42:24.840
<v Speaker 1>Wrong, and the rebel stronghold theory was dismantled entirely when

858
00:42:24.880 --> 00:42:28.360
<v Speaker 1>an American adventurer named Jean Savoy conducted expeditions in the

859
00:42:28.440 --> 00:42:29.719
<v Speaker 1>nineteen sixties.

860
00:42:29.679 --> 00:42:34.360
<v Speaker 2>Right Savoy definitively identified the real ruins of vil Cabamba

861
00:42:34.559 --> 00:42:37.119
<v Speaker 2>at a much lower, hotter site in the jungle culled

862
00:42:37.239 --> 00:42:38.239
<v Speaker 2>Espiritu Pampa.

863
00:42:38.320 --> 00:42:41.679
<v Speaker 1>This is my absolute favorite, deeply ironic twist in the

864
00:42:41.840 --> 00:42:46.159
<v Speaker 1>entire saga. Bingham actually visited Espiritu Pampa in nineteen eleven.

865
00:42:46.360 --> 00:42:48.840
<v Speaker 2>He walked right into the real Vilcabamba, but.

866
00:42:48.840 --> 00:42:52.000
<v Speaker 1>He dismissed it. He saw a few overgrown walls, decided

867
00:42:52.039 --> 00:42:53.920
<v Speaker 1>it was too hot and the mosquitoes were too bad,

868
00:42:54.239 --> 00:42:56.400
<v Speaker 1>and assumed it couldn't be the grand capital he was

869
00:42:56.440 --> 00:42:56.920
<v Speaker 1>looking for.

870
00:42:57.039 --> 00:42:59.840
<v Speaker 2>He failed to realize there were hundreds of buildings hidden

871
00:43:00.039 --> 00:43:01.039
<v Speaker 2>nder the jumble canopy.

872
00:43:01.119 --> 00:43:03.320
<v Speaker 1>He found exactly what he had spent his life searching for,

873
00:43:03.400 --> 00:43:05.280
<v Speaker 1>and he just walked away from it because it didn't

874
00:43:05.320 --> 00:43:06.159
<v Speaker 1>match his fantasy.

875
00:43:06.400 --> 00:43:10.320
<v Speaker 2>It is a tragic comedy of historical exploration. So the

876
00:43:10.400 --> 00:43:13.559
<v Speaker 2>forensics prove Machupchu is not ville Cabamba and it's not

877
00:43:13.599 --> 00:43:14.280
<v Speaker 2>a rebel base.

878
00:43:14.559 --> 00:43:18.840
<v Speaker 1>What about Bingham's most famous, most lucrative theory, the secret

879
00:43:18.840 --> 00:43:20.639
<v Speaker 1>Convent for the Virgins of the Sun.

880
00:43:21.800 --> 00:43:25.760
<v Speaker 2>That theory gets completely dismantled by modern osteology. A forensic

881
00:43:25.760 --> 00:43:29.679
<v Speaker 2>anthropologist named John Verano steps in to reevaluate the skeletons

882
00:43:29.880 --> 00:43:33.360
<v Speaker 2>that George Eaton had confidently declared mostly female back in

883
00:43:33.440 --> 00:43:34.519
<v Speaker 2>nineteen twelve.

884
00:43:34.400 --> 00:43:36.119
<v Speaker 1>And he applies modern tools.

885
00:43:36.440 --> 00:43:40.559
<v Speaker 2>Rono applies modern forensic tools and decades of comparative data

886
00:43:40.679 --> 00:43:44.599
<v Speaker 2>that simply did not exist during Eaton's time in nineteen twelve.

887
00:43:44.760 --> 00:43:47.639
<v Speaker 2>Determining the sex of a skeleton, particularly from a population

888
00:43:47.719 --> 00:43:52.199
<v Speaker 2>with different physiological baselines than Europeans, was highly speculative.

889
00:43:51.679 --> 00:43:53.320
<v Speaker 1>So Eton basically guessed wrong.

890
00:43:53.719 --> 00:43:56.800
<v Speaker 2>Verano analyzed the pelvic structures, the cranial ridges, and the

891
00:43:56.840 --> 00:44:00.679
<v Speaker 2>long bone robusticity. His results were definitive and undenied. The

892
00:44:00.719 --> 00:44:03.760
<v Speaker 2>bones belonged to both men and women in roughly equal numbers,

893
00:44:03.800 --> 00:44:06.840
<v Speaker 2>so much for the convent. Furthermore, analysis of the female

894
00:44:06.840 --> 00:44:11.280
<v Speaker 2>pelvic bones showed clear scarring and structural changes, indicating that

895
00:44:11.360 --> 00:44:14.840
<v Speaker 2>many of these women had borne children. The entire premise

896
00:44:14.880 --> 00:44:19.920
<v Speaker 2>of a chaste, isolated convent was instantly scientifically debunked.

897
00:44:20.000 --> 00:44:22.519
<v Speaker 1>There were no virgins of the Sun at Machipichu. It

898
00:44:22.559 --> 00:44:27.039
<v Speaker 1>was a mixed population of laborers, servants, and elites exactly so,

899
00:44:27.199 --> 00:44:29.199
<v Speaker 1>if the stones and the bones tell us what it wasn't.

900
00:44:29.440 --> 00:44:32.000
<v Speaker 1>How did we finally learn what it was? The final

901
00:44:32.039 --> 00:44:34.440
<v Speaker 1>puzzle piece didn't come from a shovel, and it didn't

902
00:44:34.440 --> 00:44:37.079
<v Speaker 1>come from a lab. It came from a library.

903
00:44:37.400 --> 00:44:41.000
<v Speaker 2>The definitive answer lay in a sixteenth century legal archive

904
00:44:41.159 --> 00:44:44.519
<v Speaker 2>in the city of Cusco. A Berkeley anthropologist and historian

905
00:44:44.599 --> 00:44:50.280
<v Speaker 2>named John Rowe was meticulously analyzing mundane Spanish colonial administrative records.

906
00:44:50.440 --> 00:44:53.519
<v Speaker 1>While reading through hundreds of pages of litigations, he discovered

907
00:44:53.519 --> 00:44:56.639
<v Speaker 1>a specific group of legal documents. I love this analogy.

908
00:44:56.760 --> 00:44:59.079
<v Speaker 1>It's like a historian finding a five hundred year old

909
00:44:59.159 --> 00:45:02.480
<v Speaker 1>property deed buried in a messy, modern filing cabinet, and

910
00:45:02.519 --> 00:45:05.920
<v Speaker 1>that single piece of paper completely rewrites world history. It

911
00:45:06.000 --> 00:45:08.920
<v Speaker 1>really is like that, what did these specific legal documents say?

912
00:45:09.159 --> 00:45:12.840
<v Speaker 2>There were transcripts of a land dispute lawsuit decades after

913
00:45:12.880 --> 00:45:16.760
<v Speaker 2>the conquest. The descendants of the Great Emperor Pachacuti were

914
00:45:16.840 --> 00:45:20.159
<v Speaker 2>suing the Spanish colonial government for the return of private

915
00:45:20.239 --> 00:45:24.679
<v Speaker 2>lands that they claimed rightfully belonged to the royal lineage.

916
00:45:24.280 --> 00:45:25.920
<v Speaker 1>Okay at property dispute, and.

917
00:45:26.000 --> 00:45:30.159
<v Speaker 2>The specific lands they were claiming, meticulously detailed in the

918
00:45:30.159 --> 00:45:33.800
<v Speaker 2>geographic descriptions of the lawsuit, were around a royal retreat

919
00:45:33.840 --> 00:45:35.280
<v Speaker 2>called Pichu Pichu.

920
00:45:35.599 --> 00:45:37.320
<v Speaker 1>The geography matched perfectly.

921
00:45:37.440 --> 00:45:40.960
<v Speaker 2>It was an exact match. When historians synthesized all this

922
00:45:41.079 --> 00:45:45.119
<v Speaker 2>new data, the Collis pottery proving an imported workforce, the

923
00:45:45.159 --> 00:45:48.920
<v Speaker 2>mixed gender bones debunking the convent, the construction data fourteen

924
00:45:49.039 --> 00:45:52.599
<v Speaker 2>fifty aligning perfectly with Pachacuti's reign, and finally, the written

925
00:45:52.639 --> 00:45:56.000
<v Speaker 2>legal documents claiming the land for Padjacuti's lineage. It all

926
00:45:56.000 --> 00:46:00.000
<v Speaker 2>converged on one undeniable factual conclusion, which is Machu Pachi.

927
00:46:00.000 --> 00:46:02.039
<v Speaker 2>It was a royal estate. It was a lavish country

928
00:46:02.039 --> 00:46:05.039
<v Speaker 2>palace built specifically for Emperor Patchakuti, a.

929
00:46:05.000 --> 00:46:08.360
<v Speaker 1>Fifteenth century vacation home for the emperor, And when you

930
00:46:08.440 --> 00:46:11.079
<v Speaker 1>factor in the climate logic of the region, the location

931
00:46:11.239 --> 00:46:15.519
<v Speaker 1>suddenly makes perfect practical sense. How so, the imperial capital

932
00:46:15.519 --> 00:46:18.719
<v Speaker 1>of Cusco six, at an altitude of over eleven thousand

933
00:46:18.760 --> 00:46:23.519
<v Speaker 1>feet in the Andean winter, it is bitterly cold, freezing

934
00:46:23.840 --> 00:46:27.400
<v Speaker 1>and harsh. True, Machupchu, even though it sits precariously on

935
00:46:27.480 --> 00:46:29.880
<v Speaker 1>a mountain peak, is actually down in the cloud forest

936
00:46:29.920 --> 00:46:32.679
<v Speaker 1>at an altitude of about eight thousand feet. It is

937
00:46:32.760 --> 00:46:33.920
<v Speaker 1>three thousand feet.

938
00:46:33.719 --> 00:46:35.199
<v Speaker 2>Lower than the capital so it's warmer.

939
00:46:35.400 --> 00:46:38.960
<v Speaker 1>It is significantly warmer, more humid, and lush. It was

940
00:46:39.000 --> 00:46:41.800
<v Speaker 1>a warm weather winter retreat for the emperor and his

941
00:46:41.920 --> 00:46:44.920
<v Speaker 1>court to escape the freezing andy and cold.

942
00:46:45.079 --> 00:46:48.880
<v Speaker 2>But this revelation often prompts a philosophical reaction. I want

943
00:46:48.920 --> 00:46:51.320
<v Speaker 2>to address the question you raised earlier when you asked

944
00:46:51.360 --> 00:46:54.559
<v Speaker 2>if building this incredibly impractical city on a cliff was

945
00:46:54.639 --> 00:46:58.599
<v Speaker 2>just foolishness. Now we know it was essentially a vacation home.

946
00:46:58.880 --> 00:47:00.599
<v Speaker 1>Yeah, I have to ask if if it was just

947
00:47:00.639 --> 00:47:03.599
<v Speaker 1>a winter vacation home for a wealthy emperor, does that

948
00:47:03.679 --> 00:47:05.679
<v Speaker 1>lessen the majesty of the site. Is it really just

949
00:47:05.679 --> 00:47:09.000
<v Speaker 1>the fifteenth century equivalent of a tech billionaire building an

950
00:47:09.000 --> 00:47:12.960
<v Speaker 1>incredibly expensive private island getaway. Doesn't reducing it to real

951
00:47:13.079 --> 00:47:15.440
<v Speaker 1>estate sort of ruin the mystical magic of the place.

952
00:47:15.880 --> 00:47:18.239
<v Speaker 2>Not if you view it accurately through the lens of

953
00:47:18.280 --> 00:47:21.760
<v Speaker 2>Incan cosmology. We cannot separate the political from the spiritual.

954
00:47:21.880 --> 00:47:22.400
<v Speaker 1>What do you mean?

955
00:47:22.599 --> 00:47:26.760
<v Speaker 2>As Peter Frost emphasizes, Padjacuti wasn't just a powerful politician

956
00:47:26.840 --> 00:47:30.360
<v Speaker 2>or a wealthy ceo. He was viewed by his people

957
00:47:30.840 --> 00:47:34.960
<v Speaker 2>as a literal, living, spiritual deity. He was the direct

958
00:47:35.000 --> 00:47:37.000
<v Speaker 2>descendant of the Sun god Ah.

959
00:47:37.039 --> 00:47:38.559
<v Speaker 1>So it's a divine property.

960
00:47:38.639 --> 00:47:41.199
<v Speaker 2>Therefore, a vacation home for a living god is not

961
00:47:41.280 --> 00:47:45.800
<v Speaker 2>just a place to relax, It is simultaneously a highly sacred,

962
00:47:46.199 --> 00:47:50.559
<v Speaker 2>active temple complex. The sheer difficulty of its construction was the.

963
00:47:50.519 --> 00:47:51.719
<v Speaker 1>Point it was a flex.

964
00:47:51.880 --> 00:47:54.960
<v Speaker 2>It was a monumental symbol of his absolute power over

965
00:47:55.079 --> 00:47:58.639
<v Speaker 2>human labor and nature, a private estate that functioned as

966
00:47:58.639 --> 00:48:01.639
<v Speaker 2>a profound religious center where the emperor could commune with

967
00:48:01.679 --> 00:48:03.960
<v Speaker 2>the Wakas and the Sun on behalf of the empire.

968
00:48:04.159 --> 00:48:07.519
<v Speaker 1>That makes profound sense. It's a divine palace, an intersection

969
00:48:07.599 --> 00:48:11.559
<v Speaker 1>of ultimate political power and religious devotion. But that realization

970
00:48:11.719 --> 00:48:14.840
<v Speaker 1>leads us to the final and perhaps most haunting question

971
00:48:14.960 --> 00:48:15.679
<v Speaker 1>of our deep dive.

972
00:48:15.800 --> 00:48:16.440
<v Speaker 2>What happened to it?

973
00:48:16.679 --> 00:48:19.599
<v Speaker 1>If this was the beloved, highly sacred royal retreat of

974
00:48:19.599 --> 00:48:22.079
<v Speaker 1>the most powerful man in the Americas, why on earth

975
00:48:22.159 --> 00:48:24.880
<v Speaker 1>was it completely abandoned to the jungle just ninety years

976
00:48:24.920 --> 00:48:25.719
<v Speaker 1>after it was built.

977
00:48:25.880 --> 00:48:30.960
<v Speaker 2>The timeline of Machu Picchu's active life is remarkably tragically short.

978
00:48:31.960 --> 00:48:35.320
<v Speaker 2>Construction began around fourteen fifty, and the site was largely

979
00:48:35.320 --> 00:48:38.679
<v Speaker 2>abandoned by fifteen forty. It functioned for less than a century.

980
00:48:38.760 --> 00:48:41.639
<v Speaker 1>It is a mere blink of an eye in historical.

981
00:48:41.280 --> 00:48:43.840
<v Speaker 2>Terms, and what is crucial to understand about its demise

982
00:48:44.320 --> 00:48:48.280
<v Speaker 2>is the nature of its death. Machu Picchu wasn't violently destroyed.

983
00:48:48.599 --> 00:48:51.840
<v Speaker 2>The Spanish conquistadors never found it. They never marched up.

984
00:48:51.800 --> 00:48:53.440
<v Speaker 1>That mountain, so they didn't sack it.

985
00:48:53.519 --> 00:48:56.119
<v Speaker 2>They didn't melt down as gold artifacts, they didn't smash

986
00:48:56.159 --> 00:48:59.639
<v Speaker 2>its sacred wakas, and they didn't tear down its walls

987
00:48:59.679 --> 00:49:00.679
<v Speaker 2>like they did in Cusco.

988
00:49:00.920 --> 00:49:03.679
<v Speaker 1>So if there was no battle, no fire, no invasion,

989
00:49:03.719 --> 00:49:04.639
<v Speaker 1>what happened to the people.

990
00:49:04.760 --> 00:49:07.960
<v Speaker 2>The city died a neglect, driven entirely by the systemic

991
00:49:08.000 --> 00:49:11.360
<v Speaker 2>collapse of the broader empire. Remember, Machu Pichu was a

992
00:49:11.440 --> 00:49:15.280
<v Speaker 2>hyper specialized luxury settlement. It was not self.

993
00:49:15.119 --> 00:49:16.840
<v Speaker 1>Sufficient, right, They couldn't grow their own food.

994
00:49:17.000 --> 00:49:22.039
<v Speaker 2>When Pizarro conquered Cusco and executed the emperor, the political, administrative,

995
00:49:22.039 --> 00:49:25.159
<v Speaker 2>and logistical heart of the Inca world simply stopped beating.

996
00:49:26.000 --> 00:49:29.760
<v Speaker 2>Pachikuti's royal kin group. His extended family known as a panaka,

997
00:49:30.039 --> 00:49:33.039
<v Speaker 2>who were responsible for living at and maintaining the estate

998
00:49:33.119 --> 00:49:36.000
<v Speaker 2>after his death, suddenly became completely isolated.

999
00:49:36.480 --> 00:49:38.960
<v Speaker 1>This goes right back to the food supply chain. We

1000
00:49:39.199 --> 00:49:42.280
<v Speaker 1>established that the seven hundred and fifty residents couldn't survive

1001
00:49:42.440 --> 00:49:45.559
<v Speaker 1>on the meager calories produced by the twelve acres of terraces.

1002
00:49:46.159 --> 00:49:49.920
<v Speaker 1>They were entirely dependent on a massive state sponsored logistical

1003
00:49:49.920 --> 00:49:52.760
<v Speaker 1>network bringing food up from the Urubamba floodplain.

1004
00:49:53.000 --> 00:49:56.880
<v Speaker 2>Exactly when the central government in Cusco fell, that massive

1005
00:49:56.880 --> 00:49:59.880
<v Speaker 2>supply chain broke instantly, and without food, without the or

1006
00:50:00.079 --> 00:50:02.519
<v Speaker 2>organizational might and the threat of force from the capital

1007
00:50:02.559 --> 00:50:05.599
<v Speaker 2>to maintain the flow of resources and labor, residents of

1008
00:50:05.639 --> 00:50:08.519
<v Speaker 2>Machu Picchu simply could not sustain themselves on that mountaintop.

1009
00:50:08.920 --> 00:50:11.400
<v Speaker 2>They began to starve. That is so dark they were

1010
00:50:11.400 --> 00:50:15.360
<v Speaker 2>forced to abandon the site justifind food. The specialized Coos

1011
00:50:15.440 --> 00:50:18.840
<v Speaker 2>craftsmen who had been imported to maintain the stonework likely

1012
00:50:18.880 --> 00:50:21.599
<v Speaker 2>packed up their tools and began the long, dangerous walk

1013
00:50:21.719 --> 00:50:24.039
<v Speaker 2>back to their home regions in the south, and as.

1014
00:50:23.920 --> 00:50:28.679
<v Speaker 1>They dispersed, the true apocalyptic horrors of the conquest set

1015
00:50:28.719 --> 00:50:32.119
<v Speaker 1>in across the Andes. The brutal warfare with the Spanish,

1016
00:50:32.440 --> 00:50:35.599
<v Speaker 1>the collapse of the agricultural systems leading to famine, and

1017
00:50:35.719 --> 00:50:39.199
<v Speaker 1>most devastatingly, the unchecked small talks epidemics.

1018
00:50:39.280 --> 00:50:43.039
<v Speaker 2>The combined forces wiped out over three hundred thousand Incas

1019
00:50:43.559 --> 00:50:47.119
<v Speaker 2>in a terrifyingly short period. The sheer scale of death

1020
00:50:47.280 --> 00:50:48.480
<v Speaker 2>was catastrophic, and.

1021
00:50:48.400 --> 00:50:50.960
<v Speaker 1>That massive death toll had a secondary effect right It

1022
00:50:51.000 --> 00:50:53.159
<v Speaker 1>erased the institutional memory of the empire.

1023
00:50:53.280 --> 00:50:55.960
<v Speaker 2>It did. Machu Picchu was not a public city. It

1024
00:50:56.000 --> 00:51:00.639
<v Speaker 2>was a private, highly exclusive, restricted royal estate. Very few

1025
00:51:00.679 --> 00:51:03.719
<v Speaker 2>commeons knew where it was, and only the highest privileged

1026
00:51:03.719 --> 00:51:06.480
<v Speaker 2>elites truly understood its significance.

1027
00:51:06.000 --> 00:51:08.079
<v Speaker 1>And they were the ones dying of the diseases.

1028
00:51:08.320 --> 00:51:11.320
<v Speaker 2>When those elites were systematically wiped out by war and plague,

1029
00:51:11.519 --> 00:51:14.000
<v Speaker 2>the memory of Patchikuti's grand estate died with them.

1030
00:51:14.280 --> 00:51:17.400
<v Speaker 1>It was literally erased from human memory within a generation.

1031
00:51:17.840 --> 00:51:21.559
<v Speaker 1>And once the humans left, nature immediately went on the offensive.

1032
00:51:22.440 --> 00:51:27.320
<v Speaker 2>The Urubamba cloud forest is intensely aggressive. Vegetation grows at

1033
00:51:27.320 --> 00:51:30.440
<v Speaker 2>an astonishing rate in that wet, tropical mountain environment.

1034
00:51:30.519 --> 00:51:31.760
<v Speaker 1>How fast are we talking.

1035
00:51:32.079 --> 00:51:34.920
<v Speaker 2>Within a few short years of the final caretaker leaving,

1036
00:51:34.960 --> 00:51:39.000
<v Speaker 2>the carefully manicured terraces would have been overrun with brush.

1037
00:51:39.079 --> 00:51:42.000
<v Speaker 2>Within a few decades, massive trees would have rooted in

1038
00:51:42.000 --> 00:51:45.920
<v Speaker 2>the plazas, their branches obscuring the granite walls, the moss

1039
00:51:46.000 --> 00:51:47.320
<v Speaker 2>covering the fine masonry.

1040
00:51:47.400 --> 00:51:51.119
<v Speaker 1>The jungle basically swallowed the city hull, rendering it completely

1041
00:51:51.119 --> 00:51:52.840
<v Speaker 1>invisible from the valley below.

1042
00:51:52.800 --> 00:51:54.559
<v Speaker 2>Just completely erased it from the map.

1043
00:51:54.679 --> 00:51:58.360
<v Speaker 1>It is a chilling realization. A place that required millions

1044
00:51:58.360 --> 00:52:01.400
<v Speaker 1>of hours of intense human life labor to construct, a

1045
00:52:01.440 --> 00:52:04.199
<v Speaker 1>place that housed a living god and tracked the movements

1046
00:52:04.199 --> 00:52:07.199
<v Speaker 1>of the cosmos, was just forgotten. It vanished.

1047
00:52:07.360 --> 00:52:08.360
<v Speaker 2>It really makes you think.

1048
00:52:08.480 --> 00:52:10.719
<v Speaker 1>It forces you to wonder about the fragility of our

1049
00:52:10.760 --> 00:52:14.199
<v Speaker 1>own modern systems. Could something like that happen today? Could

1050
00:52:14.199 --> 00:52:17.320
<v Speaker 1>a massive piece of our infrastructure, a whole city, just

1051
00:52:17.440 --> 00:52:20.960
<v Speaker 1>vanish into the landscape if the global supply chain suddenly broke.

1052
00:52:21.199 --> 00:52:25.079
<v Speaker 2>It is a stark reminder of how deeply vulnerable, complex,

1053
00:52:25.400 --> 00:52:30.119
<v Speaker 2>hyper specialized societies truly are when their underlying logistical networks fail.

1054
00:52:31.000 --> 00:52:33.400
<v Speaker 2>But in the specific case of Machu Picchu, there is

1055
00:52:33.440 --> 00:52:37.719
<v Speaker 2>a profound, beautiful irony. What's that the aggressive cloud forest

1056
00:52:37.719 --> 00:52:40.320
<v Speaker 2>that swallowed the city and erased it from memory was

1057
00:52:40.360 --> 00:52:41.719
<v Speaker 2>actually its ultimate savior.

1058
00:52:41.880 --> 00:52:45.960
<v Speaker 1>Wow? Think about that. The jungle preserved it because if

1059
00:52:45.960 --> 00:52:47.840
<v Speaker 1>the Spanish had known about it, if they had found

1060
00:52:47.840 --> 00:52:50.559
<v Speaker 1>it in fifteen forty it wouldn't exist for us to

1061
00:52:50.599 --> 00:52:51.440
<v Speaker 1>marvel at today.

1062
00:52:51.639 --> 00:52:54.599
<v Speaker 2>There is no question if the conquistadors had marched up

1063
00:52:54.639 --> 00:52:57.639
<v Speaker 2>that mountain path, Marchu Pichu would likely look like much

1064
00:52:57.639 --> 00:53:01.679
<v Speaker 2>of modern Gustco today. Tinam part It's perfect mortarless granite stone,

1065
00:53:01.719 --> 00:53:04.960
<v Speaker 2>torn down, a repurposed to build colonial Spanish churches. Its

1066
00:53:05.000 --> 00:53:08.599
<v Speaker 2>sacred wakas smashed to gravel. Its intricate terrace is destroyed.

1067
00:53:08.960 --> 00:53:12.119
<v Speaker 2>Its silent abandonment, it's descended to the protective of scuring

1068
00:53:12.199 --> 00:53:14.800
<v Speaker 2>embrace of the jungle was the only reason it survived

1069
00:53:14.840 --> 00:53:16.599
<v Speaker 2>intact for four centuries.

1070
00:53:16.559 --> 00:53:20.519
<v Speaker 1>And the irony continues even today. The documentary points out

1071
00:53:20.519 --> 00:53:23.639
<v Speaker 1>that right now, the modern caretakers and archaeologists at Machi

1072
00:53:23.719 --> 00:53:28.360
<v Speaker 1>Picchu have to wage a constant, daily, exhausting war against

1073
00:53:28.400 --> 00:53:31.599
<v Speaker 1>that very same vegetation just to keep the ruins visible.

1074
00:53:31.760 --> 00:53:33.920
<v Speaker 2>They are constantly cutting back the jungle for the three

1075
00:53:34.039 --> 00:53:36.119
<v Speaker 2>hundred thousand tourists who visit every year.

1076
00:53:36.440 --> 00:53:39.199
<v Speaker 1>We are actively fighting the very force of nature that

1077
00:53:39.280 --> 00:53:41.559
<v Speaker 1>saved the city, just so we can look at it.

1078
00:53:41.559 --> 00:53:45.679
<v Speaker 2>It is a profound daily testament to how aggressively and

1079
00:53:45.719 --> 00:53:49.679
<v Speaker 2>swiftly nature will reclaim human achievements the exact moment we

1080
00:53:49.719 --> 00:53:50.920
<v Speaker 2>stop actively.

1081
00:53:50.559 --> 00:53:52.960
<v Speaker 1>Maintaining them, which brings us to the end of our

1082
00:53:53.000 --> 00:53:56.400
<v Speaker 1>incredible journey. Today, let's summarize the ground we've covered. We

1083
00:53:56.519 --> 00:53:59.119
<v Speaker 1>started in the blood and tragedy of a brutal conquest

1084
00:53:59.239 --> 00:54:01.119
<v Speaker 1>that toppled a massive empire.

1085
00:54:01.360 --> 00:54:04.920
<v Speaker 2>We followed a complex, fame hungry Yale explorer as he

1086
00:54:05.000 --> 00:54:07.719
<v Speaker 2>stumbled up a muddy mountain path the claim of discovery

1087
00:54:07.719 --> 00:54:08.679
<v Speaker 2>that wasn't really his.

1088
00:54:09.079 --> 00:54:12.440
<v Speaker 1>We marveled at the sheer, gravity defying genius of ancient

1089
00:54:12.480 --> 00:54:17.239
<v Speaker 1>engineers and stonemasons who manipulated physics, water, and seismic energy

1090
00:54:17.440 --> 00:54:19.320
<v Speaker 1>without the use of iron or wheels.

1091
00:54:19.639 --> 00:54:23.559
<v Speaker 2>And finally we saw how modern forensic scientists and historians

1092
00:54:23.599 --> 00:54:27.320
<v Speaker 2>pieced together the scattered clues, the pots, the bones, the

1093
00:54:27.360 --> 00:54:31.719
<v Speaker 2>old colonial lawsuits to finally give Emperor Pachacuti his beloved

1094
00:54:31.800 --> 00:54:32.440
<v Speaker 2>estate back.

1095
00:54:32.800 --> 00:54:35.840
<v Speaker 1>It is a narrative that constantly forces us to reevaluate

1096
00:54:35.840 --> 00:54:40.119
<v Speaker 1>our assumptions, to question the established romantic myths, and to

1097
00:54:40.360 --> 00:54:43.159
<v Speaker 1>demand rigorous proof of what we think we know about

1098
00:54:43.159 --> 00:54:43.599
<v Speaker 1>the past.

1099
00:54:43.719 --> 00:54:45.679
<v Speaker 2>It's why history is a living discipline.

1100
00:54:45.760 --> 00:54:48.000
<v Speaker 1>And I want to connect this directly back to you

1101
00:54:48.119 --> 00:54:50.800
<v Speaker 1>listening to this deep dive right now. The story of

1102
00:54:50.840 --> 00:54:53.639
<v Speaker 1>Machu Picchu challenges all of us to think deeply about

1103
00:54:53.639 --> 00:54:56.119
<v Speaker 1>the physical legacy we leave behind when we are gone.

1104
00:54:56.199 --> 00:54:59.920
<v Speaker 1>That's a great point that Inca left absolutely no written record.

1105
00:55:00.440 --> 00:55:03.360
<v Speaker 1>They had no books, no scrolls, no carved languages to

1106
00:55:03.400 --> 00:55:06.719
<v Speaker 1>tell us their names or their dreams. But their profound

1107
00:55:06.920 --> 00:55:11.320
<v Speaker 1>scientific understanding of geology, their masterful manipulation of water, and

1108
00:55:11.400 --> 00:55:15.519
<v Speaker 1>their brilliant earthquake resistant architecture speaks louder than words ever

1109
00:55:15.559 --> 00:55:19.159
<v Speaker 1>could across five centuries. Their stones tell their story.

1110
00:55:19.400 --> 00:55:22.280
<v Speaker 2>They engineered a dialogue with the Earth itself, a physical

1111
00:55:22.360 --> 00:55:25.239
<v Speaker 2>legacy that ultimately outlasted the empire that built it.

1112
00:55:25.559 --> 00:55:28.440
<v Speaker 1>They really did. And before we sign off, I want

1113
00:55:28.440 --> 00:55:31.679
<v Speaker 1>to leave you with one final provocative thought to mullover

1114
00:55:31.800 --> 00:55:34.440
<v Speaker 1>as you go about your day. We just spent an

1115
00:55:34.519 --> 00:55:37.400
<v Speaker 1>hour learning that the true identity of one of the greatest,

1116
00:55:37.519 --> 00:55:41.960
<v Speaker 1>most mysterious archaeological wonders on Earth wasn't unlocked by some

1117
00:55:42.199 --> 00:55:45.480
<v Speaker 1>swashbuckling adventurer dodging boulders in a jungle temple.

1118
00:55:45.719 --> 00:55:46.440
<v Speaker 2>No it wasn't.

1119
00:55:46.559 --> 00:55:50.000
<v Speaker 1>The truth was unlocked by a scientist analyzing forgotten dusty

1120
00:55:50.039 --> 00:55:53.280
<v Speaker 1>pots in a Yale basement. And by a historian dusting

1121
00:55:53.320 --> 00:55:57.400
<v Speaker 1>off a boring sixteenth century property lawsuit in a library archive.

1122
00:55:57.920 --> 00:56:00.000
<v Speaker 1>The truth wasn't buried in the dirt, It was high

1123
00:56:00.159 --> 00:56:02.920
<v Speaker 1>in plain sight, in cardboard boxes and filing cabinets.

1124
00:56:03.119 --> 00:56:05.920
<v Speaker 2>Is a potent reminder that the archives hold just as

1125
00:56:05.920 --> 00:56:08.960
<v Speaker 2>many undiscovered frontiers as the jungles exactly.

1126
00:56:09.039 --> 00:56:12.639
<v Speaker 1>It makes you wonder what other incredible, world changing lost

1127
00:56:12.679 --> 00:56:17.320
<v Speaker 1>cities or massive paradigm shifting historical truths are currently sitting

1128
00:56:17.440 --> 00:56:20.360
<v Speaker 1>quietly in a cardboard box in a museum storage room

1129
00:56:20.440 --> 00:56:20.840
<v Speaker 1>right now.

1130
00:56:21.239 --> 00:56:24.119
<v Speaker 2>What mysteries are just waiting for the right forensic tool

1131
00:56:24.280 --> 00:56:27.440
<v Speaker 2>or the right curious mind to finally ask the right question.

1132
00:56:27.840 --> 00:56:28.440
<v Speaker 2>It is a.

1133
00:56:28.400 --> 00:56:31.840
<v Speaker 1>Deeply fascinating question to ponder. Thank you so much for

1134
00:56:31.960 --> 00:56:34.960
<v Speaker 1>joining us on this deep dive. Keep asking questions, keep

1135
00:56:35.000 --> 00:56:37.119
<v Speaker 1>looking closely at the world around you, and we will

1136
00:56:37.119 --> 00:56:38.199
<v Speaker 1>catch you next time.
