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Speaker 1: I want you to do something for me.

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Speaker 2: Oh setting the stakes early today, Yeah, I am.

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Speaker 1: So the next time you step outside, I want you

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to look up at the vast, clear, blue sky, right,

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I mean really look at it. Because we're so conditioned,

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right from the time we're tiny kids, to think of

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the sky as this infinite empty window.

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Speaker 2: Just looking straight out into the void of space exactly.

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Speaker 1: We just assume we're staring into a totally transparent abyss.

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But I want you to imagine, just for a second,

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that you aren't looking through an empty window at all.

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Speaker 2: Which is a terrifying thought, it really is.

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Speaker 1: Imagine that you're actually looking through a massive, curved, basically

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imperceptible lens. Yeah, a lens that actively bends and edits

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and distorts absolutely everything you see. What if the sky

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above you isn't avoid but like the ultimate reality altering filter.

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Speaker 2: It completely shifts your whole orientation to the physical world.

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Speaker 1: It totally messes with you.

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Speaker 2: It does because the moment you stop seeing the atmosphere

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as just well, empty space and start recognizing it as

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an active, highly disruptive medium, the whole geometry of how

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you experience reality just fundamentally changes.

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Speaker 1: Yeah, you realize you've never actually seen the universe clearly,

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not once.

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Speaker 2: No, you've only ever seen the atmosphere's highly processed version

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of it.

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Speaker 1: And that profound, somewhat unsettling shift in perspective is exactly

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what we are getting into today. Welcome to thrilling threads.

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Speaker 2: Glad to be here.

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Speaker 1: We have a massive stack of research, historical accounts, and

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theoretical physics papers to get through today.

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Speaker 2: It's a big one.

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Speaker 1: It is all centering around what we're going to call

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the glass sky theory. We are going to examine how

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our atmosphere acts as a literal physical lens, bending, bending reality,

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warping light, and maybe, depending on how far down this

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rabbit hole we go, even shaping the actual boundaries of

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human perception itself.

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Speaker 2: I mean, it's an exploration that requires us to span

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quite a few disciplines today.

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Speaker 1: Oh yeah, the map.

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Speaker 2: We really have to start with agient cosmology right, then

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move through the actual rigorous mechanics of atmospheric.

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Speaker 1: Physics, fluid dynamics, all that.

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Speaker 2: Fun stuff exactly, and eventually we're going to arrive at

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modern digital philosophy.

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Speaker 1: Because we are trying to figure out a very profound

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boundary condition here, like, where exactly does human perception end

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and where does raw, unfiltered reality actually begin.

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Speaker 2: Which is the ultimate question.

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Speaker 1: When I first started digging into the sources for this one,

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my immediate visceral reaction was just it gives off intense

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Truman Show vibes.

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Speaker 2: Oh, absolutely right.

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Speaker 1: It's this unsettling but also incredibly thrilling idea that someone

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or something is basically running quality control on reality.

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Speaker 2: Itself, like a giant dome.

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Speaker 1: Exactly. It's the sensation of being inside this massive, perfectly

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constructed dome where the sky is just projecting whatever we're

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supposed to see.

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Speaker 2: Well, it's a very natural human reaction to feel that

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sense of artificiality.

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Speaker 1: You feel like you're being tricked, you do.

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Speaker 2: Especially when you realize just how aggressively our vision is

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being manipulated by the environment. But to ground this, we

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have to recognize that the atmosphere's visual manipulations aren't malicious, right.

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Speaker 1: It's not actually a Hollywood set design.

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Speaker 2: No, not at all. They are the strict mathematical result

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of complex fluid dynamics, temperature gradients, and well light refraction.

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Speaker 1: So the goal of our discussion is to strip away

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all those assumptions we make every single time we open

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our eyes.

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Speaker 2: We need to understand the physical mechanics of this giant

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lens we live under.

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Speaker 1: Before we can even begin to unpack the philosophical stuff precisely.

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So let's start with the historical baseline, then, because long

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before we had satellites or telescopes or any formal understanding

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of fluid dynamics, humans were looking up at the exact

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same sky that we see today, exact same one. But

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they didn't see a mixture of you know, seventy eight

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percent nitrogen and twenty one percent oxygen.

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Speaker 2: No, they definitely did not.

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Speaker 1: For thousands of years, across completely disconnected cultures, people looked

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up and they saw a solid structural ceiling.

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Speaker 2: Yeah, they believed the sky was a physical vault holding

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back the literal chaos of the cosmos.

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Speaker 1: And if you look at the historical texts and comparative

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mythology in our research, this wasn't just some localized superstition, No,

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it was global.

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Speaker 2: It was a globally accepted architectural model of the universe.

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Speaker 1: Take the ancient Hebrew tradition in the Book of Genesis,

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for example, right, the Rakiya, exactly the concept of the Reichia,

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which is usually translated into English as the firmament.

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Speaker 2: In the etymology, that word is fascinating. It implies something.

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Speaker 1: Solid, like something beaten out or hammered.

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Speaker 2: Flat, Yeah, like a giant sheet of metal.

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Speaker 1: It was described as this vast solid divider that literally

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held back the waters of heaven.

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Speaker 2: Because they believed that without this structural physical dome, the

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Earth would just be consumed by celestial oceans.

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Speaker 1: Which is such a wild mental image. And you see

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variations of that EXAs same mechanical structure everywhere all over

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the world. Like in Egyptian mythology, you have the goddess

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nut her entire body, which was supposedly studded with stars,

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was believed to be arched protectively over the Earth to

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form the sky.

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Speaker 2: It's a deeply poetic image.

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Speaker 1: It really is this divine mother figure acting as a

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literal physical shield.

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Speaker 2: And then you go up north to Norse mythology and

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the imagery gets well incredibly visceral.

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Speaker 1: Oh yeah, the Norse did not mess around.

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Speaker 2: No, they did not. The gods supposedly crafted the celestial

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ceiling out of the skull of a primordial giant named Emir, just.

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Speaker 1: Took his head and made a roof out of it.

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Speaker 2: Exactly. They took this massive, solid bone structure and just

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hammered it into place over the earth to contain the

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realm of men.

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Speaker 1: This raises a really critical anthropological question, though, which is

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what I find so compelling about putting all these early

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texts together. Across vast oceans, across centuries of time, completely

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disconnected cultures all came to the exact same Cosmo.

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Speaker 2: Conclusion that the sky is a barrier.

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Speaker 1: Yes, that it's a structure. It is not empty space.

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Speaker 2: Right?

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Speaker 1: Why did civilizations that never spoke to one another, living

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in completely different climates all agree that there was a

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solid dome over their heads?

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Speaker 2: Well? See, I have to push back on the idea

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that this implies some deeper physical understanding on their part.

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Speaker 1: Really, you don't think they were onto something.

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Speaker 2: Aren't we just looking at the limits of early human

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psychology here?

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Speaker 1: How do you mean?

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Speaker 2: Well, humans are fundamentally storytellers, right, and we are terrified

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of the unknown.

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Speaker 1: Oh for sure.

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Speaker 2: We look up, we see this vast, terrifying empty space,

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and we just don't understand it, so we fill it

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with familiar concepts.

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Speaker 1: Like hammered bowls and giant skulls.

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Speaker 2: Exactly star studded goddesses. Is it really that they perceived

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a boundary or is it just that a ceiling is

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a very comforting architectural concept for a species that lives

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in caves and huts.

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Speaker 1: Okay, that's a fair skepticism, But the sources we're analyzing

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suggest we shouldn't just dismiss them as relying on psychological

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comfort blankets.

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Speaker 2: You think they had real data.

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Speaker 1: Well, we tend to look back at Bronze Age and

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Iron Age peoples and assume they just invented fairy tales

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to fill in the blanks, right, But the argument here

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is that these ancient peoples were actually conducting rigorous, albeit

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early observational science.

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Speaker 2: Observational sciences.

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Speaker 1: Yeah, they were living intimately with the elements. They spent

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their entire lives observing the horizon, the water, the sky,

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tracking celestial bodies exactly with incredible precision too. And during

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those observations they saw light behaving in ways that totally

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defied the logic of empty space.

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Speaker 2: What kind of behavior are we talking about here, because

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if you mean basic heat shimmers in a desert, no, no, no,

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I don't know if a blurry horizon instantly translates to

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the skies made of a giant's.

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Speaker 1: Skull, it goes much deeper than a simple heat shimmer.

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They were observing complex mirages over huge bodies of water

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or across vast plains.

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Speaker 2: Where distant islands or mountains seem to literally hover in

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the air, yes.

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Speaker 1: Or even appear completely inverted upside down. They observed a

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literal physical bending of their reality.

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Speaker 2: Okay, I see where you're going with.

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Speaker 1: This right now, put yourself in their shoes for a second.

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You do not have a working model of quantum mechanics,

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definitely not, or the refractive index of gases. You do

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not know that air can have different densities based on temperature.

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Speaker 2: To me, in that era, air is just nothing exactly.

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Speaker 1: It's wind maybe, but it's not a lens. So if

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you see a mountain flipped upside down in the sky,

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or a distant shoreline stretched into this towering wall of ice,

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what is the most logical scientific conclusion you can reach

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with the tools you have.

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Speaker 2: I suppose if light is bending and bouncing around, it

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must be bouncing off something physical.

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Speaker 1: Yes, they deduced that the sky itself must be made

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of a reflective glass like material.

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Speaker 2: Oh wow.

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Speaker 1: They were interpreting the extreme visual distortion of reality as

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empirical proof of a phishysic dome.

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Speaker 2: They weren't writing fiction. They were documenting the earliest known

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observations of severe atmospheric refraction.

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Speaker 1: Exactly. Okay, that actually tracks. If I'm an ancient navigator

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and I see an island dissolve into thin air as

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I sail toward it, I'm not thinking about thermal layers.

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Speaker 2: Yeah, you're thinking you just bumped into the edge of

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the ter area.

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Speaker 1: Literally, they saw the optical illusion, but they attributed it

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to a physical object like a crystal dome, because the

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concept of air bending light was just fundamentally beyond their paradigm.

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Speaker 2: Sucisely, they noticed the universe hinting early on that a

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massive lens was already in place.

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Speaker 1: They just misidentified the material of the lens.

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Speaker 2: Yeah. And the transition from those ancient mythic interpretations of

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distorted light directly to the hard modern physics of atmospheric.

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Speaker 1: Illusions, that's where it gets crazy.

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Speaker 2: That is where the true mechanics of the glass sky

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become undeniable. We have to look at the extremes of

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what this atmospheric lens is actually capable of.

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Speaker 1: Let's get into the mechanics of the mirage then, because

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when you read the actual physics of this, it genuinely

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feels like the atmosphere is actively hallucinating.

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Speaker 2: It really does.

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Speaker 1: We aren't talking about the standard highway mirage where the

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asphalt looks like it has a puddle of water on it.

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Speaker 2: No, we are looking at the mechanics of the superior.

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Speaker 1: Mirage, specifically the phenomenon historically known as the Fatta Morgana.

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Speaker 2: Right, named after the sorceress Morgan le Fay from the Arthurian.

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Speaker 1: Legends, because the illusions were so complex and so terrifying

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that sailors literally believed they were dark magic.

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Speaker 2: Dark magic designed to lure ships right onto the.

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Speaker 1: Rocks, which makes total sense if you're out there on

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the water. To understand how a Fotta Morgana operates, we

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have to look at the refractive index of our atmosphere.

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Speaker 2: And specifically how temperature manipulates that index.

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Speaker 1: Right, So break down the refractive index for us. Because

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light travels at a constant speed, right, the speed of

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light is the universal speed limit.

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Speaker 2: Well, the speed of light is constant in a perfect vacuum. Ah,

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but our atmosphere is not a vacuum. It's a fluid

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medium packed with gas molecules. When light enters our atmosphere,

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it slows down slightly as it interacts with those molecules.

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The denser the medium, the slower the light travels. Got

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it now. Under normal meteorological conditions, the atmosphere is warmest

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at the surface.

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Speaker 1: Of the Earth because the ground absorbs the sun's heat exactly.

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Speaker 2: And the air gets progressively colder and thinner the higher

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up you go in.

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Speaker 1: Altitude, right, which is why there's snow on top of mountains.

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Speaker 2: Correct. But a photom organa requires a very specific inverted

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weather phenomenon called a thermal inversion. A thermal inversion, yeah,

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This occurs when a layer of significantly warmer air pushes

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in and rests on top of a layer of much colder,

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denser air near the.

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Speaker 1: Surface, so it's completely backward.

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Speaker 2: Totally backward. This happens quite frequently over the ocean or

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over large ice shelves, where the water or the ice

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cools the air immediately above it, while.

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Speaker 1: The ambient air higher up stays warm, so you essentially

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have this dense cold blanket of air trapped underneath a lighter,

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warmer blanket of air.

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Speaker 2: Exactly, and the boundary between those two distinct layers of

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air acts incredibly similar to a pane.

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Speaker 1: Of glass or a camera lens.

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Speaker 2: Yes, When light from an object, let's say, a distant

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ship position far out on the horizon, travels toward your eye,

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it doesn't just pass straight through these layers.

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Speaker 1: Because the cold air is significantly denser than the warm

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air above it.

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Speaker 2: Right right, so it has a higher refractive index. As

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the light wave travels through the warm air and hits

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the boundary of the cold air, it aggressively bends, It refracts,

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It refracts deeply downwards toward the colder, denser medium.

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Speaker 1: Okay, hold on, let me make sure I'm mapping the

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geometry of this correctly in my head.

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Speaker 2: Go for it.

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Speaker 1: The ship is out on the ocean, the light bounces off,

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the ship, travels through the air, hits this weird temperature boundary,

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and the light path physically bends downward toward my eye

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standing on the shore.

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Speaker 2: That's the path, yes.

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Speaker 1: But my eye, or rather my brain's visual processing center,

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doesn't note that the light just took a curve of detour. Right.

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Speaker 2: That is the crucial physiological mechanism at play here.

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Speaker 1: Right. Because human visual perception evolved over millions of years

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to assume that light travels in a perfectly straight.

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Speaker 2: Line, we did not have the biological hardware to instinctively

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calculate the refractive curvature of light.

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Speaker 1: So your eye receives this light that has just been

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bent steeply downwards from the sky.

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Speaker 2: And your brain, operating on its standard assumption, traces that

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incoming trajectory back in a perfectly.

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Speaker 1: Straight line, which means my brain projects the image of

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the ship up into the sky.

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Speaker 2: Exactly along the straight path it assumes the light came from.

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Speaker 1: That is wild. The result is that the distant object

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is visually lifted straight up into the arab of the horizon.

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Speaker 2: This is called looming looming. But a true fatam organa

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is much more chaotic than a simple looming effect. Why

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is that because the thermalin version layer isn't a perfect

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static pane of glass. It's an undulating, dynamic fluid.

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Speaker 1: It's moving around.

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Speaker 2: Yeah, it has ripples way and multiple microlayers of varying temperatures.

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So as the light passes through this chaotic thermal ducting,

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it basically gets fractured.

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Speaker 1: So it's not just lifting the image, it's shredding it

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and reassembling it exactly.

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Speaker 2: The complex refraction can stretch the object vertically, which is

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called towering, making a small flat boat look like a

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massive skyscraper. Wow. And if the light bends in a

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specific parabolic arc through the temperature gradient, it can even

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flip the object completely upside down.

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Speaker 1: You're kidding.

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Speaker 2: No, You will often see a Fata Morgana where a

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ship is lifted into the sky, towering to ten times

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its height, and an inverted, upside down copy of the

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ship is stacked directly on top of it.

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Speaker 1: When you look at the historical case studies of this happening,

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the implications are staggering.

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Speaker 2: They really are.

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Speaker 1: It shows just how completely at the mercy of this

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atmospheric lens we are. Let's dig into the nineteen thirteen

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Arctic expedition.

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Speaker 2: Oh, the croker Land expedition.

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Speaker 1: Yes, specifically the Hunt for croker Land, because this is

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like the ultimate exams sample of the atmosphere conning season

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scientific observers.

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Speaker 2: It's a fascinating study in both atmospheric physics and human psychology.

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Speaker 1: So set the stage for us what happened in nineteen thirteen, Who.

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Speaker 2: Actually starts In nineteen oh six, the famous Arctic explorer

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Robert Peary claimed he saw a massive undiscovered land mass

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far off the coast of Ellesmere Island in the High Arctic.

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Speaker 1: Needn't just see a blur, no.

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Speaker 2: He described towering peaks and deep valleys. He named croker

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Land after one of his financial backers.

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Speaker 1: Classic explorer move, very classic.

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Speaker 2: So seven years later, in nineteen thirteen, Donald McMillan leads

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a massive, heavily funded expedition backed by the American Museum

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of Natural History, to go map this new continent.

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Speaker 1: And these aren't amateurs. These are men who navigate by sextant,

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who understand the ice, who have spent their entire lives

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looking at horizons right there are professionals. They trek for

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days across the brutal sea ice of the Polar Ocean.

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And the craziest part of the story is that they

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see it too.

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Speaker 2: They all saw it.

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Speaker 1: McMillan and his crew look out toward the northwest, and

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they clearly see a massive land mass on the horizon, hills, valleys,

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snow capped peaks.

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Speaker 2: They are so convinced by the sensory input hitting their

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retinas that they plot a course and march directly toward it.

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Speaker 1: Which I mean is a completely rational response.

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Speaker 2: Totally if you're operating under the assumption that the medium

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between you and the horizon is transparent and neutral, you

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trust your eyes.

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Speaker 1: But they keep marching, and the angle of the sun

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changes as the day progresses.

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Speaker 2: And the thermal inversion layer over the ice begins to

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heat up and dissipate.

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Speaker 1: And as McMillan watches this massive towering continent, a land

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mass that raised hundreds of thousands of dollars in funding

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and sent men marching across deadly sea, ice literally dissolves

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into the air.

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Speaker 2: It just vanishes.

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Speaker 1: They were chasing a ghost, a ghost projected by the

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refractive index of cold air.

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Speaker 2: They spent resources, time and risked their lives marching toward

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a mirage of a distant ice shelf. It was actually

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located hundreds of miles away, just.

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Speaker 1: Bent over the curvature of the Earth by the atmosphere.

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Speaker 2: It is a devastating realization for an explorer to understand

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that the very geometry of the world you are trying

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to map is completely fluid.

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Speaker 1: I can't even imagine.

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Speaker 2: And this phenomenon is not relegated to the frozen extremes

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of the early twentieth century either.

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Speaker 1: No, the meteorological conditions required for extreme refraction can happen

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over modern urban centers as well, given the right humidity

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and temperature parameters.

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Speaker 2: Which brings us to twenty eleven.

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Speaker 1: Right Hangzu, China. This is probably one of the most

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widely documented modern examples because it was captured on video

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by thousands of people simultaneously.

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Speaker 2: It was everywhere.

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Speaker 1: You have residents standing near the Shinan River after a

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period of heavy rain and high humidity, so.

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Speaker 2: The river cools the air immediately above the water, while

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the ambient air remains.

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Speaker 1: Warm, a perfect thermal inversion.

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Speaker 2: Exactly, and suddenly, looking out over the river, they witness

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an entire city suspended in the clouds.

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Speaker 1: It's unbelievable. The footage is remarkable. You can clearly see

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the distinct outlines of modern skyscrapers, residential blocks, and streets

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completely detached from the ground, just hovering in the mist.

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Speaker 2: It looked exactly like a digitally rendered Sci fi landscape

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dropping out of the sky.

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Speaker 1: The atmosphere basically took the light bouncing off a city

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that was miles away, bent it through this humid thermal duct,

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and projected a high definition copy of the skyline directly

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into the clouds right over the river. And there are

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incredible photographs from places like the coastline of Cornwall in

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the UK recently showing massive multi ton cargo ships literally

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hovering hundreds of feet above the ocean horizon line.

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Speaker 2: The water line is clearly visible beneath them.

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Speaker 1: They are just floating in the sky.

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Speaker 2: The psychological and cultural impact of these optical mechanisms cannot

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be overstated.

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Speaker 1: I mean, imagine being a sailor in the sixteenth century

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navigating the turbulent waters off Cornwall and you look through

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your spyglass to see an enormous galleon floating upside down

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in the cloud. It's completely silent.

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Speaker 2: It becomes instantly clear why legends of phantom ships like

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the flying Dushmen or myths of sky dwelling gods became

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so deeply entrenched in human culture.

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Speaker 1: They were attempting to build a rational framework around a

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totally irrational visual input exactly. But the truly unsettling part

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and the pivot point of our whole discussion today is

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that in all of these scenarios, from Crokerland to the

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Cornwall ghost ships, the human eye is working perfectly.

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Speaker 2: There's no hallucination right.

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Speaker 1: There's no mass hysteria or cognitive defect. The eye is

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dutifully recording the exact photons that hit it.

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Speaker 2: It is the physics of the world that are actively deceptive.

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Speaker 1: The atmosphere is just taking reality, copying it, stretching it,

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and pasting it into the sky.

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Speaker 2: And if we extrapolate from those extreme anomalies, it forces

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us to confront a much more pervasive question, which is

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if the atmosphere, under the right temperature conditions possesses the

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optical power to effortlessly lift an entire city skyline into

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the clouds.

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Speaker 1: Or conjure a non existent mountain range out of thin

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air to fool seasoned explorers, what.

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Speaker 2: Exactly is it doing to the rest of our visual input?

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Oh wow, in these moments of extreme refraction, we realize

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the sky isn't a transparent window looking out. It acts

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as a highly distorted, dynamic mirror reflecting the Earth back

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onto itself.

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Speaker 1: That thought process is exactly what derailed me when I

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was prepping for this oh tavy because we look at

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a fotta morgana. We take a picture and we say, wow,

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look at that crazy fluke of nature.

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Speaker 2: We canpartmentalize it.

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Speaker 1: We totally brush off the extreme mirages as rare glitches.

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But the fundamental physics of the atmosphere don't just turn

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off when the thermal inversion dissipates.

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Speaker 2: No, the air is still there, the.

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Speaker 1: Molecules are still there, the refractive index is always active.

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Speaker 2: The atmosphere never stops being a lens.

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Speaker 1: Which leads us to the most fundamental realization of atmospheric physics.

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00:20:54,240 --> 00:20:56,119
We have never actually seen.

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Speaker 2: Raw reality, not ones in human history. Think about that,

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every photon of light that enters your eye from the sky,

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every sunset, the color of the daytime sky, the light

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from every distant star has been fundamentally altered, scattered, or

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delayed by a dense layer of gas before your brain

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is allowed to process it.

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Speaker 1: The atmosphere is basically the universe is mandatory processing filter.

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Speaker 2: It really is.

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Speaker 1: Lift breakdown how this filter operates on a daily, mundane level.

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Starting with the most basic fundamental observation, A human being

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can make the color of the sky yes, because it's

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a perfect starting point, since the sky itself is not

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inherently blue.

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Speaker 2: No, the void of space surrounding our planet is pitch.

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Speaker 1: Black, and the light radiating from the sun is white.

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Speaker 2: Yes, it is a composite containing all the wavelengths, all

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the colors of the visible spectrum.

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Speaker 1: So the blue color that you perceive when you look

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up on a clear day is an artificial construct.

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Speaker 2: Completely artificial. It's a direct result of the atmospheric filter

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operating through a quantum mechanical process known as Raleigh scattering.

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Speaker 1: I want to get deep into the weeds on Raleigh scattering.

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Let's do it, because this is the exact mechanism that

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proves the glass sky isn't just a metaphor. How does

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the sky physically extract blue out of white sunlight?

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Speaker 2: It comes down to the interaction between electromagnetic radiation, which

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is what light is, and the physical size of the

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molecules in our atmosphere.

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Speaker 1: Okay, so the atmosphere is predominantly made of nitrogen and

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oxygen molecules.

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Speaker 2: Right exactly N two and O two. When the continuous

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stream of white light from the sun enters this gas layer,

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the photons collide with these.

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Speaker 1: Molecules and light travels in waves right.

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Speaker 2: And different colors of light correspond to different physical wavelengths. Red, orange,

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and yellow light have relatively long lazy.

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Speaker 1: Wavelengths, meaning the physical distance between the peaks of the

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light wave is whiter exactly.

478
00:22:49,920 --> 00:22:52,839
Speaker 2: Because their wavelengths are much larger than the tiny nitrogen

479
00:22:52,880 --> 00:22:56,599
and oxygen molecules. These longer wavelengths tend to pass right

480
00:22:56,640 --> 00:22:59,240
through the atmosphere relatively undisturbed.

481
00:22:59,319 --> 00:23:01,279
Speaker 1: They just roll right over the molecules.

482
00:23:01,519 --> 00:23:05,480
Speaker 2: But blue and violet light have very short, high frequency energetic.

483
00:23:05,160 --> 00:23:07,640
Speaker 1: Wavelengths, so they don't just roll over the molecules.

484
00:23:07,720 --> 00:23:09,160
Speaker 2: No, they crash directly into them.

485
00:23:09,279 --> 00:23:10,720
Speaker 1: That's a good way to visualize it.

486
00:23:10,880 --> 00:23:13,960
Speaker 2: In physics terms. The oscillate and electric field of the

487
00:23:13,960 --> 00:23:17,599
short wavelength blue photon interacts with the electrons in the

488
00:23:17,640 --> 00:23:21,480
gas molecule, inducing a rapidly oscillating dipole moment.

489
00:23:21,599 --> 00:23:22,559
Speaker 1: Whoa Okay.

490
00:23:23,680 --> 00:23:27,359
Speaker 2: Basically, the molecule temporarily absorbs the energy of the photon

491
00:23:27,480 --> 00:23:30,799
and instantly re emits it. Okay, But crucially, it re

492
00:23:30,839 --> 00:23:34,079
emits that photon in a completely random direction.

493
00:23:34,400 --> 00:23:34,799
Speaker 1: Aha.

494
00:23:35,480 --> 00:23:38,839
Speaker 2: This is elastic scattering, and according to Lord Rayleigh's formula,

495
00:23:38,920 --> 00:23:42,319
the intensity of the scattering is inversely proportional to the

496
00:23:42,359 --> 00:23:43,640
fourth power of the wavelength.

497
00:23:43,759 --> 00:23:47,000
Speaker 1: Okay, let me translate that math for a second, inversely

498
00:23:47,039 --> 00:23:50,279
proportional to the fourth power. That means even a tiny

499
00:23:50,319 --> 00:23:54,279
decrease in the wavelength results in a massive exconental increase

500
00:23:54,319 --> 00:23:55,880
in how much that light gets scattered.

501
00:23:55,960 --> 00:23:59,559
Speaker 2: Precisely, because blue light has such a short wavelength compared

502
00:23:59,599 --> 00:24:02,119
to red light light, it gets scattered across the atmosphere

503
00:24:02,200 --> 00:24:04,319
roughly ten times more efficiently than red light.

504
00:24:04,519 --> 00:24:06,960
Speaker 1: So as the sunlight beams down, the red and yellow

505
00:24:07,000 --> 00:24:09,920
light punches straight through to the ground, but the short

506
00:24:09,960 --> 00:24:14,720
blue wavelengths strike the gas molecules in ricochet in every

507
00:24:14,839 --> 00:24:20,759
possible direction, from molecule to molecule, cascading across the upper atmosphere.

508
00:24:20,960 --> 00:24:22,279
Speaker 2: That is exactly what happened.

509
00:24:22,279 --> 00:24:24,359
Speaker 1: Wait, let me play Devil's advocate here. Sure, if the

510
00:24:24,359 --> 00:24:27,480
blue light is crashing into everything and rickatcheing in every direction,

511
00:24:27,920 --> 00:24:30,839
why doesn't the sky just look like a blinding, chaotic

512
00:24:30,960 --> 00:24:35,000
white fog. How does our eye isolate the blee from

513
00:24:35,000 --> 00:24:38,720
the direct, intensely bright white light of the sun.

514
00:24:38,519 --> 00:24:42,000
Speaker 2: Itself Because you're not looking directly at the sun, well,

515
00:24:42,039 --> 00:24:43,920
hopefully not right. If you look straight at the Sun,

516
00:24:43,960 --> 00:24:46,920
which you shouldn't do. It appears a blinding yellowish white

517
00:24:47,000 --> 00:24:50,519
because you are receiving the unscattered direct beams. Okay, but

518
00:24:50,880 --> 00:24:53,279
when you look away from the Sun toward a random

519
00:24:53,400 --> 00:24:56,279
patch of empty sky, the only light that is reaching

520
00:24:56,279 --> 00:24:58,880
your eye from that specific direction is the light that

521
00:24:58,960 --> 00:25:03,039
was intercepted by gas smalllecule and mathematically redirected scattered straight

522
00:25:03,079 --> 00:25:04,039
down towards your retino.

523
00:25:04,160 --> 00:25:07,559
Speaker 1: Oh, you are seeing the indirect ricocheted blue photons.

524
00:25:07,920 --> 00:25:12,680
Speaker 2: Yes, the atmosphere is essentially catching the white light, tearing

525
00:25:12,720 --> 00:25:15,680
the blue wavelengths out of it, and splashing them across

526
00:25:15,680 --> 00:25:16,839
the entire vault of the sky.

527
00:25:17,359 --> 00:25:21,640
Speaker 1: That is incredible, and it begs another question. If shorter

528
00:25:21,759 --> 00:25:26,079
wavelengths scatter exponentially more than violet, light which has an

529
00:25:26,119 --> 00:25:29,200
even shorter wavelength than blue, should be scattering the most.

530
00:25:29,440 --> 00:25:32,279
Right by the math of Raleigh scattering, the sky should

531
00:25:32,319 --> 00:25:34,759
actually be a deep purple. Why isn't it.

532
00:25:35,279 --> 00:25:38,200
Speaker 2: That is a brilliant observation, and the answer lies in

533
00:25:38,240 --> 00:25:41,039
a combination of stellar emission and human biology.

534
00:25:41,240 --> 00:25:42,200
Speaker 1: Okay, lay it on me.

535
00:25:42,359 --> 00:25:45,440
Speaker 2: First, Our sun does not emit all wavelengths of light equals.

536
00:25:45,519 --> 00:25:46,920
Speaker 1: It doesn't No, the.

537
00:25:46,880 --> 00:25:49,640
Speaker 2: Solar emission spectrum peaks in the blue green area, and

538
00:25:49,720 --> 00:25:52,759
it'll puts significantly less violet light than blue light. So

539
00:25:53,000 --> 00:25:55,519
there is simply less violet light entering the atmosphere to

540
00:25:55,559 --> 00:25:55,920
begin with.

541
00:25:56,039 --> 00:25:58,200
Speaker 1: Okay, so it's a supply issue.

542
00:25:57,920 --> 00:26:02,000
Speaker 2: Partially, but the more dominant reason is the physiological limitation

543
00:26:02,079 --> 00:26:05,680
of the human eye itself. Our eyes, yes, our retinas

544
00:26:05,680 --> 00:26:09,519
contain three types of color receptive cones, red, green, and blue.

545
00:26:10,000 --> 00:26:11,519
We do not have violet cones.

546
00:26:11,640 --> 00:26:11,920
Speaker 1: Wow.

547
00:26:12,039 --> 00:26:15,640
Speaker 2: Really, our eyes are highly sensitive to blue light, but

548
00:26:15,720 --> 00:26:18,400
our sensitivity drops off a cliff as we move toward

549
00:26:18,440 --> 00:26:19,799
the violet end of the spectrum.

550
00:26:19,880 --> 00:26:23,079
Speaker 1: So even though there is violet light being scattered in

551
00:26:23,119 --> 00:26:28,680
the sky, our biological hardware basically ignores it and heavily

552
00:26:28,920 --> 00:26:30,640
biases the blue signal.

553
00:26:31,000 --> 00:26:34,880
Speaker 2: Exactly, we are perceiving a filtered reality through a filtered

554
00:26:34,880 --> 00:26:35,880
biological lens.

555
00:26:36,039 --> 00:26:40,559
Speaker 1: It's layers of distortion, the Sun's output, the atmosphere's physical scattering,

556
00:26:40,599 --> 00:26:44,000
and our own biological rendering engine all combined to create blue.

557
00:26:44,119 --> 00:26:47,000
Speaker 2: It really makes you appreciate as simple blue sky, doesn't it?

558
00:26:47,000 --> 00:26:50,359
Speaker 1: It does, and you see this atmospheric filtering process become

559
00:26:50,440 --> 00:26:53,640
incredibly dramatic at sunset because the color shift isn't the

560
00:26:53,680 --> 00:26:57,519
sun changing, it's the geometry of the lens changing exactly.

561
00:26:57,559 --> 00:26:59,720
Speaker 2: We have to introduce the concept of air mass or the.

562
00:26:59,680 --> 00:27:01,599
Speaker 1: Opt pathlink omptical pathline.

563
00:27:01,599 --> 00:27:04,119
Speaker 2: When the sun is directly overhead at noon, the light

564
00:27:04,200 --> 00:27:06,839
is traveling through the thinnest vertical slice of the atmosphere

565
00:27:06,839 --> 00:27:07,319
to reach.

566
00:27:07,160 --> 00:27:08,200
Speaker 1: You right straight down.

567
00:27:08,400 --> 00:27:11,119
Speaker 2: But at sunset, the sun is low on the horizon,

568
00:27:12,079 --> 00:27:15,160
the light has to travel at an oblique angle, cutting

569
00:27:15,200 --> 00:27:18,920
through a significantly thicker horizontal cross section of the atmosphere

570
00:27:19,039 --> 00:27:19,880
to reach your eyes.

571
00:27:20,119 --> 00:27:23,119
Speaker 1: So it's traveling through hundreds of extra miles of gas molecules.

572
00:27:23,240 --> 00:27:26,799
Speaker 2: Yes, and because of that vastly increased path length, the

573
00:27:26,920 --> 00:27:31,160
Ralegh scattering effect basically goes into overdrive. By the time

574
00:27:31,240 --> 00:27:34,319
the light beam travels through that much air, almost all

575
00:27:34,359 --> 00:27:37,759
of the short blue and violet wavelengths have been completely

576
00:27:37,799 --> 00:27:40,519
scattered away, bounced out of the being entirely.

577
00:27:40,240 --> 00:27:41,839
Speaker 1: So they're just gone before they reach us.

578
00:27:42,200 --> 00:27:44,759
Speaker 2: All that is left with enough kinetic energy to punch

579
00:27:44,799 --> 00:27:47,920
straight through that incredibly thick layer of air and reach

580
00:27:47,920 --> 00:27:50,839
your retina are the longest wavelengths.

581
00:27:50,359 --> 00:27:54,680
Speaker 1: The intense deep reds, the heavy oranges, and the goals exactly.

582
00:27:55,160 --> 00:27:57,839
Think about the philosophical weight of that for a second.

583
00:27:58,000 --> 00:28:00,920
When you stand on a beach and admire a stunning,

584
00:28:01,079 --> 00:28:04,400
vibrant red sunset, you are not seeing the actual color

585
00:28:04,440 --> 00:28:04,880
of the sun.

586
00:28:05,240 --> 00:28:06,720
Speaker 2: No, you are looking at a subtraction.

587
00:28:07,200 --> 00:28:10,960
Speaker 1: You are seeing the physical exhaust of the atmosphere's filtering process.

588
00:28:11,279 --> 00:28:14,319
The atmosphere is literally deciding what colors are allowed to

589
00:28:14,319 --> 00:28:16,319
survive the journey to your retina.

590
00:28:16,440 --> 00:28:19,839
Speaker 2: It is the ultimate editor. It's crazy it its color

591
00:28:20,079 --> 00:28:22,519
and at its spatial positioning as well, particularly when we

592
00:28:22,559 --> 00:28:24,160
look beyond our own solar system.

593
00:28:24,240 --> 00:28:27,680
Speaker 1: Oh yeah, consider how we view the broader cosmos. From childhood,

594
00:28:27,720 --> 00:28:31,279
we are taught the rhyme twinkle, twinkle little star, right,

595
00:28:31,599 --> 00:28:33,680
But fundamentally, stars do not twinkle.

596
00:28:33,839 --> 00:28:34,279
Speaker 2: They do not.

597
00:28:34,799 --> 00:28:39,160
Speaker 1: A star is a massive, incredibly stable sphere of burning

598
00:28:39,240 --> 00:28:45,279
plasma undergoing nuclear fusion, emitting a constant, unrelenting stream of photons.

599
00:28:45,519 --> 00:28:47,960
If you were floating in the cold vacuum of space

600
00:28:48,240 --> 00:28:51,720
far outside the Earth's orbit, stars would not flicker. They

601
00:28:51,720 --> 00:28:55,640
would look like hard, piercing, completely unblinking pin pricks of light.

602
00:28:56,119 --> 00:28:58,359
The twinkle is an absolute lie.

603
00:28:58,519 --> 00:29:04,000
Speaker 2: The scientific term for twinkling is astronomical seeing or atmospheric scintillation,

604
00:29:04,039 --> 00:29:07,319
and it is entirely an artifact of our atmospheric lens.

605
00:29:07,839 --> 00:29:10,599
Think about the journey of a photon from a distant star.

606
00:29:11,039 --> 00:29:15,960
Say serious that light travels for over eight years across

607
00:29:15,960 --> 00:29:20,960
the absolute pristine vacuum of interstellar space, perfectly undisturbed, in

608
00:29:21,000 --> 00:29:24,279
a perfectly straight lined eight years. But in the final

609
00:29:24,400 --> 00:29:27,200
microscopic fraction of a second of its journey, just a

610
00:29:27,240 --> 00:29:30,599
few dozen miles before it hits your eye, it hits

611
00:29:30,640 --> 00:29:31,559
the Earth's.

612
00:29:31,240 --> 00:29:34,559
Speaker 1: Atmosphere, and it hits a wall of chaos. It has

613
00:29:34,599 --> 00:29:37,519
to pass through layers of hot and cold air, violent

614
00:29:37,599 --> 00:29:41,200
jet streams, moving thermal currents, and atmospheric dusts.

615
00:29:41,240 --> 00:29:45,400
Speaker 2: Precisely because the refractive index of air changes constantly with

616
00:29:45,480 --> 00:29:48,480
temperature and density, those moving pockets of hot and cold

617
00:29:48,519 --> 00:29:51,680
air act like thousands of tiny, shifting lenses.

618
00:29:51,400 --> 00:29:52,920
Speaker 1: So it's not a single lens anymore.

619
00:29:53,039 --> 00:29:56,000
Speaker 2: No, As the narrow beam of starlight passes through these

620
00:29:56,039 --> 00:30:00,480
turbulent cells, the light gets continuously bent, slightly deflected, and

621
00:30:00,519 --> 00:30:03,880
scattered refracted dozens or hundreds of times a second, so the.

622
00:30:03,920 --> 00:30:06,039
Speaker 1: Light beam is physically dancing around on your retin.

623
00:30:06,279 --> 00:30:10,000
Speaker 2: Yes, the wavering, shimmering twinkle is just the visual disortion

624
00:30:10,079 --> 00:30:12,240
of the turbulent fluid dynamics of the air itself.

625
00:30:12,279 --> 00:30:14,400
Speaker 1: You aren't seeing the star twinkle. You are seeing the

626
00:30:14,440 --> 00:30:15,480
atmosphere boil.

627
00:30:15,680 --> 00:30:16,720
Speaker 2: That's a perfect way to put it.

628
00:30:17,160 --> 00:30:21,960
Speaker 1: That atmospheric boiling is so incredibly disruptive to data collection

629
00:30:22,240 --> 00:30:25,559
that modern professional astronomers basically have to declare war on

630
00:30:25,599 --> 00:30:27,039
the sky just to do their jobs.

631
00:30:27,079 --> 00:30:27,680
Speaker 2: They really do.

632
00:30:28,240 --> 00:30:31,680
Speaker 1: To get clear pictures of the universe from ground based observatories,

633
00:30:32,079 --> 00:30:35,680
scientists had to invent an entirely new discipline of physics

634
00:30:35,720 --> 00:30:37,319
called adaptive optics.

635
00:30:37,559 --> 00:30:40,880
Speaker 2: Adaptive optics is one of the most brilliant engineering solutions

636
00:30:40,920 --> 00:30:43,200
to the glass sky problem. It sounds like sci fi,

637
00:30:43,680 --> 00:30:47,680
it basically is without it, building a larger telescope mirror

638
00:30:47,720 --> 00:30:49,880
on Earth doesn't actually give you a sharper image of

639
00:30:49,880 --> 00:30:53,680
a star. It just gives you a brighter, blurrier blob.

640
00:30:53,319 --> 00:30:56,240
Speaker 1: Because you are just collecting light through a wider column

641
00:30:56,279 --> 00:30:57,160
of turbulent air.

642
00:30:57,440 --> 00:31:01,200
Speaker 2: Right To solve this, observatories like the very large telescope

643
00:31:01,240 --> 00:31:04,960
in Chile use a fascinating combination of lasers, sensors, and

644
00:31:05,039 --> 00:31:06,000
mechanical mirrors.

645
00:31:06,240 --> 00:31:09,160
Speaker 1: Walk us through the exact hardware of how a telescope

646
00:31:09,160 --> 00:31:11,599
fights the atmosphere. How do they unbend the light?

647
00:31:11,880 --> 00:31:14,759
Speaker 2: Okay, first they have to measure the exact distortion of

648
00:31:14,799 --> 00:31:16,000
the atmosphere in real time.

649
00:31:16,000 --> 00:31:16,920
Speaker 1: How do you even do that?

650
00:31:17,079 --> 00:31:20,559
Speaker 2: They do this by shooting a powerful solid state laser,

651
00:31:21,480 --> 00:31:24,759
usually tuned to a very specific wavelength of five hundred

652
00:31:24,799 --> 00:31:28,359
and eighty nine nanimeters, straight up into the sky, parallel

653
00:31:28,359 --> 00:31:29,839
to the telescope's.

654
00:31:29,200 --> 00:31:30,839
Speaker 1: Line of site, straight up into space.

655
00:31:31,200 --> 00:31:34,599
Speaker 2: Well, this specific wavelength of laser interacts with a layer

656
00:31:34,640 --> 00:31:38,440
of sodium atoms located in the mesosphere about ninety kilometers

657
00:31:38,480 --> 00:31:42,119
above the Earth. Okay, the laser excites these sodium atoms,

658
00:31:42,279 --> 00:31:46,680
causing them to glow, effectively creating an artificial glowing guide

659
00:31:46,680 --> 00:31:48,400
star in the upper atmosphere.

660
00:31:48,440 --> 00:31:50,680
Speaker 1: Okay, so they paint a fake star on the edge

661
00:31:50,680 --> 00:31:51,160
of space.

662
00:31:51,319 --> 00:31:54,240
Speaker 2: Why because they know exactly what that artificial guide star

663
00:31:54,279 --> 00:31:57,000
should look like. It should be a perfect sharp point

664
00:31:57,000 --> 00:31:59,599
of light. Oh but as the light from that glowing

665
00:31:59,640 --> 00:32:03,279
sodium descends back down through the turbulent atmosphere to the telescope,

666
00:32:03,559 --> 00:32:07,480
it gets smeared and distorted by the temperature variations, just

667
00:32:07,559 --> 00:32:08,400
like real starlight.

668
00:32:08,519 --> 00:32:08,839
Speaker 1: Ah.

669
00:32:09,119 --> 00:32:12,079
Speaker 2: The telescope catches this distorted light and feeds it into

670
00:32:12,119 --> 00:32:16,319
a specialized camera called a wavefront sensor, often a shack Hartman.

671
00:32:16,200 --> 00:32:19,759
Speaker 1: Sensor, and the sensor calculates the math of the distortion exactly.

672
00:32:20,160 --> 00:32:24,319
Speaker 2: It measures the precise shape of the distortion hundreds sometimes

673
00:32:24,319 --> 00:32:27,759
thousands of times every single second. Every second, it calculates

674
00:32:27,799 --> 00:32:30,240
exactly how the lens of the atmosphere is bending the

675
00:32:30,279 --> 00:32:35,440
light at that exact millisecond. That data is instantaneously fed

676
00:32:35,480 --> 00:32:39,799
into a supercomputer, which sends electrical signals to a deformable

677
00:32:39,839 --> 00:32:41,599
mirror inside the telescope.

678
00:32:41,680 --> 00:32:44,119
Speaker 1: This is the part that blows my mind. The mirror

679
00:32:44,240 --> 00:32:45,359
physically moves.

680
00:32:45,599 --> 00:32:48,640
Speaker 2: It doesn't just move, it physically changes its shape. What

681
00:32:49,000 --> 00:32:51,839
The back of this ultra thin mirror is lined with

682
00:32:52,079 --> 00:32:57,599
hundreds of tiny piezoelectric actuators basically tiny pistons okay, based

683
00:32:57,640 --> 00:33:00,640
on the computer's calculations. These pistons push pull on the

684
00:33:00,680 --> 00:33:03,559
back of the mirror microscopically warping the surface of the

685
00:33:03,559 --> 00:33:06,599
glass hundreds of times a second to create the exact

686
00:33:06,720 --> 00:33:09,559
opposite optical shape of the atmospheric distortion.

687
00:33:09,799 --> 00:33:13,559
Speaker 1: They are continuously building a custom high tech prescription contact

688
00:33:13,680 --> 00:33:16,519
lens for the telescope, adjusting it a thousand times a

689
00:33:16,559 --> 00:33:18,519
second just to cancel out the atmosphere.

690
00:33:18,599 --> 00:33:23,759
Speaker 2: It perfectly neutralizes the turbulence. The incoming distorted starlight bounces

691
00:33:23,799 --> 00:33:27,920
off this actively warping mirror, and the two distortions mathematically

692
00:33:28,000 --> 00:33:29,039
cancel each other.

693
00:33:28,880 --> 00:33:32,559
Speaker 1: Out, resulting in a perfectly sharp, crystal clear image of

694
00:33:32,599 --> 00:33:36,359
the cosmos. Yes, because without adaptive optics, looking at the

695
00:33:36,359 --> 00:33:39,400
cosmos from the surface of the Earth is physically identical

696
00:33:39,559 --> 00:33:41,599
to trying to read a book while looking up from

697
00:33:41,640 --> 00:33:42,839
the bottom of a swimming pool.

698
00:33:42,880 --> 00:33:46,400
Speaker 2: The fluid dynamics are nearly identical. The research sources lean

699
00:33:46,440 --> 00:33:48,039
heavily into this specific metaphor.

700
00:33:48,400 --> 00:33:52,400
Speaker 1: We rarely conceptualize ourselves this way because air is invisible

701
00:33:52,400 --> 00:33:56,440
to us, but humans are essentially bottom dwellers in a deep,

702
00:33:56,680 --> 00:33:58,920
dense ocean of gaseous fluid.

703
00:33:59,119 --> 00:34:01,920
Speaker 2: It's true. As a crab walking on the ocean floor

704
00:34:02,000 --> 00:34:05,119
looks up and sees the sun distorted by the ripples, waves,

705
00:34:05,160 --> 00:34:07,400
and density currents of the water column above it.

706
00:34:07,640 --> 00:34:10,119
Speaker 1: We look up and see the entire universe distorted by

707
00:34:10,159 --> 00:34:12,679
the fluid dynamics of our nitrogen oxygen ocean.

708
00:34:12,840 --> 00:34:16,159
Speaker 2: I love that visual framework. We're just deep sea creatures

709
00:34:16,199 --> 00:34:19,960
walking around under immense hydrostatic pressure in an ocean of gas,

710
00:34:20,119 --> 00:34:22,079
completely oblivious to the medium we live in.

711
00:34:22,320 --> 00:34:25,880
Speaker 1: It's crazy. But if we accept all this hard physics,

712
00:34:26,039 --> 00:34:29,679
the refractive index bending ships into the sky, the elastic

713
00:34:29,760 --> 00:34:33,679
quantum scattering of blue photons, the turbulent scintillation of starlight

714
00:34:33,719 --> 00:34:37,280
that requires lasers and shape shifting mirrors to bypass, it

715
00:34:37,360 --> 00:34:41,880
leads to a wildly humbling philosophical conclusion, which is we

716
00:34:41,960 --> 00:34:46,599
are perpetually living behind a cosmic anti glare screen. Everything

717
00:34:46,679 --> 00:34:49,400
we see, every visual input we rely on to navigate

718
00:34:49,400 --> 00:34:53,400
and understand the universe is delayed, edited, scattered, and physically

719
00:34:53,440 --> 00:34:56,679
warped before it ever hits our biological sensors. We have

720
00:34:57,000 --> 00:34:59,119
literally never seen the raw universe.

721
00:34:59,199 --> 00:35:01,920
Speaker 2: It demands a profet. I found a pistemological shift when

722
00:35:01,960 --> 00:35:04,920
you fully internalize the mechanics of it. Big words, I know,

723
00:35:05,079 --> 00:35:07,880
but it's true. Everything we consider to be our baseline

724
00:35:07,880 --> 00:35:11,840
empirical reality, our day to day visual data is secondary information.

725
00:35:12,000 --> 00:35:12,960
Speaker 1: Secondary information.

726
00:35:13,079 --> 00:35:16,159
Speaker 2: We never interact directly with a source object. We only

727
00:35:16,159 --> 00:35:19,440
interact with the atmosphere's subsequent rendering of the source object. Wow,

728
00:35:19,519 --> 00:35:22,280
our optic nerves do not touch the universe. They only

729
00:35:22,320 --> 00:35:25,320
touch the highly curated light that the atmospheric filter permits

730
00:35:25,320 --> 00:35:25,920
to pass through.

731
00:35:26,199 --> 00:35:28,760
Speaker 1: Okay, I want to grab onto a very specific word

732
00:35:28,800 --> 00:35:30,519
you just used, rendering.

733
00:35:30,679 --> 00:35:31,159
Speaker 2: Rendering.

734
00:35:31,320 --> 00:35:35,480
Speaker 1: Yes, because if the atmosphere is actively rendering light and

735
00:35:35,559 --> 00:35:40,119
rendering color and dynamically rendering the spatial positioning of stars

736
00:35:40,159 --> 00:35:44,440
and cargo ships, could it be rendering reality itself.

737
00:35:44,760 --> 00:35:46,400
Speaker 2: Ah, Now we're getting into the deep end.

738
00:35:46,400 --> 00:35:48,400
Speaker 1: We really are. This is the exact point in our

739
00:35:48,440 --> 00:35:52,079
research stack where we transition out of hard extrophysics, leave

740
00:35:52,119 --> 00:35:54,920
the telescope behind, and step right into the realm of

741
00:35:55,039 --> 00:35:57,599
modern digital philosophy and fringe theory.

742
00:35:57,679 --> 00:35:58,159
Speaker 2: Let's do it.

743
00:35:58,280 --> 00:36:00,679
Speaker 1: Let's talk about the concept of the rend boundary.

744
00:36:01,000 --> 00:36:05,760
Speaker 2: To properly contextualize this transition into theoretical philosophy, we first

745
00:36:05,800 --> 00:36:08,800
need to change our vantage point. Also, up until now

746
00:36:08,880 --> 00:36:11,039
we have been talking about looking up from the bottom

747
00:36:11,079 --> 00:36:14,000
of the gaseous ocean. We've been analyzing the lens from

748
00:36:14,000 --> 00:36:16,400
the inside out, right, But let's look at the atmosphere

749
00:36:16,440 --> 00:36:19,320
from the outside in high above the Earth, up near

750
00:36:19,360 --> 00:36:22,480
the Carmen line, where the atmosphere technically ends in space begins.

751
00:36:23,079 --> 00:36:26,239
The sky doesn't look like a vast, endless blue vault.

752
00:36:26,440 --> 00:36:28,960
Speaker 1: No, if you read the accounts of astronauts on the

753
00:36:28,960 --> 00:36:33,840
ISS or look at high altitude orbital photography, the atmosphere

754
00:36:33,880 --> 00:36:35,440
looks incredibly fragile.

755
00:36:35,719 --> 00:36:36,440
Speaker 2: It really does.

756
00:36:36,559 --> 00:36:39,280
Speaker 1: From the hard vacuum of space, the atmosphere looks like

757
00:36:39,280 --> 00:36:43,920
a glowing, paper thin veil. It's just a tiny, delicate

758
00:36:44,039 --> 00:36:47,000
blue arc hugging the severe curvature of the rock.

759
00:36:47,280 --> 00:36:51,519
Speaker 2: It looks like a literal physical shell encapsulating a terrarium.

760
00:36:51,559 --> 00:36:55,360
Speaker 1: And when proponents of digital physics or fringe simulation theorists

761
00:36:55,440 --> 00:36:59,360
look at that glowing paper thin boundary layer, they don't

762
00:36:59,480 --> 00:37:03,039
just see a mixture of interacting gases governed by fluid dynamics.

763
00:37:03,119 --> 00:37:06,239
Speaker 2: Oh, they see a structural mechanism. They see something operating

764
00:37:06,280 --> 00:37:08,119
beyond traditional thermodynamics.

765
00:37:08,199 --> 00:37:11,280
Speaker 1: They look at that boundary and see a digital interface exactly.

766
00:37:11,519 --> 00:37:13,880
Speaker 2: And to understand how they arrive at that conclusion, we

767
00:37:13,960 --> 00:37:17,239
have to touch upon the foundational logic of the simulation hypothesis, right.

768
00:37:17,599 --> 00:37:22,119
Speaker 1: The simulation hypothesis originally introduced by the Swedish philosopher Nick

769
00:37:22,119 --> 00:37:25,159
Bostrom in a Seminal two thousand and three paper. This

770
00:37:25,239 --> 00:37:28,000
is the thought experiment that has fueled every late night

771
00:37:28,079 --> 00:37:30,880
college dorm room debate for the last two decades. But

772
00:37:31,000 --> 00:37:33,280
Bostrom didn't just pose it as a stone or what

773
00:37:33,440 --> 00:37:37,599
if he framed it as a rigorous statistical probability.

774
00:37:37,840 --> 00:37:42,719
Speaker 2: Yes, Bostrom presented a trilemma three distinct propositions, of which

775
00:37:42,719 --> 00:37:45,119
he argues at least one must be true.

776
00:37:45,239 --> 00:37:46,320
Speaker 1: Okay, let's hear them.

777
00:37:46,440 --> 00:37:51,760
Speaker 2: The logic dictates that either one, all human like civilizations

778
00:37:51,800 --> 00:37:55,519
go extinct before reaching a technological level capable of running

779
00:37:55,559 --> 00:37:57,840
realistic simulations of reality.

780
00:37:57,599 --> 00:37:59,519
Speaker 1: So we destroy ourselves.

781
00:37:59,599 --> 00:37:59,960
Speaker 2: Got it.

782
00:38:00,280 --> 00:38:05,079
Speaker 1: Two civilizations reach that technological maturity, but for ethical or

783
00:38:05,079 --> 00:38:08,960
practical reasons, they completely lose interest in running ancestor simulations.

784
00:38:09,000 --> 00:38:10,039
Speaker 2: They just choose not to.

785
00:38:10,239 --> 00:38:13,239
Speaker 1: Where are three. We're almost certainly living inside a simulation

786
00:38:13,360 --> 00:38:13,760
right now.

787
00:38:13,840 --> 00:38:16,639
Speaker 2: Let's focus on that third option because a mathematical argument

788
00:38:16,679 --> 00:38:19,159
is that if a mature civilization can run simulations and

789
00:38:19,199 --> 00:38:21,760
they want to run simulations, they wouldn't just run one, No, they.

790
00:38:21,719 --> 00:38:23,960
Speaker 1: Would run billions of them simultaneously.

791
00:38:24,079 --> 00:38:28,719
Speaker 2: Therefore, statistically, there are billions of simulated realities and only

792
00:38:28,800 --> 00:38:33,599
one base physical reality. Right, So the statistical probability that

793
00:38:33,639 --> 00:38:36,199
we happen to be the one civilization in base reality

794
00:38:36,559 --> 00:38:41,320
is mathematically close to zero. We are almost certainly data.

795
00:38:41,400 --> 00:38:44,840
Speaker 1: That is the core of substrate independence theory, the idea

796
00:38:44,920 --> 00:38:48,920
that consciousness doesn't strictly require biological carbon to exist. It

797
00:38:49,039 --> 00:38:52,920
just requires a sufficiently complex processing network, whether that network

798
00:38:52,960 --> 00:38:54,719
is made of neurons or silicon.

799
00:38:55,079 --> 00:38:58,280
Speaker 2: In this framework, the universe isn't built of fundamental physical

800
00:38:58,280 --> 00:39:02,480
matter like quarks and bosons. It is fundamentally constructed of information,

801
00:39:02,880 --> 00:39:04,880
mathematical rule sets, and code.

802
00:39:05,079 --> 00:39:08,039
Speaker 1: Okay, So if we operate under the assumption of the

803
00:39:08,079 --> 00:39:12,199
simulation hypothesis that we are currently existing inside a highly

804
00:39:12,239 --> 00:39:16,519
advanced computational construct, how does the glass sky theory map

805
00:39:16,559 --> 00:39:16,960
onto that?

806
00:39:17,079 --> 00:39:19,039
Speaker 2: Well, think about the boundary where.

807
00:39:18,800 --> 00:39:22,679
Speaker 1: Does our glowing, paper thin atmospheric veil come into play

808
00:39:22,679 --> 00:39:23,800
in a digital universe.

809
00:39:24,079 --> 00:39:27,440
Speaker 2: In any computational framework, particularly one rendering a virtual environment

810
00:39:27,480 --> 00:39:31,079
for conscious subjects, the system requires an interface. A GPU

811
00:39:31,119 --> 00:39:34,800
doesn't render an entire three D world simultaneously. That would

812
00:39:34,800 --> 00:39:38,880
require infinite processing power. It only renders the environment when

813
00:39:38,920 --> 00:39:41,159
the user's camera looks at it. That makes sense, It

814
00:39:41,239 --> 00:39:45,159
requires a render boundary, a mathematical threshold where the underlying

815
00:39:45,199 --> 00:39:50,119
code or unobserved data arrays are instantly translated or rendered

816
00:39:50,480 --> 00:39:53,760
into the visual geometry that the simulated subjects experience.

817
00:39:54,000 --> 00:39:56,760
Speaker 1: So it's essentially a draw distance in a video game.

818
00:39:56,599 --> 00:40:00,400
Speaker 2: A highly sophisticated version of a draw distance. Yes, fringe

819
00:40:00,440 --> 00:40:03,360
theorists suggest that the atmosphere isn't merely a collection of

820
00:40:03,360 --> 00:40:07,440
gases refracting light. It is the physical manifestation of the

821
00:40:07,480 --> 00:40:09,320
simulation's render boundary.

822
00:40:09,079 --> 00:40:11,199
Speaker 1: The actual literal boundary line.

823
00:40:11,280 --> 00:40:15,239
Speaker 2: It is the exact spatial coordinate where raw, unformatted external

824
00:40:15,320 --> 00:40:19,000
data from the broader simulated universe is translated into the

825
00:40:19,039 --> 00:40:22,840
physical light and thermodynamic parameters that our biological avatars are

826
00:40:22,840 --> 00:40:23,800
programmed to perceive.

827
00:40:24,039 --> 00:40:26,199
Speaker 1: That is a staggering way to look at the sky,

828
00:40:26,480 --> 00:40:29,119
isn't it the idea that the atmosphere is basically the

829
00:40:29,119 --> 00:40:33,159
computer monitor where the universe is actively projected for our benefit.

830
00:40:33,559 --> 00:40:36,280
And what's wild is that those fringe researchers in our

831
00:40:36,320 --> 00:40:39,719
sources point back to the exact atmospheric anomalies we discussed

832
00:40:39,719 --> 00:40:43,599
earlier as proof. Yes, they suggest that things like the fottamorgana,

833
00:40:44,000 --> 00:40:48,159
the hovering cities in China, the impossibly complex halos around

834
00:40:48,159 --> 00:40:50,400
the Sun. They argue these aren't just quirks of a

835
00:40:50,440 --> 00:40:53,320
thermal inversion. They call them reality echoes.

836
00:40:53,559 --> 00:40:57,199
Speaker 2: Reality echoes, by which they mean repeating data patterns or

837
00:40:57,239 --> 00:40:59,280
spatial processing errors exactly.

838
00:40:59,400 --> 00:41:02,519
Speaker 1: They argue that when a thermal inversion happens, it's not

839
00:41:02,679 --> 00:41:06,239
fluid dynamic spending light. It's the system struggling to process

840
00:41:06,360 --> 00:41:08,679
a massive local update in real time.

841
00:41:08,840 --> 00:41:11,679
Speaker 2: The simulation's rendering engine hits a bottleneck.

842
00:41:11,280 --> 00:41:14,920
Speaker 1: The code glitches, and it accidentally copies and pastes entire

843
00:41:15,000 --> 00:41:18,119
cargo ship or a city skyline into the wrong spatial

844
00:41:18,199 --> 00:41:19,239
coordinates in the sky.

845
00:41:19,480 --> 00:41:21,320
Speaker 2: It's the universe literally buffering.

846
00:41:21,719 --> 00:41:24,920
Speaker 1: It is, without a doubt, a highly radical and mathematically

847
00:41:25,000 --> 00:41:29,000
speculative interpretation of standard meteorological fluid dynamics.

848
00:41:29,079 --> 00:41:30,320
Speaker 2: Yes, very speculative.

849
00:41:30,599 --> 00:41:34,280
Speaker 1: But what makes this discussion so fascinating is not necessarily

850
00:41:34,320 --> 00:41:39,599
whether Bostrom's simulation hypothesis is literally physically true or false.

851
00:41:39,800 --> 00:41:44,519
Speaker 2: No, the profound takeaway is how neatly the digital metaphor

852
00:41:44,920 --> 00:41:49,199
of a computer's render boundary perfectly maps onto the actual

853
00:41:49,519 --> 00:41:52,199
empirically proven physics of our atmosphere.

854
00:41:52,239 --> 00:41:53,920
Speaker 1: That's the part that really hooked me and I want

855
00:41:53,920 --> 00:41:57,559
to be perfectly clear to everyone listening. We aren't claiming

856
00:41:57,559 --> 00:41:58,920
that you need to go out and take the red pill,

857
00:41:58,960 --> 00:42:00,639
because we've proven we live the matrix.

858
00:42:00,719 --> 00:42:01,320
Speaker 2: Definitely not.

859
00:42:01,559 --> 00:42:04,440
Speaker 1: But you have to admit the intellectual parallel is undeniable

860
00:42:04,679 --> 00:42:07,320
because think about the through line here. Whether you believe

861
00:42:07,360 --> 00:42:11,320
the sky is made of impenetrable silicon computer code, or

862
00:42:11,360 --> 00:42:14,079
you believe it is made of interacting nultrogen and oxygen

863
00:42:14,119 --> 00:42:17,960
molecules bound by the laws of quantum scattering, the operational

864
00:42:18,079 --> 00:42:19,719
end result is identically the same.

865
00:42:19,880 --> 00:42:23,039
Speaker 2: Something is acting as an ultimate firewall between human perception

866
00:42:23,280 --> 00:42:27,039
and infinity. Even if you reject the simulation hypothesis in

867
00:42:27,079 --> 00:42:32,039
its entirety, the philosophical weight of the metaphor remains intact.

868
00:42:32,400 --> 00:42:37,719
Human consciousness, our evolutionary ability to perceive, measure, and comprehend

869
00:42:37,760 --> 00:42:42,440
our spatial surroundings only interacts with objective physical reality through

870
00:42:42,480 --> 00:42:46,079
the mediation of this specific fluid envelope.

871
00:42:46,239 --> 00:42:51,679
Speaker 1: The atmosphere is the literal physical bridge between whatever objective

872
00:42:52,000 --> 00:42:55,519
raw thermodynamic reality exists out in the cold vacuum of

873
00:42:55,559 --> 00:42:59,239
space and what our subjective biological hardware is capable of

874
00:42:59,280 --> 00:43:00,920
processing down here. On the surface.

875
00:43:01,039 --> 00:43:03,719
Speaker 2: Without that filter, we wouldn't just be blind to the cosmos,

876
00:43:04,039 --> 00:43:06,000
we physically wouldn't exist to ponder it.

877
00:43:06,000 --> 00:43:09,280
Speaker 1: It's cyclical. The history of human observation is completely cyclical.

878
00:43:09,400 --> 00:43:11,639
We have essentially come full circle from the very beginning

879
00:43:11,639 --> 00:43:12,719
of our conversation today.

880
00:43:12,880 --> 00:43:14,199
Speaker 2: How do you mean think about it?

881
00:43:14,519 --> 00:43:18,679
Speaker 1: The ancient cultures we discussed, the Egyptians, the Hebrews, the Babylonians,

882
00:43:18,719 --> 00:43:22,320
the Norse. They lived intimately with nature, observed the optical

883
00:43:22,360 --> 00:43:25,480
distortion of the horizon, looked up and called the sky

884
00:43:25,639 --> 00:43:28,880
a solid crystal dome, a physical firmament. They used the

885
00:43:28,960 --> 00:43:30,880
vocabulary of architecture, yes.

886
00:43:30,840 --> 00:43:32,000
Speaker 2: The language of structure.

887
00:43:32,239 --> 00:43:36,599
Speaker 1: Then, thousands of years later, modern post Enlightenment science observes

888
00:43:36,639 --> 00:43:41,039
the exact same phenomena, calculates the refractive index, looks up

889
00:43:41,280 --> 00:43:45,199
and calls it the atmosphere a layer of dynamically refracting gas.

890
00:43:45,559 --> 00:43:49,039
They use the vocabulary of fluid dynamics. Right and now,

891
00:43:49,239 --> 00:43:52,840
modern theoretical philosophers and fringe theorists observe the mechanics of

892
00:43:52,880 --> 00:43:56,199
the universe, look up and call it a digital render boundary.

893
00:43:56,519 --> 00:43:58,840
They use the vocabulary of computer science.

894
00:43:58,960 --> 00:44:02,199
Speaker 2: But when you strip away the specific cultural vocabulary of

895
00:44:02,239 --> 00:44:05,880
their respective eras they are all describing the exact same

896
00:44:05,960 --> 00:44:07,039
underlying phenomenon.

897
00:44:07,199 --> 00:44:11,239
Speaker 1: Yes, they are all fundamentally describing a living interface, a

898
00:44:11,280 --> 00:44:14,840
boundary condition that physically separates the known terrestrial realm from

899
00:44:14,880 --> 00:44:19,440
the unknown cosmic void and actively mathematically shapes the known

900
00:44:19,599 --> 00:44:21,119
in the process of that separation.

901
00:44:21,320 --> 00:44:23,639
Speaker 2: It really makes you wonder how future generations will.

902
00:44:23,480 --> 00:44:26,320
Speaker 1: Conceptualize it a thousand years from now, when we have

903
00:44:26,440 --> 00:44:29,000
new frameworks of physics that we can't even dream of today,

904
00:44:29,159 --> 00:44:31,559
what new metaphor will they use to describe the sky?

905
00:44:31,880 --> 00:44:35,079
Speaker 2: Because the one thing that remains absolutely constant across human

906
00:44:35,159 --> 00:44:38,679
history is the recognition that the barrier is there and

907
00:44:38,760 --> 00:44:39,920
it is actively working.

908
00:44:40,480 --> 00:44:43,880
Speaker 1: So what is the ultimate conclusion we can draw from this?

909
00:44:44,159 --> 00:44:46,239
What does this mean for us, the people walking around

910
00:44:46,239 --> 00:44:49,159
down here looking up at the sky on a random afternoon.

911
00:44:49,840 --> 00:44:53,320
Speaker 2: If we synthesize all the diverse sources, all the rigorous science,

912
00:44:53,360 --> 00:44:57,320
the fluid dynamics, the historical mythology, and the digital philosophy

913
00:44:57,360 --> 00:45:01,280
we've covered today, the poetic takeaway the glass sky theory

914
00:45:01,440 --> 00:45:02,400
is quite profound.

915
00:45:02,559 --> 00:45:03,079
Speaker 1: It really is.

916
00:45:03,440 --> 00:45:05,360
Speaker 2: It doesn't mean we need to fear that there is

917
00:45:05,400 --> 00:45:09,760
a literal shatterable sheet of glass suspended above our heads,

918
00:45:09,840 --> 00:45:13,039
trapping us. It means that we must accept with a

919
00:45:13,079 --> 00:45:16,000
sense of humility that we live within a dynamic fluid

920
00:45:16,079 --> 00:45:19,960
system that is fundamentally built to distort, to reflect, and

921
00:45:20,000 --> 00:45:20,400
to alter.

922
00:45:20,679 --> 00:45:23,400
Speaker 1: The sky is a constant, looming reminder that we never

923
00:45:23,440 --> 00:45:24,639
see the universe directly.

924
00:45:24,960 --> 00:45:26,960
Speaker 2: We only ever see it bend through the medium that

925
00:45:27,000 --> 00:45:30,119
sustains us, bent through the limitations of our own biology.

926
00:45:30,360 --> 00:45:34,679
Speaker 1: We see the universe bent through ourselves. I absolutely love

927
00:45:34,719 --> 00:45:37,679
that phrasing, and it reminds me of a final, highly

928
00:45:37,760 --> 00:45:40,280
resonant idea I pulled from the very end of our

929
00:45:40,320 --> 00:45:41,280
research stack today.

930
00:45:41,360 --> 00:45:42,239
Speaker 2: Let's hear it.

931
00:45:42,239 --> 00:45:45,880
Speaker 1: It's a philosophical proposal on how we should emotionally react

932
00:45:46,000 --> 00:45:49,920
to these physical distortions, because it's easy to feel alienated

933
00:45:49,920 --> 00:45:52,119
when you realize your senses are being filtered. It is,

934
00:45:52,519 --> 00:45:56,480
But the proposal is this, when you're out there and

935
00:45:56,519 --> 00:45:59,880
you see a massive thermal mirage hovering over the highway,

936
00:46:00,760 --> 00:46:03,800
or you witness a foudomorgana, or you see a sunset

937
00:46:03,840 --> 00:46:07,440
that just looks too impossibly vibrant and geometrically perfect to

938
00:46:07,480 --> 00:46:09,840
be real, or you look up at night and see

939
00:46:09,880 --> 00:46:12,960
a star flickering violently in the dark. Don't think of

940
00:46:13,000 --> 00:46:14,400
it as a glitch in reality.

941
00:46:14,559 --> 00:46:16,719
Speaker 2: No, think of it as a message.

942
00:46:16,320 --> 00:46:19,960
Speaker 1: A message transmitted directly from the medium itself, exactly.

943
00:46:19,559 --> 00:46:22,320
Speaker 2: Because the atmosphere isn't doing this to trick us, and

944
00:46:22,480 --> 00:46:24,639
isn't doing this to hide the raw universe from us.

945
00:46:24,760 --> 00:46:27,800
Speaker 1: The bending of light through a thermal inversion, the quantum

946
00:46:27,880 --> 00:46:31,320
scattering of a blue photon, the scintillation of ancient starlight.

947
00:46:31,639 --> 00:46:33,760
It's reality showing us how to see.

948
00:46:33,920 --> 00:46:37,280
Speaker 2: It is the invisible thermo dynamic mechanisms of the universe

949
00:46:37,639 --> 00:46:41,079
making themselves visible to our naked eyes. The physics are

950
00:46:41,079 --> 00:46:41,599
showing off.

951
00:46:41,639 --> 00:46:44,760
Speaker 1: And honestly, if our baseline reality is going to be

952
00:46:44,840 --> 00:46:49,039
relentlessly bent, edited and filtered by a giant atmospheric lens,

953
00:46:49,400 --> 00:46:52,440
I'm genuinely glad it gives us floating cargo ships, impossible

954
00:46:52,440 --> 00:46:54,599
cities in the clouds, and golden sunsets.

955
00:46:54,719 --> 00:46:57,280
Speaker 2: If reality bends, at least it bends toward wonder.

956
00:46:57,400 --> 00:47:01,199
Speaker 1: It is a highly comforting philosophical stance. The realization that

957
00:47:01,280 --> 00:47:04,920
the very barrier protecting our biology from the lethal radiation

958
00:47:05,000 --> 00:47:09,920
of the cosmos also provides us with such staggering mathematical beauty.

959
00:47:10,000 --> 00:47:13,000
Speaker 2: It elevates the sky from a simple, empty void into

960
00:47:13,079 --> 00:47:16,239
the most complex, dynamic optical instrument ever created.

961
00:47:16,400 --> 00:47:19,480
Speaker 1: I couldn't agree more. We have covered ancient hammered firmaments,

962
00:47:19,519 --> 00:47:23,679
the refractive index of thermal inversions, Arctic ghost continents, hovering

963
00:47:23,760 --> 00:47:28,239
cities in China, elastic quantum scattering, adaptive telescope optics utilizing

964
00:47:28,280 --> 00:47:32,559
mesospheric lasers, and the mathematical probability that we're living inside

965
00:47:32,559 --> 00:47:34,679
a massive simulation rendering engine.

966
00:47:34,719 --> 00:47:37,559
Speaker 2: We've thrown a lot of intense reality bending concepts at

967
00:47:37,599 --> 00:47:38,360
you today.

968
00:47:38,199 --> 00:47:41,320
Speaker 1: But ultimately this show is a conversation and we want

969
00:47:41,320 --> 00:47:42,960
to know where you stand on all of this.

970
00:47:43,519 --> 00:47:45,960
Speaker 2: It fundamentally comes down to a question of perspective and

971
00:47:46,039 --> 00:47:48,920
interpreting the data of your own senses. We are eager

972
00:47:49,079 --> 00:47:49,880
to hear yours.

973
00:47:50,199 --> 00:47:52,400
Speaker 1: So here is the question we are leaving you with today,

974
00:47:52,800 --> 00:47:55,719
And next time you walk outside, take a deep breath

975
00:47:55,800 --> 00:47:58,960
and look up at the clouds. What is it that

976
00:47:59,039 --> 00:48:03,159
you see? Do you see a chaotic fluid ocean of

977
00:48:03,239 --> 00:48:07,119
gas governed by blind thermodynamics. Do you see a giant

978
00:48:07,440 --> 00:48:11,480
reality warping optical lens? Or do you see a digital

979
00:48:11,519 --> 00:48:14,960
render boundary actively updating the parameters of a simulation.

980
00:48:15,400 --> 00:48:16,360
Speaker 2: Let us know your thoughts.

981
00:48:16,519 --> 00:48:18,639
Speaker 1: Drop a comment below and tell us your specific take

982
00:48:18,679 --> 00:48:21,159
on the glass sky theory. We read them all and

983
00:48:21,199 --> 00:48:23,599
it's always fascinating to see how you all interpret the

984
00:48:23,639 --> 00:48:26,480
science in these discussions. Thank you for joining us today

985
00:48:26,519 --> 00:48:27,440
on Thrilling Threads.

986
00:48:27,559 --> 00:48:30,159
Speaker 2: We appreciate you taking the time to explore the weird,

987
00:48:30,360 --> 00:48:32,880
highly reflected mechanics of our universe with us.

988
00:48:33,159 --> 00:48:36,400
Speaker 1: Until next time, stay safe out there, and above all else,

989
00:48:36,599 --> 00:48:37,400
stay curious.