Reality is Broken: Why the Universe is Just One Big Quantum Glitch

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Skin care experts and dermatologists have often touted the benefits of indoor humidity

as essential for healthy glowing skin.

But did you know dry air can start to harm your skin in as little as 30 minutes?

For years, many people have relied on humidifiers for better skin,

sleep, and overall wellness.

But traditional models, bulky, multi-prone, and difficult to maintain.

That's where canopy humidifier comes in.

Recommended by leading dermatologists,

Canopy is a completely reimagined humidifier, designed to elevate any space,

offering the ultimate in skin care and wellness benefits.

Canopy's clean moisture comes that's dryness,

dullness, and fine lines, while strengthening the skin's barrier,

and boosting the effectiveness of topical skincare products.

With its sleek design, canopy is the cleanest and easiest humidifier on the market.

With its unique technology, cleaning is as easy as popping it in the dishwasher.

Go to getcanopy.co to save $25 on your Canopy humidifier purchase today,

with Canopy's filter subscription.

Even better, use code podcast to check out to save an additional 10% off your Canopy purchase.

Your skin will thank you.

Warning, the following Zippercruder radio spot you are about to hear

is going to be filled with F words.

When you're hiring, we at Zippercruder know you can feel frustrated.

For Lauren even, like your efforts are futile,

and you can spend a fortune trying to find fabulous people,

only to get flooded with candidates who are just fine.

F***!

Fortunately, Zippercruder figured out how to fix all that.

And right now, you can try Zippercruder for free at zippercruder.com slash zip.

With Zippercruder, you can forget your frustrations,

because we find the right people for your roles fast,

which is our absolute favorite F word.

In fact, four out of five employers who post on Zippercruder,

get a quality candidate within the first day.

Fantastic!

So, whether you need to hire four, 40, or 400 people,

get ready to meet first-rate talent.

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I want you to start by picturing a completely ordinary scenario,

something that perfectly obeys the rules of the reality you and I navigate every single day.

Okay, I'm picturing it.

Right, so you are standing on a basketball court.

You take a breath, bend your knees, and you release the ball

in this perfect arc toward the hoop.

The classic macroscopic event.

Cause an effect.

Exactly.

But right as the ball leaves your fingertips,

you squeeze your eyes shut.

You turn around, plug your ears, and you just walk away.

So you don't hear a swish.

No swish.

You don't hear the loud metallic clang of the rim either.

You absolutely no idea if that shot went in or if it missed.

Which means the state of the ball is unknown to you.

Right.

Now imagine an hour goes by.

You are sitting in your living room,

and you remember that your friend was standing on the sidelines.

Oh, and they were recording the entire sequence on their phone.

Yes.

They send you the video file.

Now here is the question, and it's a weird one.

What if the mere act of you deciding whether or not to press play on that video

an hour later actually changes what the basketball did in the past?

That is wow.

Yeah, that breaks the brain a little bit.

Right.

What if your choice in the present re-writes whether that ball went through the net

or bounced off the rim 60 minutes ago?

Well, I mean, in the macrostopic world,

the classical world we experience every day,

that scenario is obviously absurd.

Totally absurd.

The ball either went in or it didn't.

The physical history of that event is locked in stone,

entirely independent of whether you or anyone else ever looks at the footage.

But that's the thing, right?

The profoundly unsettling truth we are exploring today

is that when we strip away that macroscopic illusion

and look at the fundamental building blocks of re-out.

Yeah, exactly.

Photons, electrons, the very substrate of the universe,

the mechanics of existence do not seem to respect that logic at all.

They absolutely do not.

Welcome to Thrilling Threads.

I am so excited for this one.

Today, our mission is to take a massive stack of scientific literature,

peer-reviewed research papers, and deeply complex physical experiments,

and just lay them all out on the table.

We are going to examine the most foundation-shaking paradoxes in modern physics.

And I want to set the baseline right away.

We are not doing the surface level, pop science,

quantum realm is spooky routine.

Right, we assume you already know the basics.

You know what an atom is, you know what a photon is.

What we're doing is dissecting verified,

repeatedly tested physical glitches

that suggest our fundamental understanding of space, time,

and objective reality is just, it's critically flawed.

And to understand the weight of these glitches,

we have to look at how fiercely they disrupted the titans of physics.

The founders?

Yeah.

The absolute legends.

Classical physics gave us a predictable universe,

Newton's laws, Maxwell's equations.

They painted a picture of a consistent objective reality governed by strict cause and effect.

You throw a ball, it lands, you flip a switch, the light turns on.

But when the pioneers of quantum mechanics began probing the atomic scale,

that deterministic universe completely fractured.

It did.

They found a realm governed by wave functions and probabilities,

where particles lack definite properties until measured,

and where non-locality totally defies the speed of light.

And reading through the historical sources for this deep dive,

what strikes me is how much the founders of quantum mechanics

absolutely hated what they had discovered.

Oh, they were existentially disturbed by it.

Yeah, Richard Feynman famously stated,

nobody understands quantum mechanics.

And Neil's bore warned that those who are not shocked when they first come across quantum theory

cannot possibly have understood it.

Right, if you're not freaking out, you're not paying attention.

Roger Penrose went as far as saying,

the theory makes absolutely no sense.

Albert Einstein was deeply repulsed by the implications of a probabilistic universe.

He actually warned that if it is correct,

it signifies the end of physics as a science.

The end of physics, that's dramatic.

And Erwin Schrodinger, the man who mathematically formalized the wave function itself.

The cat guy.

The cat guy, yes.

He wrote, I do not like it, and I am sorry I ever had anything to do with it.

That is just wild to me.

When the architects of a scientific framework express that level of dismay

at their own creation, it signals a profound paradigm shift.

It means the math works, but the philosophical implications are terrifying.

So if you are listening to this and you start to feel your grip

on reality slipping slightly, you're an excellent company.

Very good company.

Let's start by looking at an experiment that maps directly onto that

basketball hypothetical I mentioned earlier,

but ramps up the complexity.

I'm talking about the delayed choice quantum eraser.

Ah, the evil twin of the double slit experiment.

Yes.

Now, assuming you are familiar with the standard double slit experiment,

where an unobserved photon passes through two slits as a wave,

but collapses into a particle the moment we place a detector at the slits.

The delayed choice setup takes that premise and completely breaks the arrow of time.

It really does.

Let's look specifically at the famous 1999 experiment by Kim and his colleagues.

The Kim experiment is a masterclass in quantum ambiguity.

Break it down for us.

Okay, so instead of just firing a single photon at a double slit,

they fire a laser into a specialized crystal, a barium-borate crystal.

VVO rate.

Right.

And this crystal undergoes a process called spontaneous parametric down conversion.

Which sounds incredibly complicated,

but it's basically splitting a photon.

Exactly.

It takes one high energy photon and splits it into two

lower energy perfectly entangled photons.

And we call one the signal photon and the other the idler photon.

Yes.

And because they are entangled, whatever state one is in,

the other instantly correlates to, regardless of distance,

they are mathematically linked.

Right, so we have a pair of twins.

The signal photon is sent straight toward a primary detector screen.

It hits the screen, its position is recorded,

and its journey is completely over.

It hits a wall, basically.

Yeah, it's the equivalent of the basketball already landing.

The event has happened.

Precisely.

But the idler photon, the twin, is sent on a much longer,

more complex optical maze composed of prisms,

beam splitters, and multiple detectors.

And because its path is physically longer,

it arrives at its detectors after the signal photon has already

hit the primary screen and been recorded.

The timing is the crucial part here.

This optical maze is designed to do one of two things.

It either firmly detects which slit the photon pair

originated from, meaning it gets the which kith information.

Right.

Or it uses beam splitters to scramble and completely erase

that which path information.

And the decision of whether the idler photon

hits a detector that reveals the path,

or a detector that erases the path,

happens purely by chance at these beam splitters.

A 50-50 coin toss.

But the reality breaking detail is the timing.

The idler photon hits these erasers or detectors

nanoseconds after the signal photon is already

registered on the main screen.

The signal photon's history is already written.

So if the idler photon's path information is preserved,

what do we see when we look at the signal photon's data?

If the idler's path information is preserved

and you look at the subset of signal photons

corresponding to those specific idlers,

you see a clumped pattern.

A clumped pattern.

Two distinct bands.

Yes.

The signal photons acted like classical particles.

They just went straight through like tiny bullets.

But if the idler's path information

is completely erased by the beam splitters

and you look at that corresponding subset of signal photons.

You see a perfect wave interference pattern,

which implies that the signal photon sitting there

on the primary screen somehow knew what was going to happen

to its entangled twin in the future.

It behaves as if it had foresight.

It's as if the idler photon hitting the eraser detector,

retroactively reached back in time and told the signal photon,

hey, our path data is going to be wiped out

so you better land as a wave.

That is the inescapable feeling you get from the data.

I know physicists bristle at the phrase retroactive.

So how do we actually interpret this

without violating causality?

Are we actually altering the past?

It is essential to delineate the physics from the philosophy here.

The experiment does not allow you to send a message into the past.

Why not?

If the effect precedes the cause.

Because you cannot see the interference pattern

on the primary screen in real time.

The primary screen just looks like a massive,

random scatter of photons.

It's just noise.

Oh, right.

You only extract the interference pattern

through a process called coincidence counting.

Exactly.

You are matching the time stamps of the signal photons

with the time stamps of the idler photons after the fact.

It is a filtering of data.

So you have to wait for the idler photon

to finish its journey before you can decode

what the signal photon did.

Yes.

No faster than light or backward in time communication

is practically possible for us to exploit.

You can't send next week's lottery numbers back to yourself.

Sadly, no.

However, the ontological question remains entirely open.

Even if it's just statistical filtering,

the state of the signal photon is indisputably

mathematically dependent on a measurement

that occurs in its future.

Which naturally forces us to question

how physicists model time at the fundamental level.

If the photon state is determined

by a choice made after it lands,

are there actually equations where time flows backward?

Skincare experts and dermatologists have often

touted the benefits of indoor humidity

as essential for healthy glowing skin.

But did you know dry air can start to harm your skin

and as little as 30 minutes?

For years, many people have relied on humidifiers

for better skin, sleep, and overall wellness.

But traditional models, bulky,

multi-prone, and difficult to maintain.

That's where canopy humidifier comes in.

Recommended by leading dermatologists,

canopy is a completely reimagined humidifier,

designed to elevate any space,

offering the ultimate in skin care and wellness benefits.

Canopies clean moisture, combats dryness,

dullness, and fine lines,

while strengthening the skin's barrier

and boosting the effectiveness of topical skin care products.

With its sleek design,

canopy is the cleannest and easiest humidifier on the market.

With its unique technology,

cleaning is as easy as popping it in the dishwasher.

Go to getcanopy.co to save $25

on your canopy humidifier purchase today

with Canopy's filter subscription.

Even better, use code podcast to check out

to save an additional 10% off your canopy purchase.

Your skin will thank you.

Finding great candidates to hire can be like,

well, trying to find a needle in a haystack.

Sure, you can post your job to some job board,

but then all you can do is hope the right person comes along,

which is why you should try Zippercrooter for free.

At zippercrooter.com slash zip.

Zippercrooter doesn't depend on candidates finding you.

It finds them for you.

It's powerful technology identifies people with the right experience

and actively invites them to apply to your job.

You get qualified candidates fast.

So, while other companies might deliver a lot of,

hey, Zippercrooter finds you what you're looking for.

The needle in the haystack.

See why four out of five employers who post a job on Zippercrooter

get a quality candidate within the first day.

Zippercrooter, the smartest way to hire.

And right now, you can try Zippercrooter for free.

That's right.

Free at zippercrooter.com slash zip.

That zippercrooter.com slash zip.

Zippercrooter.com slash zip.

Skincare experts and dermatologists have often touted the benefits

of indoor humidity as essential for healthy, glowing skin.

But did you know dry air can start to harm your skin

and as little as 30 minutes?

For years, many people have relied on humidifiers for better skin,

sleep, and overall wellness.

But traditional models, bulky, multi-prone, and difficult to maintain.

That's where canopy humidifier comes in.

Recommended by leading dermatologists,

canopy is a completely reimagined humidifier,

designed to elevate any space,

offering the ultimate in skincare and wellness benefits.

Canabies clean moisture, come baths dryness,

dullness, and fine lines while strengthening the skin's barrier

and boosting the effectiveness of topical skincare products.

With its sleek design,

canopy is the cleanest and easiest humidifier on the market.

With its unique technology,

cleaning is as easy as popping it in the dishwasher.

Go to getcanopy.co to save $25 on your canopy

humidifier purchase today with Canabies filter subscription.

Even better, use code podcast to check out

to save an additional 10% off your canopy purchase.

Your skin will thank you.

That brings us to time symmetry and the concept of retro causality.

Let's get into it.

To grasp retro causality,

we have to strip away our biological perception of time.

Human experience is dictated by thermodynamics and entropy.

The arrow of time, things get messier,

not cleaner.

Exactly.

A shattered glass does not spontaneously reassemble.

We move strictly from past to future.

Brushing your teeth happens after you wake up, not before.

Right.

But the fundamental equations of quantum mechanics,

like the time dependent Schrodinger equation,

do not have an inherent arrow of time.

The math doesn't care which way the clock is ticking.

It really doesn't.

If you replace the variable for time,

t with negative time, negative t,

the math functions flawlessly.

The microscopic world is time symmetric.

So the math allows for it,

but how does that apply to the quantum erasure?

Is there a formal theory that utilizes this backward flow?

Yes, the most prominent is the two-state vector formalism,

pioneered by physicist Yakir Aharnov.

I was reading about Aharnov's work, it's fascinating.

It is. In standard quantum mechanics,

we describe a system using a single wave function

that evolves forward from a past boundary condition.

It's pushed by the past,

like a billiard ball getting hit by a hue.

Aharnov's formalism argues that to fully describe a quantum system,

you actually need two wave functions.

Two of them.

One evolves forward from the initial preparation of the state,

and a second wave function evolves backward in time

from the final measurement of the state.

That is heavy.

It means a particle's current behavior

isn't just a result of where it came from.

It is an active negotiation

between where it came from

and where it is going to end up.

An active negotiation is a great way to phrase it.

The future boundary condition

is exerting a gravitational pull,

so to speak, on the present.

It's like writing chapter one of a book,

only after chapter 10 is already finished.

Yes, the ending dictates the beginning.

But if the future is already established enough

to send a wave function backward

to shape my present,

what does that do to our concept of free will?

It puts it in serious jeopardy.

If I am making a measurement,

but the result of that measurement

was already factored into the particles past,

am I actually making a choice?

That is the philosophical friction

at the heart of retro causality.

It strongly implies a framework known as the block universe.

The block universe.

I love this concept, but it terrifies me.

In a block universe model,

grounded in Einstein's general relativity,

spacetime is a four-dimensional, unchanging structure.

A giant block of everything that ever was and will be.

Yes.

The past, present and future do not happen in sequence.

They simply exist simultaneously.

The year 1900, the current moment,

and the year 3000 are all equally real,

just located at different coordinates within the block.

Like a DVD.

The whole movie is on the disc at once.

You're just watching one frame at a time.

Perfect analogy.

But that completely defines human experience.

If the future is already written in this block,

what is the evolutionary or physical point of human consciousness

even feeling like it's making choices?

It's a localized illusion.

It makes consciousness feel like a needle on a record player,

just tracing a groove that has already been pressed into the vinyl.

In a strict block universe,

the sensation of the flow of time is indeed

an illusion generated by our localized neurological processing.

We just process reality frame by frame.

Exactly.

If all moments exist simultaneously,

then retrocausality isn't actually changing the past.

It is simply a recognition that a coordinate in the future

is mathematically correlated with a coordinate in the past.

They co-exist.

The future measurement and the past photon behavior

are locked together in the geometry of the block.

But as unsettling as a deterministic timeline is,

the quantum glitches get far more disruptive

when we look at the nature of objective reality itself.

Right.

Because the block universe implies one solid objective structure

that we are all living inside.

But the Wigner's friend, Paradox,

absolutely shatters the idea of a singular objective reality.

It does. It fundamentally breaks it.

This originated as a thought experiment

by Eugene Wigner in 1961,

but it recently leaped out of theoretical philosophy

and into a physical lab.

Let's outline Wigner's original premise first.

Sure.

Imagine Wigner has a friend inside a perfectly sealed,

perfectly isolated laboratory.

The friend performs a measurement on a quantum system.

Let's say a particle in a superposition of spin up and spin down.

A classic quantum coin flip.

Right.

The friend measures the particle,

the wave function collapses,

and the friend records spin up.

So for the friend inside the lab,

a definite reality has been established.

The coin landed on heads.

But Wigner is standing in the hallway outside the sealed lab.

He hasn't looked inside and no information is leaked out.

The door's locked.

There are no windows.

Exactly.

According to the strict rules of quantum mechanics,

because the lab is a closed system,

Wigner must describe the entire laboratory,

the particle, the measuring equipment,

and his friend as one massive,

entangled quantum system that remains in a superposition.

To Wigner, his friend is in a superposition

of having measured spin up and having measured spin down.

The friend is basically Schroederger's cat.

Yes.

To Wigner, the reality hasn't collapsed yet.

So we have two observers applying the exact same laws of physics

to the exact same event.

The friend experiences a singular,

collapsed reality.

Wigner mathematically models a fluid,

uncollapsed superposition.

And neither of them is wrong.

For decades, physicists dismiss this

as purely philosophical.

I mean, you can't put a human in a superposition

so it didn't matter.

It was just a fun debate for physicists at parties.

But in Tweet name of 19,

my Similiana Prietti and his team at Harriet Watt University

published a study in nature communications

that physically realized this setup.

And they did it by translating the human observers

into complex quantum setups.

How do you replace a human with a quantum setup?

They used six entangled photons

and highly sophisticated interferometers.

Two photons acted as the quantum system being measured.

The coin flip.

Right.

Two other photons acted as the friends

taking the measurement inside their respective labs.

And the labs were actually localized optical circuits?

Yes.

And the final two photons acted as the Wigner's

outside the labs who could either measure the friend's records

or measure the entire lab as a superposition.

And what blows my mind is the methodology here.

How do you measure a measurement

without destroying the superposition?

That's the tricky part.

The Wigner photons performed an interference experiment

on the friend photons.

OK, wait, explain that.

If the friend photons had collapsed into a definite state,

the interference pattern would vanish.

But the priority experiment showed the interference pattern remained.

So the Wigner's definitively proved

the friends were still in a superposition.

Precisely.

The experiment yielded a profound violation of bell inequalities.

It definitively proved that the friend photons

recorded a definite collapse state

while the Wigner photons simultaneously

recorded the system as an uncollapsed superposition.

Both measurements were physically correct.

Both data sets were valid.

Wait, so if you and I both measure a fundamentally different state

of the exact same event, who is right?

You both are.

Does the universe actually have room

for both of our measurements to be true at the same time?

Or is reality just fracturing?

The inescapable conclusion of the 2019 study

is that objective reality, the idea of a single God's eye view

of the universe that is true for everyone,

does not exist at the quantum level.

It just doesn't exist.

Reality is observer-dependent.

The properties of the universe are fundamentally relational.

Relational, meaning it only exists relative to me.

Yes.

What you measure is true for your specific frame of reference

and what I measure is true for mine,

even if they completely contradict each other.

Imagine sitting next to someone,

experiencing a fundamentally different physical universe.

It makes reality feel terrifyingly fragile.

It isolates us in our own subjective bubbles.

If objective reality is an illusion,

are we just isolated?

Well, paradoxically, while Wigner's friend isolates us,

our next concept binds the universe together

in a way that defied Einstein's deepest beliefs.

Oh, we are getting into non-locality.

Let's dig into quantum pseudo-tilepathy.

To demonstrate this, physicists often use cooperative logic puzzles

that are mathematically rigged.

Games that you cannot win using classical logic.

Exactly.

Let's look at the Merman Perez Magic Square Game.

Walk us through the rules.

Imagine a three-by-three grid.

You and I are separated into different rooms,

unable to communicate.

You are assigned a random row,

and I am assigned a random column.

Okay, so I get row two, you get column three.

We each have to fill our assigned three boxes

with either a positive one or a negative one.

And the rules for winning are strict.

I've played around with the math on this.

The product of your row must equal positive one.

Right.

The product of my column must equal negative one,

and crucially, where your row and my column intersect,

we must have written down the exact same number.

Yes.

And if we rely on classical physics and classical probability,

even if we memorize a massive strategic playbook beforehand,

we cannot win this game every time.

We can't cheat our way out of it.

The mathematical upper limit for winning classically

is eight out of nine times.

Eventually, the constraints of the grid

force a contradiction and we lose.

But if we utilize the entanglement loophole,

we can break that classical limit.

We can basically perform magic.

Instead of just a playbook,

you and I share two pairs of entanglement particles.

We are still in separate rooms.

We still cannot communicate.

No phones, no talking.

But before we write down our numbers,

we perform specific quantum measurements

on our respective particles based on which row or column we were assigned.

And because the particles are entangled,

the active you measuring your particles

instantly correlates with the state of my particles,

regardless of the physical distance between us.

The quantum states coordinate our answers.

By following the strategy dictated by the particle measurements,

we will win the magic square game nine out of nine times.

A perfect 100% win rate.

To any outside observer,

it looks like we are telepathically communicating our moves.

But we aren't sending radio signals

and we aren't transmitting data.

This brings us to Einstein's nightmare,

spooky action at a distance.

Einstein hated this.

He believed in locality that an object

can only be influenced by its immediate physical surroundings.

You have to touch something to move it.

Right.

He argued that entanglement must be an illusion

that the particles must carry some hidden variables.

Like a secret pre-programmed code they agreed upon

before they were separated?

Yes, Einstein thought quantum mechanics was just incomplete

and we were missing the hidden instruction manual.

But Einstein was wrong about this, wasn't he?

His intuition was brilliant,

but John Stuart Bell formulated a mathematical theorem

in the 1960s Bell's theorem

that provided a way to test hidden variables.

And over the last few decades,

culminating in the 2022 Nobel Prize in Physics,

experiments have definitively proven

that hidden variables do not exist.

The correlation between entangle particles

is truly non-local.

Non-locality is such a sterile academic word

for a concept that completely breaks the concept of distance.

It really does.

If two particles can perfectly coordinate their states

across a laboratory,

or theoretically across the entire diameter

of the observable universe,

instantaneously,

then what even is space?

Space becomes highly suspect.

Is the physical distance between objects

just a macroscopic illusion?

If distance is an illusion,

what does that mean for human connection?

It forces us to view the universe

not as a vast container filled with isolated objects

separated by empty space,

but as a deeply interconnected quantum web.

Everything is touching everything else,

mathematically speaking.

Space and distance might be emergent properties,

things that only appear real when we zoom out,

but at the foundational level,

the universe is a singular,

inseparable entity.

Warning, the following Zipper Cruder radio spot

you are about to hear

is going to be filled with F words.

When you're hiring,

we at Zipper Cruder know you can feel frustrated

for Lauren even.

Like your efforts are futile,

and you can spend a fortune trying to find fabulous people,

only to get flooded with candidates

who are just fine.

F**k!

Fortunately, Zipper Cruder figured out how to fix all that.

And right now, you can try Zipper Cruder for free

at zippercruder.com slash zip.

With Zipper Cruder, you can forget your frustrations,

because we find the right people for your roles fast,

which is our absolute favorite F word.

In fact, four out of five employers who post on Zipper Cruder

get a quality candidate within the first day.

Fantastic!

So whether you need to hire four,

forty, or four hundred people,

get ready to meet first-rate talent.

Just go to zippercruder.com slash zip

to try Zipper Cruder for free.

Don't forget that zippercruder.com slash zip.

Finally, that zippercruder.com slash zip.

Warning, the following Zipper Cruder radio spot

you are about to hear

is going to be filled with F words.

When you're hiring,

we at Zipper Cruder know you can feel frustrated

for Lauren even.

Like your efforts are futile,

and you can spend a fortune trying to find fabulous people,

only to get flooded with candidates who are just fine.

Fortunately, Zipper Cruder figured out how to fix all that.

And right now, you can try Zipper Cruder for free

at zippercruder.com slash zip.

With Zipper Cruder, you can forget your frustrations,

because we find the right people for your roles fast,

which is our absolute favorite F word.

In fact, four out of five employers who post on Zipper Cruder

get a quality candidate within the first day.

Fantastic!

So, whether you need to hire four,

40, or 400 people,

get ready to meet first rate talent.

Just go to zippercruder.com slash zip

to try Zipper Cruder for free.

Don't forget that zippercruder.com slash zip.

Finally, that zippercruder.com slash zip.

Finding great candidates to hire can be like,

well, trying to find a needle in a haystack.

Sure, you can post your job to some job board,

but then all you can do is hope the right person comes along,

which is why you should try Zipper Cruder for free.

At zippercruder.com slash zip.

Zipper Cruder doesn't depend on candidates finding you.

It finds them for you.

It's powerful technology identifies people with the right experience

and actively invites them to apply to your job.

You get qualified candidates fast.

So, while other companies might deliver a lot of,

hey, Zipper Cruder, find you what you're looking for.

The needle in the haystack.

See why four out of five employers who post a job on Zipper Cruder

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Speaking of things we assume are inseparable,

let's talk about the ontology of objects themselves.

What makes a thing a thing?

Right.

Classical physics tells us that an object

and its physical properties are a package deal.

An apple has mass, shape, and color.

You can't separate the redness from the apple.

Exactly.

You can't strip the color red off an apple

and leave the red floating in the hallway

while the apple sits in the kitchen.

That would be absurd.

But the quantum realm disagrees.

Let's look as a quantum Cheshire cat experiment.

The nomenclature, of course, is pulled from Lewis Carroll

where the Cheshire cat vanishes,

leaving only its abstract grin behind.

A perfect name for this experiment.

In 2014, researchers at the Institute La Langevin

successfully separated a physical particle

from one of its fundamental properties.

They separated the grin from the cat.

They used neutrons, which possess mass, spatial location,

and a quantum property called spin.

Spin is a form of intrinsic angular momentum, right?

Roughly speaking, yes.

It's an innate property of the particle.

And the setup requires a silicon crystal interferometer.

They fire a neutron in, and the interferometer

acts as a quantum fork in the road.

Placing the neutron into a spatial superposition

where it travels down two separate paths simultaneously.

An upper path and a lower path.

The brilliance of the experiment relies on a concept

called weak measurement, combined with post-selection.

We have to define weak measurement here.

A standard strong quantum measurement violently

collapses a wave function into a single state.

You'd look at it and it locks into place.

But a weak measurement only interacts with the system

very gently.

It extracts a tiny, statistically noisy amount of information

without fully destroying the superposition.

It's like peeking through your fingers.

Exactly.

And the post-selection part is crucial.

They don't look at every neutron.

Right, they throw out a lot of data.

They only analyze the weak measurement data

from the neutrons that ultimately end up

in a very specific predefined final state

at the end of the interferometer.

So when they perform these weak measurements

on the pre-selected and post-selected ensemble of neutrons,

the mathematical results are staggering.

They are.

The weak value of the particle spatial location,

its physical mass, is found localized entirely

in the upper path of the interferometer.

The mass is up top.

But the weak value of the particle spin,

its magnetic moment, is found localized entirely

in the lower path.

The physical object went one way,

and its property went the other.

The cat took the high road, and the grin took the low road.

I want to really dig into the implications of this.

It forces us to ask, what actually is an object?

It's a deep philosophical question.

We are deeply conditioned by our evolutionary biology

to view matter as solid foundational blocks.

Things you can stub your toe on.

Right.

But the Cheshire cat experiment

supports what philosophers call bundle theory.

Bundle theory suggests that a particle isn't a solid nucleus

that holds properties like a basket holding apples.

A particle is literally just a bundle

of abstract mathematical properties.

Mass, charge, spin.

They usually travel together, so we call that bundle an object.

But under precise quantum manipulation,

you can unbind the bundle.

You can untie the knot.

It reveals that our macroscopic concept of an object

is an oversimplification.

At the bedrock of reality, there are no solid things.

Only collections of observable properties

interacting in space.

It makes the physical world feel incredibly ephemeral.

But if you think stripping a property from a particle

is unsettling, we are about to transition

to an interpretation that strips away

the limits of human mortality.

But at a horrifying cost.

A deeply horrifying cost.

What?

Let's unpack the concept of quantum suicide

and quantum immortality.

We are moving into dark territory here.

And I want to be very clear here.

We are moving from rigorously tested laboratory physics

into highly speculative theoretical interpretation.

But it is an interpretation drive strictly from the map.

To understand this, we must look at the many worlds interpretation,

originally proposed by Hugh Everett in 1957.

As we've discussed, standard quantum mechanics

struggles with the collapse of the wave function.

Why does the superposition pick one reality

when we look at it?

Everett proposed a radical solution.

The wave function never collapses.

It just keeps going.

The math of the Schrodinger equation

just continues to evolve unitarially.

When a quantum event has multiple possible outcomes,

the universe simply branches.

All outcomes physically occur

just in mutually unobservable orthogonal realities.

So if a radioactive atom has a 50% chance of decaying

and a 50% chance of remaining stable, it does both.

In one branch of reality, it decays.

In another branch, it remains stable.

The universe splits.

Now, Max Tagmark and other physicists

have explored a thought experiment

that ties this directly to human consciousness.

Imagine a setup often called the quantum gun.

A weapon is triggered by a quantum event

like the spin measurement of a particle.

If it's spin up, the gun fires.

If it's spin down, it clicks and does nothing.

The thought experiment places a conscious observer

in a chair.

With a quantum gun aimed directly at their head,

they pull the trigger.

According to the many worlds interpretation,

the universe immediately splits.

In one reality, the gun fires

and the observer is instantly killed.

And in the branching reality,

the gun just clicks and the observer is fine.

If you were I or standing outside the room watching this,

we see a standard probability distribution.

If the subject pulls the trigger 10 times,

there's a 99.9% chance we watch them die.

But the paradox hinges entirely

on the anthropic principle

and the subjective first person perspective

of the observer in the chair.

From the first person perspective,

what happens to consciousness when the universe splits?

In the branch where the gun fires,

the observer's brain is instantly destroyed.

Their consciousness ceases to exist.

You cannot experience being dead.

There is no observer left to observe.

Therefore, the only branch of reality

that the observer's consciousness can possibly perceive

is the branch where the gun clicks.

Which means from the subject's point of view,

they pull the trigger 10, 50, 100 times

and every single time the gun just clicks.

They survive a statistically impossible sequence of events.

Their subjective consciousness is essentially forced

to navigate the exact path

through the multiverse where they remain alive.

This is quantum immortality.

It is vital to note the differences between this

and classical probability.

Right, you cannot achieve this

with a standard game of Russian roulette.

Because the physics of a classic revolver

are macroscopic and deterministic.

They do not cause a universal quantum split.

It's just mechanics.

And the immortality described here is purely subjective.

To the rest of the multiverse,

the subject leaves behind countless timelines

filled with their own corpses and grieving families.

It's an intensely selfish form of immortality.

And even for the survivor, it is a chilling prospect.

The thought experiment dictates that your consciousness

must survive, but it doesn't guarantee you survive unharmed.

Oh, that's true.

You could survive a quantum triggered explosion

but be left completely paralyzed, blind and isolated.

As long as a flicker of biological consciousness

remains to observe the universe,

you are trapped in that timeline.

It transforms the many worlds theory

from an elegant mathematical solution

into an existential prism.

It makes us confront how aggressively

our subjective awareness might be tied

to the physical unfolding of reality.

It highlights a persistent tension in physics.

We continually try to remove the observer

from the equations to find an objective universe.

We want the universe to exist without us looking at it.

Yet theories like many worlds and Wigner's friend

keep violently dragging the observer

back into the center of the frame.

And this friction isn't just limited to quantum scales.

It scales up to the most massive destructive objects

in the cosmos.

Let's examine the ultimate cosmic clash,

the black hole information paradox.

This is where the two supreme blueprints

of the universe go to war.

On one side, we have Albert Einstein's general relativity.

It is the physics of the macrocosm.

It describes gravity not as a force pulling things together,

but as the warping of the smooth,

continuous fabric of spacetime.

Planets rolling on a trampoline.

On the other side, we have quantum mechanics,

the physics of the microcosm,

which relies on discrete,

probabilistic states,

and the absolute unbreakable rule of unitarity.

Unitarity is a foundational pillar of quantum mechanics.

Explain unitarity force.

It states that the evolution of a quantum state

is perfectly reversible.

Reversible.

Yes.

If you know the exact quantum state of a system today,

you can calculate exactly what it will be tomorrow,

and you can calculate exactly what it was yesterday.

So information is conserved.

This means information the precise arrangement of particles

and their quantum states can never be fundamentally destroyed.

You could burn a book,

but theoretically, if you tracked every photon,

atom, and molecule of ash,

you could reconstruct the text.

Exactly.

The information is conserved just scrambled.

General relativity and quantum mechanics usually ignore each other.

Relativity handles galaxies,

quantum mechanics handles atoms,

but a black hole.

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violently compressed space.

When a massive star collapses into a singularity,

gravity becomes so immense that it creates an event horizon.

A boundary where the escape velocity exceeds the speed of light.

General relativity states that anything crossing the event horizon

is cut off from the observable universe forever.

It's gone.

And for a long time, physicists accepted that black holes

were just cosmic trash cans.

But in 1974, Stephen Hawking introduced quantum mechanics

to the event horizon.

And he discovered Hawking radiation,

which changed everything.

Quantum field theory tells us that empty space is not actually empty.

Pairs of virtual particles and anti-particles constantly

pop into existence and annihilate each other.

Boiling soup of particles.

Hawking realized that if this happens right on the edge of the event horizon,

one particle might fall in while the other escapes his radiation.

Because the black hole is emitting these escaping particles,

it is slowly losing mass.

It's glowing very faintly.

Over an incomprehensible amount of time,

trillions of years, the black hole will completely evaporate into nothingness.

Which triggers the paradox.

According to Hawking's original calculations,

this radiation is purely thermal.

It is completely random.

Meaning it contains absolutely zero information

about the matter that fell into the black hole.

Let me make sure the gravity of this is clear.

If you throw a diamond into a black hole,

okay, a diamond,

and you throw a block of coal into a black hole.

And wait for it to evaporate.

The radiation that comes out at the end is identical.

The universe has entirely forgotten the difference between the diamond and the coal.

The information is utterly destroyed.

It's not just scrambled, it's deleted.

And if information is destroyed,

unitarity is violated.

The mathematical foundation of quantum mechanics collapses.

You can no longer predict the future or trace the past.

We are faced with a catastrophic logical contradiction.

General relativity insists the information fell in

and the black hole evaporated.

Quantum mechanics insists the information

cannot be destroyed.

So how do we fix it?

To solve this theoretical physicist,

like Leonard Suskind and Gerard Hooft,

proposed the holographic principle.

The holographic principle.

They suggested that the information of the involving matter

isn't actually swallowed.

Instead, its quantum data is smeared and encoded

on the two-dimensional surface of the event horizon.

So the event horizon acts like a massive cosmic hard drive

storing a 2D hologram of everything that falls in?

Yes.

And as the black hole evaporates,

this information is subtly imprinted

onto the escaping, hocking radiation

saving quantum mechanics.

The information escapes.

But saving quantum mechanics creates

a massive problem for Einstein, right?

Yes, it does.

In 2012, a group of physicists,

known as AMPS,

analyzed this holographic solution

and found a new paradox.

The firewall paradox.

If the information is preserved on the horizon

and entangled with the outgoing radiation,

the mathematics suggests it would create

an incredibly intense wall of high-energy particles

just inside the event horizon.

A literal firewall.

A firewall of incinerating energy.

But a firewall completely violates a core

tenet of general relativity

called the equivalence principle.

Einstein said that if you are floating in empty space

or free-falling toward a massive object,

you shouldn't feel any difference.

A person falling past the event horizon

of a massive black hole

shouldn't even notice when they cross the boundary.

Hitting a wall of energy breaks Einstein's rules completely.

It is a zero-sum game of physics.

If you want to preserve quantum information,

you have to break the smooth space time

of general relativity with a firewall.

And if you want to keep a space-time smooth,

you have to let the information be destroyed

and break quantum mechanics.

The black hole information paradox

is the ultimate proof that our understanding

of the universe is fundamentally incomplete.

We have two incredibly accurate maps of reality.

And when you overlap them,

they catch fire.

And that friction that inability

to reconcile the observer with the math

brings us to the core glitch

underlying almost everything we've discussed today.

The big one.

The measurement problem.

The measurement problem is the dark heart of quantum mechanics.

As we discussed, the Schrodinger equation

is completely deterministic.

It describes a wave function evolving smoothly over time.

A particle existing in a superposition

of multiple states is mathematically pristine.

But the math tells us nothing about the collapse.

The equations do not contain a single variable

that explains why the superposition suddenly

snaps into a single concrete reality

the moment we look at it.

The math tells us the how.

It allows us to engineer

semiconductors, lasers,

and quantum computers with breathtaking precision.

But it is entirely silent on the why.

What physical mechanism dictates the transition

from probability to reality?

What even defines a measurement?

Is it a human eyeball?

A camera.

A rock.

Because the mathematics are silent,

physicists spent the last century

generating interpretations to explain the collapse.

We have touched on several already.

The Copenhagen interpretation championed by

Bohr and Heisenberg takes a pragmatic stance.

Observation triggers the collapse,

but the mechanism is irrelevant.

The math is just a tool to predict outcomes,

not a description of underlying reality.

Which is the shut up and calculate approach.

It works for engineering,

but it's philosophically unsatisfying.

You want to know what's actually happening.

Then we have decoherence,

pioneered by Wohschick Zurich.

This argues that a system doesn't need a conscious observer.

So no eyeballs required.

The wave function collapses

because the delicate quantum system

interacts with the messy macroscopic environment.

A stray photon bouncing off an atom

or interaction with air molecules?

Exactly.

It causes the quantum states to rapidly leak into the environment,

forcing the system to behave classically.

Decoherence explains why we don't see

macroscopic superpositions.

Why basketballs don't act like waves.

But many physicists argue it only explains the appearance of collapse.

It still doesn't explain why a single specific outcome

is realized over the others.

Why spin up instead of spin down?

Right.

Which brings us to objective collapse theories,

like the GRW theory,

or Roger Penrose's gravitationally-induced collapse.

These theories propose that superpositions

are inherently physically unstable.

Just as a radioactive isotope decays

spontaneously over time,

a superposition of a certain mass or complexity

will automatically and randomly

collapse into a single state.

Completely independent of any observer

or environment,

it just pops into reality on its own.

And finally,

we have the von Norman Wigner interpretation,

which brings us back to the most radical idea.

Consciousness causes collapse.

This suggests that the physical universe remains

in a state of suspended probability

until it interacts with a non-physical conscious mind.

The act of subjective perception

is the definitive catalyst

that forces the universe to materialize.

That is a wild thought.

If we look holistically

at the delayed choice eraser,

Wigner's friend,

pseudo-telepathy,

and the black hole paradox,

a clear narrative emerges.

These are not experimental errors.

No, they're not.

In the history of physics,

paradoxes are always the precursors to revolution.

Newton's classical mechanics

couldn't explain the anomalous orbit of mercury.

And that paradox necessitated Einstein's general relativity.

The ultraviolet catastrophe

in thermodynamics

necessitated quantum mechanics.

So the fact that quantum mechanics

is currently breaking at the seams

that our math requires the future

to influence the past,

or objects to separate from their properties.

Means we are standing on the precipice

of an entirely new framework of physics.

A theory of quantum gravity,

or perhaps a structure

we don't even have the vocabulary for yet.

A framework where space time is not fundamental

but emergent.

Where objective reality is fluid.

We are decoding a universe

that is far more malleable,

deeply interconnected,

and fiercely strange

than our biological senses can comprehend.

The classical comfort of a clockwork universe is gone.

We are participating in a reality

that is fundamentally relational,

waiting to be written by the act of observation.

And that brings us directly to you, the listener.

We have unpacked a massive

reality altering stack of physics today,

from particles communicating instantly across space

to the terrifying subjective immortality of the quantum gun,

to black holes tearing apart the laws of conservation.

It is a lot to process.

After navigating all of this,

what do you think?

This is the core question I want you to wrestle with.

Are we living in a rigid,

deterministic block universe

where time is an illusion

and every choice is already etched

into a four-dimensional crystal?

Or do you believe that human consciousness

plays an active fundamental role

in writing reality into existence

every single time we measure the world around us?

I want you to ponder this deeply,

and then I want you to leave a comment below,

what is your stand?

Which universe do you think we are actually inhabiting?

The perspectives you bring to this

might just be as illuminating

as the paradoxes themselves.

Thank you so much for joining us

on this incredibly deep exploration today.

We will keep analyzing the glitching threads of reality

and bringing the physics right back here to you.

Keep questioning everything,

stay intensely curious,

and we will see you next time on Thrilling Threads.

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