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Speaker 1: Imagine for a fleeting moment that the life you're living

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right now is just one one possibility out of an

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infinite number, that every single choice you've ever made, every

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path you've thought about taking, well, it actually played out

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somewhere else in parallel reality.

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Speaker 2: Right with another version of you living that life exactly.

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Speaker 1: It sounds like pure science fiction, doesn't it. But you

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know this isn't just movie stuff. It's an idea thinkers

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have kicked around for ages and now well physicists are

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seriously looking at her.

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Speaker 2: They really are, And that's what we're diving into today,

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this whole mind bending concept of the many world's theory.

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Speaker 1: Right.

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Speaker 2: The basic idea, like you said, is that anything that

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can happen does happen in some parallel universe. And we're

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talking right now coexisting with us.

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Speaker 1: Wow.

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Speaker 2: So we've got all these sources of articles and research

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you pulled together. That's our starting point, and our mission

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really is to unpack what they tell us. You know,

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how might these parallel universes work, What are the different

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ideas and what does it all mean for how we

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understand reality?

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Speaker 1: Okay, so let's ground ourselves a bit first. This isn't

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some brand new idea cooked up last week, not at all.

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Our sources showed these ideas actually go way way back,

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like ancient Greece sixth century BC. These atomist philosophers, right,

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the atomists. They had this idea that reality just came

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from atoms bumping into each other randomly.

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Speaker 2: Which is pretty radical when you think about it, that everything,

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all this complexity just arises from chance collisions. And if

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that's the case.

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Speaker 1: Then maybe countless other arrangements happened too, creating other universes precisely.

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Speaker 2: And then you had Epicurus, another atomists who took it

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even further. He speculated about infinite worlds out there.

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Speaker 1: Infinite worlds governed by the same natural laws as ours.

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Speaker 2: Yeah, imagine thinking that without telescopes or modern physics, just

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pure reason, wondering if we're alone, if our world is

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unique or just one of many.

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Speaker 1: And it wasn't just the Greeks. Our sources mentioned Indian

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cosmology too, that's.

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Speaker 2: Right, the idea of eternal cycles, verses being created, destroyed,

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and then created again like a cosmic heart meat.

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Speaker 1: It really does seem like this feeling, this intuition that

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maybe our reality isn't the only one pops up across

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different cultures different times.

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Speaker 2: It does. It suggests this deep human need to figure

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out the edges of existence, or maybe the lack of edges.

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Speaker 1: Okay, fast forward a bit to the Renaissance Tredano Bruno.

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Speaker 2: Ah Bruno, a key figure and a tragic one.

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Speaker 1: He was pushing this idea of an infinite universe, countless stars, countless.

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Speaker 2: Planets, which sounds totally normal to us now, but back

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then it was revolutionary and dangerous.

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Speaker 1: Yeah, the sources mentioned the Church didn't exactly approve, led

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to his execution.

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Speaker 2: Sadly, yes, but his vision, that boundless cosmos, it really

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paved the way for how we see the universe now.

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And that huge scale gives us one way to think

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about parallel universes.

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Speaker 1: Right, so let's get into that. How might these parallel

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universes actually be? Our sources lay out a few possibilities.

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The first one just involved sheer scale, right, yeah, vast

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distances exactly.

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Speaker 2: I mean, our observable universe is already ridiculously big, ninety

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three billion light years across, it's hard to even picture.

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Speaker 1: Mind boggling.

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Speaker 2: But what if that's just our little bubble? What if

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the whole universe is actually infinite, like.

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Speaker 1: Our observable bit is just a drop in an infinite ocean.

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Speaker 2: Pretty much. And if the universe is infinite, which math

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increasingly suggests might be true.

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Speaker 1: Then statistically anything could happen again somewhere else.

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Speaker 2: Well yeah, there could be an infinite number of other

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observable universe patches out there beyond our horizon. And if

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you have infinite chances.

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Speaker 1: Then eventually you'd get an exact copy or something really close.

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Me you this conversation happening somewhere else, light.

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Speaker 2: Years away, it becomes statistically probable, even inevitable in an

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infinite space. It's like that old thought experiment infinite monkeys,

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infinite type.

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Speaker 1: Raters eventually one type Shakespeare.

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Speaker 2: Yeah.

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Speaker 1: Wow, still unsettling.

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Speaker 2: It is a strange thought. But then there's another idea,

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the bubble universe theory.

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Speaker 1: Okay, does that one work?

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Speaker 2: This one ties into the big Bang? What if our

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big bang wasn't the only one?

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Speaker 1: Ah, like multiple bangs happening.

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Speaker 2: Kind of imagine an infinite space like a cosmic foam maybe,

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and within that foam, new universes bubbles are constantly inflating,

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each starting with its own big bang.

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Speaker 1: So potentially infinite universe is floating.

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Speaker 2: Around potentially Yes, And here's the really wild part. The

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laws of physics might be different in each bubble.

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Speaker 1: Different laws like gravity works differently or the speed of

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light isn't the same exactly.

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Speaker 2: The fundamental constants we take for granted here might not

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be constant everywhere. Each bubble could have its own unique

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set of rules.

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Speaker 1: Okay, that's a lot to process universes with different rules.

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But then the sources get into something even weirder, rooted

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in quantum.

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Speaker 2: Mechanics, the quantum realm where things get really stringed.

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Speaker 1: Yeah, the Mini World's interpretation, this feels like we're really

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going down the rabbit hole.

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Speaker 2: Now, we definitely are, because when you look at the

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very small scales at a electrons, the rules were used

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to just break down.

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Speaker 1: Particles can be in multiple places at once. Right, It's

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all probabilities, that's the essence of it.

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Speaker 2: Quantum mechanics is inherently probabilistic, and the Many World's Interpretation

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or MWI, takes that seriously. It says, Okay, when a

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quantum event has multiple possible.

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Speaker 1: Outcomes, the universe doesn't just pick one.

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Speaker 2: Nope. According to MWI, the universe splits, it branches off,

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creating a separate parallel universe for every single possible outcome.

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Speaker 1: Whoa okay, hold on, So if a particle could spin

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up or spin down.

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Speaker 2: The universe divides in one universe, it spins up. In

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another parallel universe, it spins down.

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Speaker 1: Both happen. So these infinite copies, they're not far away

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in space. They're here.

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Speaker 2: Now that's the mind bending part. They're thought to occupy

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the same space, maybe in different dimensions, but they branch

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off constantly with every quantum.

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Speaker 1: Event, like different radio stations existing in the same room,

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but we're only tuned to one.

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Speaker 2: That's a really good way to put it. Actually, they're

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separated quantum outcomes, not by distance, constantly branching invisible to

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each other, an ever growing tree of realities.

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Speaker 1: And this whole idea comes from trying to solve some

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deep mysteries in quantum physics itself, like the observer problem,

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the double slit experiment.

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Speaker 2: Absolutely, the double slit experiment is the classic example. You

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fire electrons at a barrier with two slits.

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Speaker 1: And you expect two lines on the screen behind it,

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like little particles going through one slit or the other.

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Speaker 2: Right, But that's not what happens. You get an interference

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pattern like waves passing through both slits and interfering with

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each other.

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Speaker 1: So the electron acts like a wave even though we

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fire them one by one.

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Speaker 2: Somehow, Yes, it seems to exist as a wave of

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probability exploring all paths. But then when you.

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Speaker 1: Try to watch, put a detector there to see what.

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Speaker 2: Slit it goes through exactly, and the moment you observe it,

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the interference pattern disappears, poof, and.

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Speaker 1: You just get the two lines you expected for particles.

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Speaker 2: Right, The act of measuring, of observing seems to force

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the electron to chew a path, to act like a particle.

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Speaker 1: Again, it's bizarre, as if it knows it's being watched.

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That's the observer.

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Speaker 2: Problem, that's the heart of it. Why does observation change

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the outcome? Neil's Bore and the Copenhagen interpretations said, the

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particle exists in superposition, all states at once until observed.

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Then observation causes a collapse into one state.

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Speaker 1: Like flipping a coin, It's neither heads nor tails until

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it lands.

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Speaker 2: Sort of. Yes, observation forces the landing, which brings us

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to Schrodinger's Well, the source called it a crab cat. Huh, Yes,

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the Schrodinger's cat thought experiment, or crabcat if you prefer.

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Speaker 1: Designed to show how weird this Copenhagen idea is when

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you scale it up.

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Speaker 2: Precisely, put a cat or crab cat in a box

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with a radioactive atom, a detector poison. If the atom

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decays a quantum chance event, poison releases, cat dies. If not,

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cat lives.

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Speaker 1: And according to Copenhagen, until you open the box and look.

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Speaker 2: The atom is both decayed and undecayed. So the cat

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is both alive and dead simultaneously, which is.

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Speaker 1: Obviously absurd in our everyday world. It highlights the paradox

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it does.

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Speaker 2: But then, however, the third came along in the fifties.

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He looked at Schrodinger's equation, the math describing how quantum

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states evolve, and.

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Speaker 1: He said, wait a minute.

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Speaker 2: He said, maybe the equation is right. Maybe all the

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possibilities that describes are real. Maybe there's no collapse.

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Speaker 1: So instead of collapsing, the universe splits.

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Speaker 2: Every possible outcome happens just in a different, newly created universe.

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Speaker 1: So for the crabcat, one universe where the Adam decays

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Cat's dead, another parallel universe Atam doesn't decay Cat's alive exactly.

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Speaker 2: Both are real, Your active opening the box just reveals

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which branch you happen to end up on. Another version

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of you on another branch sees the opposite outcome.

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Speaker 1: Okay, if that's right, then there are infinite versions of

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me right now.

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Speaker 2: That's the staggering implication doing anything.

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Speaker 1: The sources mentioned versions watching different TV shows or building

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time machines, or.

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Speaker 2: Speak different languages because history went differently. Maybe a reality

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where your living room isn't there because the dinosaurs survived.

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Speaker 1: Wow, impossible to really grasp that scale.

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Speaker 2: It really is, and it connects to ideas like the

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butterfly effect, doesn't it.

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Speaker 1: Yeah, small changes having huge consequences down the line.

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Speaker 2: In MWI, every tiny event, every choice could be a

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branching point. Think about how your grandparents meant if one

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missed a train.

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Speaker 1: A whole reality branches off where Yeah, well where I

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don't exist.

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Speaker 2: Like this, Or even choosing soup versus salad for lunch.

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It sounds trivial, but trace the consequence is far enough.

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In a branching multiverse, who knows where it leads.

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Speaker 1: It definitely makes you think about choices differently. So if

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these other dimensions, these other universes are potentially all around us,

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can we detect them? Our scientists actually look.

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Speaker 2: At ar, though it's incredibly difficult. Particle accelerators like the

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LHC at CERN are one place.

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Speaker 1: They're looking smashing particles together at huge energies. What are

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they hoping to find?

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Speaker 2: One idea involves gravity. Gravity is weirdly weak compared to

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other forces right One explanation is that gravity might leak

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into extra dimensions that other forces don't experience, So they

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look for signs of energy or particles, specifically hypothetical gravitons

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disappearing maybe into another dimension, like.

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Speaker 1: Trying to catch smoke one source set exactly.

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Speaker 2: It's incredibly subtle if it happens at all, very hard

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to detect.

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Speaker 1: What about tiny black holes connecting universes? That sounds pretty

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sci fi.

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Speaker 2: It's highly theoretical, but some models suggest tiny primordial black

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holes formed right after the Big Bang might act as gateways,

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maybe through wormholes.

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Speaker 1: So they look for weird patterns in the collision.

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Speaker 2: Debris, sort of specific energy signatures that might indicate a

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tiny black hole formed and evaporated, potentially interacting with another

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dimension or universe. Again, a real long shot, needing tons

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of data.

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Speaker 1: Okay, Beyond particle colliders, are there other hints anomalies in space?

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Maybe like that cold spot, ah.

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Speaker 2: The cosmic microwave background cold spot. Yes, that's a fascinating one.

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It's this unusually large cool patch in the heat map

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of the early universe.

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Speaker 1: And one explanation was maybe it's just a big empty

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area of space, a supervoid.

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Speaker 2: That was the leading idea, but some research suggested maybe not.

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A more exotic explanation proposed in twenty seventeen was that

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it could be.

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Speaker 1: A bruise, a bruise from what a.

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Speaker 2: Collision between our nascent universe and another bubble universe way

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back near the beginning, like two bubbles bumping into each other.

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Speaker 1: Okay, that's wow. Still very speculative, though.

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Speaker 2: Highly speculative, yes, but it's the kind of unexplained thing

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that makes physicists consider these wilder ideas.

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Speaker 1: And then there are wormholes themselves, the classic sci fi

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trope for jumping across spacer.

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Speaker 2: Universes right usually considered unstable, needing exotic matter to stay.

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Speaker 1: Open, but maybe not impossible. Sources mentioned some recent research.

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Speaker 2: Yeah, a couple of papers in twenty twenty one revisited

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the math. They suggested traversible wormholes might be theoretically possible

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without needing quite so much exotic stuff still involves extreme gravity, though,

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so you could potentially go through theoretically, but you might

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get crushed, and even if the trip feels instant to you,

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because of time dilation near the wormhole, billions of years

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might pass outside.

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Speaker 1: Okay, so not exactly practical for a weekend trip.

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Speaker 2: No, probably not anytime soon, but the theory is evolving.

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Speaker 1: This leads us to some weirder things people report, like

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the Mandela effect, shared false memories. It's strange how widespread

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some of these are.

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Speaker 2: It really is. The classic example being Nelson Mandela, lots

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of people remembering him dying in prison in the eighties.

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Speaker 1: When he actually passed away in twenty thirteen.

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Speaker 2: Exactly, or Jiffy peanut butter instead of Jeff, or the

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monopoly man's monocle which he never had never had. Psychologists

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have explanations memory distortion suggestion how we reconstruct things makes sense,

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but one fringe theory ties it back to many worlds.

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What if those aren't false memories. What if they're bleed

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throughs real memories from a parallel universe where Mandela did

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die earlier, or jiff was called.

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Speaker 1: Jiffy memories leaking across realities.

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Speaker 2: That's the speculative idea, a hint that we might be

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subtly connected to or influenced by these other branches.

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Speaker 1: Which sounds a lot like the ideas of Philip K. Dick,

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the science fiction writer.

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Speaker 2: Absolutely, for Dick, this wasn't just fiction. He seemed to

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genuinely believe realities could overlap or bleed into hours.

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Speaker 1: Like in The Man in the High Castle, his book

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about the Axis winning WWYI, he claimed he had visions

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of that reality.

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Speaker 2: He did. He described these intense experiences, feeling like he

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was momentarily in that other timeline. He even had this

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whole theory about reality being a simulation.

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Speaker 1: With glitches like deja vu being a system reset or

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a patch.

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Speaker 2: Yeah, exactly. And he thought the Mandela effect could be

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real memories from slightly different simulation timelines, or feeling like

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you know a stranger or a new place feels familiar.

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Speaker 1: He thought those could be echoes from parallel lives you're

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living simultaneously.

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Speaker 2: That was his interpretation of his own strange experiences. He

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lived on that edge between realities in a way.

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Speaker 1: It really makes you wonder why we're so obsessed with

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this stuff. Alternate realities, parallel lives, It's everywhere in stories.

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Why does it grab us so much?

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Speaker 2: I think it comes down to choices, doesn't it Everett's idea,

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Every choice creates a new world. Our lives are the

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sum of our choices. And the thought that every road

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not taken was actually taken by another version of you

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it's powerful.

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Speaker 1: It taps right into that what if question We all

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ask ourselves, Yeah, what if I had taken that job,

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moved to that city, said yes instead.

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Speaker 2: Of no exactly? Lets us explore those possibilities mentally. It's

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a natural human thing to wonder. The trick is, as

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one source pointed out, not to get lost in those

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what ifs and regret the reality you're actually in.

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Speaker 1: Finding that balance between exploring the fantasy and living your actual.

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Speaker 2: Life right, appreciating the path you're on, even while acknowledging

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the infinite others that might exist.

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Speaker 1: So okay, wrapping this up after exploring all this ancient ideas,

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weirdness potential cosmic evidence. The core of the Many World's

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theory remains every possibility plays out somewhere in its own universe.

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Speaker 2: That's the essence of it, constantly brushing realities.

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Speaker 1: And maybe the final thought for everyone listening is think

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about your next choice, big or small. If this theory

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holds any water, that choice isn't just affecting this reality.

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It could be creating a whole new one. Does knowing

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that change how you feel about the choice with the

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present moment.

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Speaker 2: It adds a certain weight, doesn't it. Even if we

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can't see those other worlds.

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Speaker 1: Yeah. And while it's fun, maybe even temping, to think

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about visiting other selves or other realities.

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Speaker 2: The reality we can actually influences this one. We're here

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right now.

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Speaker 1: The choices we make here are the ones that matter

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for us. So m yeah, she's wisely