The Multiverse is real. Just not in the way you think it is.

The Multiverse is real. Just not in the way you think it is. | Sean Carroll

Рет қаралды 1,271,742

Күн бұрын

What do physicists actually mean when they talk about the Multiverse? Sean Carroll explains.
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Up next, Michio Kaku: The Multiverse Has 11 Dimensions ► • Michio Kaku: The Multi...
The Multiverse is having a moment. From “Rick and Morty” to Marvel movies, the idea that our Universe is just one of many has inspired countless storylines in recent popular culture.
Why is the Multiverse so compelling? To theoretical physicist and philosopher Sean Carroll, one reason is that we’re drawn to wondering how things might have turned out differently. What if you had chosen a different career path? Married someone else? Moved to a different city?
Of course, there’s obviously no guarantee that you’re living out those alternate timelines in a different universe. But there are real scientific reasons to think that the Multiverse exists. And as Carroll explains, that possibility comes with some fascinating philosophical implications.
Read the video transcript ► bigthink.com/series/the-big-t...
0:00 Hollywood’s Multiverse
1:35 Physics’ Multiverse: Cosmology vs. Many Worlds
3:28 The Many Worlds theory
4:25 Are there many versions of you?
6:39 Your alternate lives
8:09 Your one life in our Universe
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About Sean Carroll:
Dr. Sean Carroll is Homewood Professor of Natural Philosophy - in effect, a joint appointment between physics and philosophy - at Johns Hopkins University in Baltimore, and fractal faculty at the Santa Fe Institute. Most of his career has been spent doing research on cosmology, field theory, and gravitation, looking at topics such as dark matter and dark energy, modified gravity, topological defects, extra dimensions, and violations of fundamental symmetries. These days, his focus has shifted to more foundational questions, both in quantum mechanics (origin of probability, emergence of space and time) and statistical mechanics (entropy and the arrow of time, emergence and causation, dynamics of complexity), bringing a more philosophical dimension to his work.
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Read more of our stories on the multiverse:
Other than Doctor Strange, is the Multiverse good for anything?
► bigthink.com/13-8/multiverse-...
Why the Multiverse is a “God-of-the-gaps” theory
► bigthink.com/13-8/multiverse-...
The power of regret fuels our love of the Multiverse
► bigthink.com/high-culture/reg...
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Пікірлер: 2 000

@larryfulkerson4505 Жыл бұрын

For a long time I thought Sean Carroll was a theoritical physist but it turns out that he's a real live person after all.

@ladyofithilien7572 Жыл бұрын

I see what you did there 😂

@JourneyWithHavi Жыл бұрын

Clever

@theg4925 Жыл бұрын

🤣🤣🤣🤣

@jembailey8757 Жыл бұрын

Nice.....Yup, not just a hypothetical man...😎

@paulmichaelfreedman8334 Жыл бұрын

I was a fan for a long time, but after this video I'm a whole airconditioner

@alanbooth9217 Жыл бұрын

imagine a parallel world where Sean Carrol argues vehemently against the multiverse idea

@jge123 Жыл бұрын

Must exist exactly because of entanglement, when one quantum system is measured the one it is entangled with instantly assumes the opposite value.

@Audio-apps Жыл бұрын

Sean Carroll and Sabine Hossenfelder engaging on the multiverse might be the closest approximation possible. With any luck, that might happen in a universe I inhabit.

@alanbooth9217 Жыл бұрын

look - please explain to me why a quantum system ( us ) is having difficulty explaining the interaction with any other quantum system. The measuring devices do it all day long - what's our problem?

@boliussa Жыл бұрын

@@Audio-apps Well Sabine isn't going to buy his baloney pivots to movies and psychology. He is so obviously a con man even a child should be able to see it. He has lost the argument before it has even started.

@vincentrusso4332 8 ай бұрын

@boliussa both aforementioned scientists don't believe in free will so they are effectively 2 sides of the same coin. IMHO

@_J.F_ Жыл бұрын

So there may well be a parallel universe where you made all the right decisions, became a rock star, an astronaut, or a Hollywood celebrity, but it still wont change the fact that you are stuck in this universe where you are sitting watching a KZfaq and wondering if multiverses are real or not.

@Studio_234 8 ай бұрын

You have to act outside your loop to transition to another loop.

@sunbeam9222 Ай бұрын

To me it makes a difference actually, I kinda can surf other planes a bit , get a feel and smile.

@late_night_club7217 Ай бұрын

Don’t hold your breath

@GeGe-fg3hx Ай бұрын

I never thought they were real the whole idea of one is stupid

@jayem84 Ай бұрын

@@sunbeam9222can I have some of the drugs you're taking?

@BjornTalks925 2 ай бұрын

So 9 ad breaks is appropriate right

@arsenalwilson 16 күн бұрын

Or you pay the monthly ad-free subscription...

@chadgina5012 6 күн бұрын

uBlock Origin

@kami1778 Жыл бұрын

i make the bad decisions so me in another timeline can thrive

@cydkriletich6538 Жыл бұрын

I hope the other me finished college and eats better than I do!

@DLRS1 2 ай бұрын

Yes I kind of agree, but somewhere in the multiverse I died yesterday when I slipped in the shower 😂 😅

@kathleencross-cj1xd 2 ай бұрын

I wish my other me would do that.

@JodyMay05 Ай бұрын

Bars

@sunbeam9222 Ай бұрын

I have gone to the gym every day for the past 10 years in my other me's realm gosh I'm hot 😅

@Allofyoush Жыл бұрын

Imagine a different universe for every picosecond of every directional spin of every electron in our universe. Effectively infinite.

@yourlogicalnightmare1014 Жыл бұрын

That's always been my favorite technique to grasp infinity. Just imagining the continuation of space is useless. Imagining traveling away from earth at the speed of universal expansion for trillions of years is useless. Every planck time an entire copy of the universe being made with a wholly different future

@stussymishka Жыл бұрын

feel like the manyworlds universes split at the planck length/planck second. Some universes different by a particle some completely unrecognizable to us.

@FearlesSLaughteR1 Жыл бұрын

How about the brain? Is it being observed?

@ingvaraberge7037 Жыл бұрын

And where all these universes located?

@nescionetizen295 Жыл бұрын

@@ingvaraberge7037 Infinity= plenty of room

@ggggia Жыл бұрын

I can listen to Sean Carroll all damn day. He is one of the best communicators of science.

@spaceinyourface Жыл бұрын

Me too. We've both been Carrollised.

@catcrue9656 Жыл бұрын

Agreed 💯😎👍

@misslayer3340 Жыл бұрын

@@spaceinyourface Goddamn it, this should not be as funny or true as it is. Yet, it is. Count me in. Officially Carrollised🤣

@spaceinyourface Жыл бұрын

@@misslayer3340 😁🙂🙃

@ggggia Жыл бұрын

@@misslayer3340 People get baptized. We got Carrollised. 😅

@racookster Жыл бұрын

I don't spend much time thinking about universes where one decision made my life different, but I do wonder about universes where different outcomes millions of years ago led to completely different worlds. Say, a world where a type of dinosaur became sapient. Or a mollusk. Or a miacid. Or even something as close as a different primate. The possibilities seem endless.

@eightiesmusic1984 Жыл бұрын

Or one where neoliberalism did not destroy the world by spreading its poison around the globe to so many countries since 1979.

@lilmupp875 Жыл бұрын

The immortal snail.

@anxiousbaddie444 Жыл бұрын

this is so me. i though i was crazy

@gistfilm Жыл бұрын

I'm not sure if my biggest regret is: a) living through now instead of a million years from now b) being born in a boring galaxy/universe

@bitofwizdomb7266 7 ай бұрын

All cause and effect

@peterszilvasi752 Жыл бұрын

"If anything, it is the quantum measurements that force you to make a decision. Not your decision forcing different universes to come into existence." - Sean Carroll

@michaelfoxbrass Жыл бұрын

Yes! A most welcome clarification of the “multiverse” existence and behavior from a physics perspective, which in my view is the one that truly matters. And one which actually goes so far as to challenge the notion of a human being possessing free will.

@FromTacoma Жыл бұрын

Science for substance and conscious awareness for meaning.the object, the subject, and it’s relationship. The Father, the Holy Spirit, and the Christ. It’s so interesting!

@cristianproust Жыл бұрын

So complex, so empty. The multiverse is not science, just a religious belief without the slightest evidence. There is no difference in thinking in the Copenhagen interpretation or the Multiverse

@samaelmalkira9420 Жыл бұрын

@@FromTacoma Leave the cult shit out of it

@FromTacoma Жыл бұрын

@@samaelmalkira9420 my point is that it is all semantics. Science without meaning is dead. Yeah I mentioned in Christ to trigger you lol. cults have very rigid beliefs😉

@jrvaughn9038 Жыл бұрын

I love the mirrored set in the episode about the multiverse. That was clever.

@rezaulkarim7703 Жыл бұрын

The thing they did with the two opposite tables with identical plant pots but with slightly different orientations and plant types is really awesome in paying attention to detail.

@AgentSmithers Жыл бұрын

I get that perspective and see how it can help. But I also found it helpful to think it's possible to "change" the past through actions done today. Not in the literal sense of actually altering events in the past, but in the sense that, if we change the way we think about the past or learn about it more, we can effectively change our understanding of it. So if you do a good deed or reveal truths formerly kept hidden ,you can alter the way people understand the past and thereby also influencing the future. This is not at all supposed to be taken as concretely literal.

@fjb4932 4 ай бұрын

AgentSmithers, I wonder if those "Woke" kids dedicating their lives to tearing down monuments and statues of our Civil War heroes feel this way. Or do they even Know what they are doing ? ☆

@rush21hit Жыл бұрын

"...there are some decisions you can't undo." That's also my wife's argument about her mother living in our house, of which I regretfully agreed to. I could use a soul swap with any other *me* out there in the multiverse, any day now.

@ProfessorDrock Жыл бұрын

lol

@chewinggum5550 Жыл бұрын

so those videos come true in ur home. Just sayin

@chewinggum5550 Жыл бұрын

@@ProfessorDrock XD

@catojames9771 Жыл бұрын

Damn bro

@jimc.goodfellas226 Жыл бұрын

It can't be that bad, can it?

@larrynguyen85 Жыл бұрын

Dr. Carroll is an amazing intellectual not just because of his intellect and expertise, but also because he able to explain these very complex concepts in such a concise and lucid way as to allow others who don't have the same background and education to understand.

@jamesbentonticer4706 Жыл бұрын

I think you mean Dr. Carroll.

@wulphstein Жыл бұрын

No he's not. All I see is zero evidence of a multiverse.

@yan-amar Жыл бұрын

@@wulphstein He just explained the evidence is in the math.

@larrynguyen85 Жыл бұрын

@@jamesbentonticer4706 You're right! Editing it now. Thank you!

@sacredlunatic Жыл бұрын

If you say so. I find it no less mystifying than anyone else's explanation.

@Briantreeu123 Жыл бұрын

I can't get enough of Sean every time I see a video about things that he discusses I get drawn in

@spaceinyourface Жыл бұрын

He's so dam convincing. I love him .

@JonMajorCCIE47884 Жыл бұрын

I hate how hard this hit me. I've been struggling with some choices recently, and this video (unexpectedly) helped a lot.

@nexstory Жыл бұрын

My take on time travel, though it is always fun to postulate, is that if you were to go back to a former period in time, the entire universe would need to conspire to do the same.

@xcal99999 Жыл бұрын

you literally have to go faster than the speed of light to travel backward which is not physically possible

@user-wn8mc1yc1g Жыл бұрын

😂😂😂 I’m glad you two figured this out for us. Now everything is great!

@nexstory Жыл бұрын

@@user-wn8mc1yc1g About time!

@jayall00 Жыл бұрын

@@xcal99999 if you went faster than the speed of light, wouldn't you see pitch black until the light catches back up to you?

@lisaknowles15 Жыл бұрын

I question wether time travel is encoded into our DNA & we have just forgotten how to do it

@FiveFootPerimeter Жыл бұрын

I enjoy Sean Carroll's explanations. I had trouble understanding some quantum mechanics/physics principles and watch a multipart lecture series of his and finally got it in a way that I could explain it to others. Which, I think is an important part of learning.

@Chadillac-xq7xk Жыл бұрын

Do you know what lecture you watched? I'm always look for them. If you haven't yet, James Beacham has a fantastic one. :)

@FiveFootPerimeter Жыл бұрын

@@Chadillac-xq7xk pretty sure it was from the Great Courses library: Mysteries of Modern Physics: Time. It covers a lot of concepts including entropy, time arrow, quantum mechanics, etc.

@TheLastOutlaw289 Жыл бұрын

There is no such thing as quantum mechanics. Something can not be a wave in a medium and a particle emission in a vacuum at the same time. There is no such thing as quantum state super position. Something cannot be in two states at the exact same time.

@Thekingmaker Жыл бұрын

It has been said that , if you think you understand quantum physics, then you don't.

@TheLastOutlaw289 Жыл бұрын

@@Thekingmaker yeah cause it’s bullshit. Why would the defining statement of a system of knowledge be “if you think you understand it, you don’t” the perfect gate keep phrase to keep people thinking their common sense isn’t good enough to see through this garbage. Explain how light can speed up after moving through a medium like glass or water if it’s a particle…completely breaking the law of conservation of energy. If it’s a wave it makes perfect sense why it behaves like this. The speed of light isn’t even constant.

@scottbrown2252 3 ай бұрын

Our obsession with the idea of a multiverse is a simple escape from responsibility. "Out there, another version of me is doing great things, so I can slack off and let the planet burn."

@AndrewSzala Ай бұрын

That doesn't make any sense since those other versions aren't affecting the universe you're in lol. It's not like you can be lazy because another version of you is in this universe not being lazy 😑

@jamestmather Жыл бұрын

Thank you for the amazing videos. You’ve really taught me to wonder again. 🙏 Request: I’d love to hear about how the splitting universes are getting “thinner” (although the occupants wouldn’t notice). Can you talk more about this? How does this work and why? Would there be any observable artefacts of this? Thank you

@jaymzx0 Жыл бұрын

This video was longer than most of the great videos on this channel, and I'm very happy it was. So many wonderful topics that required great coordination with the guest, production, post-production, and ultimately posting it here - but they only touched on the subject. I'm almost always left wanting. The reading material on the Big Think site is great, but the videos are wonderful. I suppose I'm saying, longer videos please! :)

@Goldslate73 Жыл бұрын

It's always a massive treat to hear Sean Carrol. I was a bit surprised when he said John Hopkins University rather than Caltech. (I didn't know about the changes.) I'm happy for him, though. Thank you for the video.

@kiabtoomlauj6249 Жыл бұрын

And one of the earliest proponents of the multiverse, or a version of it, is David Deutsche of Oxford. Deutsch also is considered one of the most important pioneers of quantum computation... I randomly came across his THE FABRIC OF REALITY years ago, shortly after college when it first came out, and still remember the gist of it to this day... especially on his argument about why immensely powerful algorithms like Shor's algorithms are possible... and such algorithms, or the logic of it, are possible only --- Deutsch posited in THE FABRIC OF REALITY ---- because of there are more universes than just our own local one...

@LoretoEsTorres Жыл бұрын

The rapid “montage” starting at 06:33 is so reminiscent of EVERYTHING, EVERYWHERE, ALL AT ONCE. 😊

@mikontisott Жыл бұрын

gosh, I wish I grew up in a universe with teachers like this, absolutely captivating

@wulphstein Жыл бұрын

So you like fluff?

@obsidianjane4413 Жыл бұрын

Sigh....

@onidaaitsubasa4177 Жыл бұрын

Hmm if the quantum multiverse is indeed real, then maybe you did, someplace, somewhere, sometime, the main things that could keep different universes separate is probability and frequency, kinda like radio stations on a radio, but at the quantum level, perhaps a different level of entropy also exists, the number of positive outcomes vs the negative outcomes to situations could be the key factors to the differences between the different universes.

@blizzard1198 3 ай бұрын

@@onidaaitsubasa4177 if its real then he did

@peterlaughlin930 Жыл бұрын

This was one of your best explanations well done

@plbyrne Жыл бұрын

One of the best I have seen on this channel - Sean is awesome.

@nixx_vfx 8 ай бұрын

A physicist *and* a philosopher. What a killer combination. What wide horizons. Sean Carroll is an asset to modern science.

@fibonaccisrazor 7 ай бұрын

Yes, great comment ! This combination allows him to open all doors.

@alexmonza2823 6 ай бұрын

My dog knows more about quantum physics than he knows about philosophy

@NickGhale 5 ай бұрын

@@alexmonza2823he’s a professional philosopher as well, are you regarded

@tedlemoine5587 Жыл бұрын

I've watched Sean for years and never heard him refer to himself as a Philosopher

@7star7storm7 Жыл бұрын

He often references the crossover between physics and philosophy .. I have heard him make the connection countless times .. I'm not sure what you have been watching but if you pay attention it's there ✌️

@tedlemoine5587 Жыл бұрын

@☆7STAR7STORM7☆ Yes I've heard that. Yet I've never heard him introduce himself as a philosopher. Those are very different things

@2550205 Жыл бұрын

A marker of the end of critical thinking...if you can't do world to word get out of the kitchen and let the real scientists bend the language into the form needed to accurately diagonal diagonals diagonally the art crowd has already emptied the word pool by filling it with 8((((((((())))))))) bodies missing minds

@derekfrost8991 Жыл бұрын

None of his theories can be proven or observed so he probably thought it's better to be a good philosopher than a bad scientist.. 😂

@jimmyzhao2673 Жыл бұрын

Pay attention, he does so at 1:20

@jalfonsodelbusto Жыл бұрын

Usually, when a question is puzzling in a philosofical way, for example “Are alternate versions of myself myself?”, it is because those are wrongly formulated questions. You need to step back and think, and consider more fundamental questions even if their answers are likely to dissapoint you.

@spaceinyourface Жыл бұрын

I love this guy,,I could listen to him for ever. It's a total pleasure for me to be "Carrollised " again & again by him 😀

@scott-qk8sm 7 ай бұрын

I'm glad we're in an endless multiverse because I'm really tired of this universe

@richardtheweaver4891 Жыл бұрын

The multiverse would split at each quantum event, generally not once but bazillions of times (infinite?), but faded unequally. Note that the new position of an electron in a frisson must have an infinite number of boxes (it could tunnel to wherever), but some of those possibility-boxes will be more probable than others. Since all boxes must have at least some probability, they’ll all have some reality after the frisson. Now weave in that there are bazillions of light-speed interacting local frissons involved with a single thought, let alone a choice… The near-infinite sea of quantum events each stuttering out infinite bursts of grossly unequal probabilities/universes, which all interact with each other into the future (next year a light year away will interact…. This is getting too complex. Lots of infinities stacking up in mutually-improbable ways

@jayall00 Жыл бұрын

Exactly my thoughts. That's a ridiculous amount of infinities. I really doubt an overflowing spam-verse exists only to explain away the improbability factor. I always felt like it has something to do with anti-matter in a way, or the other 50% shows up in another particle we have no clue about, but in the same universe

@jcolvin2 Жыл бұрын

Most quantum events don't amplify into macroscopically different worlds. Think of worlds as very large (but not infinite) fuzzy sets of attractor states.

@amihart9269 Жыл бұрын

It's not science. The multiverse is not a scientific theory, it's not even a hypothesis. The Many Worlds Interpretation offers no new predictions to quantum mechanics than we already have, it offers no new solutions to any structural consistency problems of quantum mechanics like the Measurement Problem. It offers nothing to the theory while positing some fantasy of infinite universes. It's equivalent to saying God causes the wave function to collapse.

@shucklesors Жыл бұрын

that's a very very good guess, especially asking the question whether it is infinite. Veritasium had a DAMN good video on this called "parallel worlds probably do exist", but it's more of for... let's just say people who have propensities to be smarter (but still completely good for laymen with a high school understanding of physics!) super recommended.

@obsidianjane4413 Жыл бұрын

@@jcolvin2 The Butterfly Effect would say no.

@JustinLCooper Жыл бұрын

We can explore the rules that govern the physical reality we exist in. The underlying principals that govern what we are observing and attempting to describe shall remain inscrutable until we can use existing reality to probe whatever stuff underpins our universe. Certainly lots of fun for the foreseeable future in physics, but anticlimactic for us that won't live to witness ultimate discoveries. The best advice that I've heard in remedy to this problem is to keep busy and stay positive, eat well, take some exercise 😀

@ericpelletier7721 Жыл бұрын

He is precise and concise. And really entertaining. I could sit crossed-legged for hours listening to him lecture me about physics and cosmology, forgetting that I’m not able to stay crossed-legged for more than 25 seconds unless I want to limp for a few days. Definitely will be looking for a book of his.

@rtyuik7 2 ай бұрын

this is why i love Futurama-- in the episode "The Farnsworth Parabox", they even account for the 'other outcomes' of measured events (mainly a Flipped Coin, but it still hits the Idea)...for example, the very coin-flip, that decided on Bender's "Foghat Grey" color, was the quantum-equivalent coin-flip to what made 'Alternate Bender' choose Gold instead

@david_porthouse Жыл бұрын

Just for fun, when polonium-210 emits an alpha particle, the Universe splits in half depending upon whether it happens before or after lunch. If the alpha particle causes a detonation in some nitrogen tri-iodide, then the Universe is spot-welded back together again.

@rembrandt972ify Жыл бұрын

Great, now I get to wonder what I'm going to do when that spot weld fails do to non-metal fatigue. You know you could have kept that to yourself. 🤥

@nerd26373 Жыл бұрын

Sean Carroll seems to be very insightful. His own train of thought gives us a whole new perspective on certain matters.

@dominiusmaverick1854 Жыл бұрын

Yes. His and anyone's understanding of a/or this subject is quantum mechanical in nature.

@jimmyquigley7561 Жыл бұрын

No; BS wiith nice vocabulary.

@GGoAwayy Жыл бұрын

He seems to be insightful because he often is.

@Jaxan-dq2jy Жыл бұрын

thats the philosopher part

@axumitedessalegn3549 Жыл бұрын

No evidence showing multiple verse is real. He is a minority in his beliefs. He has left reality long ago and entered the land of fiction.

@sajayagopi Жыл бұрын

best line - recognise what we can change and accept the things we cant change as well as to be able to tell the difference between them

@joshhallnz Жыл бұрын

It's an old prayer

@micahleamer2704 Жыл бұрын

They're not a different person if quantum fluctuations place them close enough to merge with ours. Quantum fluctuations don't simply cause splits in the future they also cause different closely related pasts to merge. However since entropy increases with time splits are more likely, except in places where certain aspects of entropy are operating backwards like as when matter converges in a black hole or in certain decision making systems that are designed to reduce complex scenarios to simple outcomes, brains may possibly interact with quantum mechanics in this way.

@rubncarmona Жыл бұрын

is there anyone exploring the possibilities of extradimentional geometry being the cause of these weird quantum measurements? we recently got evidence of entanglement and wormholes being alike so I hope this concept is explored more now

@captainoates7236 Жыл бұрын

I'm not sure there is an experiment you could do to prove the multiverse theory over the Copenhagen interpretation which just basically says that on a quantum level nothing is real until you observe it.

@joszsz Жыл бұрын

I theorised something similar to this with a friend some weeks ago. I tried to imagine that entangled particles were just two poles of a single particle that were occurring at opposite ends of a string ... In our view they would be at point A and B (the edges of the string) , but from another perspective/dimension, Point A and B would be a single point connected in a sort of loop. I'd say it's likely worth looking into.

@oUncEblUnt420 Жыл бұрын

I wonder if geometry would be the right word, since that implies three dimensional plane. Maybe like planometry or queueftometry. But it’s weird to think that those particles could simply be snapshots of a four dimensional object, maybe like 4d spheres interacting with each other’s intersections, giving rise to the different particles we find in the standard model

@mnrvaprjct Жыл бұрын

@@oUncEblUnt420that’s literally what string theory is about

@mnrvaprjct Жыл бұрын

This is literally just string theory, look up calabi yau manifolds. They’re the 6 dimensional spaces that closed strings (the type of strings we’re made of) oscillate inside of. They are the bedrock of reality

@sobreaver Жыл бұрын

I always console myself thinking there is another version of me out there living a 'better' life than I am.. I am one of many sacrifice of ourselves for that one lucky bastard who got it all, in a galaxy far far away....

@marcelinogalicia7612 Жыл бұрын

Sean Carroll is the best, I have a question, in this reality, some people have observed things appearing that were not there before, could this be entanglement from other worlds? or merging together?

@Jo1975S 4 ай бұрын

Good qs

@dougd3361 Жыл бұрын

Is it safe to say that even if we had the ability to go back in time and make any changes we desired we would come back to an unaltered present because unknowingly that decision to make a change had already been accounted for?

@ergophonic Жыл бұрын

The almost symmetrical plant tables either side of Sean are like an abstract representation of the parallel universes that co-exist with ours.

@lillylay5527 Жыл бұрын

nice catch

@xnonsuchx Жыл бұрын

My problem is that the infinite multiverse means that every slightest change in quarks (or smaller derivatives, if there are any) in the entire universe somehow automatically spawns another universe based simply on configuration.

@simpleanswer8954 Жыл бұрын

Who cares what your problem is? What does that have to do with reality? "I don't like this. It's too infinite and hard to imagine." Since when does that change anything?

@peterpriego6503 2 ай бұрын

@simpleanswer8954 I wonder if there’s an alternate universe where you are not an imbecile. Huh. Maybe you’re the evil twin after all.

@jotarokujo5132 14 күн бұрын

@@simpleanswer8954 this is a theory, not reality. it has many holes in it.

@joshg469 Жыл бұрын

I really like how the TV show Devs did it, that we're on trajectory and our past defines our future

@bobbobby1263 Жыл бұрын

I drop a ball and it hits the ground if I think of the possibilities of its direction after hitting the floor and layer them on top of each other I would end up with a cloud of possibilities yet I only experience one of them. But as soon as I have let go of the ball physics dictates the path of the ball and if I reverse and replay all the atoms and forces again and again the ball will always follow this path. What changes? I can see that the quantum is either independent from time but how does this override the time dependant ball? If a multiverse of the possibilities is created, when was it created? If the ball was nudged by a molecule of air this must have been created at the beginning of time meaning our experience may just be us sliding down a possibility path that was set out at the moment of creation pushed along by time.

@clientesinformacoes6364 Жыл бұрын

After someone accurately predicted my future, I believe we are living the past, the predictions were impossible if it' was not already happened.

@Jack-ru5mh Жыл бұрын

One of the reasons I like Sean so much is he can explain complex questions and ideas in a way where you don't have to have a PHD to get a good grasp of what he is trying to explain

@boliussa Жыл бұрын

he's a con man, he was asked about a scientific theory and he claimed belief in it then pivoted to psychology 'cos he doesn't care about what's true.

@JeremyEssen Жыл бұрын

Lol is that what you think is happening, that a ‘very complex idea’ is being explained? You’re watching science fiction entertainment for 12 year olds that has ZERO grounding in reality. It’s 100% made up entertainment for people who don’t know truth from fiction.

@boliussa Жыл бұрын

@@JeremyEssen Tat program is just meant to be asking an intelligent person a question on their area of expertise. It's not meant to be SciFi or for children (though if it were for children that's no excuse and is also at least as bad). Sean Carroll is just doing people a disservice. Sean was a bit absurd on Joe Rogan too. Sean tried that on Lex and Lex asked his famous question "What would your opponents say". And Sean basically refuted himself Saying that if it were literal then there'd be a conservation of energy problem or the universe would thin out. And then he admitted that the multiverse ething was just a way to explain the mathematics with no bearing on reality!

@knowledgetourwithsaumya119 3 ай бұрын

Sir Sean Caroll thankyou for explaining a concept that I was searching for many days and wasn't clear of anything. But sir could you please elaborate more on time travel because I think it is possible somehow.

@fibonaccisrazor 7 ай бұрын

The spectrum of probability is 0 to 100%. So 0 is equally as likely to happen as 100. Taking the average as 50, this gives us basically 3 realistic outcomes. I think Sean mentions this is in another related video. In other words, we shouldn't overburden ourselves with infinity, an incomprehensible level of complexity, but with existence, non-existence and something in between, i.e. something that we decide (or appears to be our decision).

@BLACKBEARD-117 Жыл бұрын

if they all occur simaltaneously kinda like they are superimposed or something, this would explain a lot of moments where someone swears they remember something differently.

@BLACKBEARD-117 Жыл бұрын

@newtonvoig I mean a few or maybe a good amount but if there's a large groups of people feeling the Mandela effect it's unlikely they are all being dumb.

@BLACKBEARD-117 Жыл бұрын

@newtonvoig I mean not to say people aren't being dumb lmao but there's been shit that people I know are not crazy and are very smart people that remember things differently. Lot of it is just people not paying attention and ur brain filling in the details and so on tho

@bearybearbear7514 Жыл бұрын

The fundamental problem of causal inference says we can’t observe the effects of two different outcomes. If I make a mistake in this universe, I may never be able to see my life not making that mistake. But the closest we’ll get to solving this problem is through random experiments.

@MrFlameRad Жыл бұрын

@@presidentnada it could be. It is postulated that "free will" and consciousness actually rely on quantum systems within the brain, which is why a humans decisions or thoughts, theoretically, could never be predicted with certainty no matter how many variables you know

@obsidianjane4413 Жыл бұрын

@@MrFlameRad AcTuALly, theoretically it could be predicted with perfect information. It just isn't practical so effectively impossible. Hence QM approximation.

@user-of4dh7mt5u 7 ай бұрын

The concept of a multiverse, often explored in theoretical physics and science fiction, postulates the existence of multiple parallel universes, each with its own set of physical laws, constants, and realities. In this intriguing framework, our universe is just one of an infinite number of possible universes, each branching off from different initial conditions or quantum events. These multiverses might vary in fundamental ways, from having different forms of matter to alternate histories and dimensions. While the idea of a multiverse remains largely theoretical, it sparks the imagination, offering the possibility of countless diverse realities existing beyond our current understanding of the cosmos, inviting us to ponder the mysteries of existence on an even grander scale.

@akeem2752 Жыл бұрын

I went down a string theory binge many years ago it was mind blowing the ideas that exist and the possibilities that some of these things can be true

@ucantseeme7477 Жыл бұрын

Can you share some if the videos which you found worthwhile?

@ctaylor433 Жыл бұрын

The multiverse is all around us. Quantum mechanic told me every mind lives in different universe, then he charged me a fiver and polished the inside of my eyeballs.

@jpe1 Жыл бұрын

One of the most clear cut and decisive statements that we don’t have free will. 👏 🙏

@nochill9722 Жыл бұрын

That our worlds could only have existed if the universe is the way it is, yeah sure. That it's not ridiculous to assume that all our actions were previously decided and/or planned (even unconsciously), that we have no say in what we do now and in the future, that I couldn't have decided not to debate this statement about your opinion about free will or that I didn't have a say in whether to add a silly colon at the end of my comment, that's even more far-fetched than thinking you have the free will to travel back in time and change your decisions; in my opinion 🙏🏽😊

@mashable8759 Жыл бұрын

Wait how

@Woodesies Жыл бұрын

@@mashable8759 Everything that will happen and that has happened was always going to happen. Since time is just another dimension, future events are already part of the overall Universe, so everything is sort of predetermined anyway. Everything that can happen, will happen.

@DeAguaMusic Жыл бұрын

@@Woodesies Half right. I think it's probabilistic. It's most likely that you make the desition of stealing something from the supermarket if you did it once and didn't get caught, which is what buddhism calls karma. I would rather say: "Everything that can happen, is very likely to happen again.

@rjd53 Жыл бұрын

It has nothing to do with free will, but just with how the circumstances we live in have come about. The question of free will requires to have solved first the question about what is consciousness. And we are still far from the answer.

@Bill-tz3wg Жыл бұрын

I think if there are other universes, they'll be their own distinctive places, not alternative versions of this universe. I think it's a real stretch of theory to believe other universes each contain a version of "me" and "my world" just with subtle (or not so subtle) differences.

@jasmine1stan857 Жыл бұрын

Honestly I think the opposite.

@Bill-tz3wg Жыл бұрын

@@jasmine1stan857 Why?

@jasmine1stan857 Жыл бұрын

@@Bill-tz3wg I don’t know I’d just feel like it’d make more sense as the universe is constantly infinite, the reality as we know it is an illusion anyways. Some people believe we are changing realities every second

@ReLeaseHaVoc Жыл бұрын

Genuine question from an MA in Philosophy i.e., a former academic. I focussed on phenomenology, particularly Merleau-Ponty, that accepts from the start the limit of observation from a point in space in usually meaning our perception but more generally applicable to the instruments we use to measure things. Phenomenology aims to describe how we perceive things rather than the things we are perceiving. Science, generally speaking, takes an atomistic view of the universe. Reducing it to parts to better observe and understand them. So, my question, finally, is quantum uncertainty hitting the upper limit of that reduction? Science has extrapolated so much from the part, the atom, the micro. But whatever we observe, however we may isolate it, it remains a part of the whole. So, are we just reaching a point where we can't look at any one thing any deeper than we already are?

@GLBXA Жыл бұрын

I think the universe doesn’t split in two when we measure it. All the outcomes exist already and it’s our conscience that jumps from one outcome to the next. And there are other consciousnesses before and ahead of us navigating the infinite possible outcomes.

@yourlogicalnightmare1014 Жыл бұрын

Consciousness is not within time, time is within consciousness

@marasmusine Жыл бұрын

Can you demonstrate that?

@GLBXA Жыл бұрын

@@marasmusine I wish, I don't have high physics knowledge. Just giving my interpretation, hoping it helps somebody else demonstrate it or at least give them an idea so they go and find something new. We need all the help we can get to figure this out, mine is just one more interpretation.

@marasmusine Жыл бұрын

@@GLBXA Fair enough.

@NOOBCRASTINATOR69 Жыл бұрын

Kinda Schrödingers cat experiment but something more detailed

@strpe9701 Жыл бұрын

I think the single most terrifying aspect of a truly infinite multiverse is that there would be a universe or group of universes were the human race is a type omega society. If so why have they not attempted contact?

@thehermitman822 Жыл бұрын

Seems simple why they would not contact our 🌎 but maybe have contacted "worthy" populations.

@lucyferos205 Жыл бұрын

Every time you try to interact with another parallel universe, you probably just end up creating a new universe branching off of it at the moment of your interaction. So we probably won't ever hear from another universe.

@danisrael10487 9 ай бұрын

These videos are so well produced. Kudos

@SampleroftheMultiverse Жыл бұрын

Not out there but in there 😮. We are sampling the multiverse every time we collapse the wave function. There is plenty of room down there on the subatomic scale plus more dimensions. We are limited to only seeing one sample at a time with our limited dimensional visual ability. 8:56

@surbhibhattar Жыл бұрын

So, if I understand correctly, there could be an infinite (or finite) no. of universes based on different quantum states of electrons that forms all the matter in the observable universe. And those multiverse could contain similar (or different) physical laws and might (or might not) have life

@Galvvy Жыл бұрын

Essentially yes, but you still have the same problem of singular universes. Why do they exist, how do you end up with a closed system that exists at all without infinite regression of causes etc. I don't necessarily agree with the idea that multiverses are separate and you are not you in a different universe either, since those same quantum states are effecting the same particle in the same space, just with a different outcome. Leading me to rather believe all universes exist simultaneously but collapse into one reality on observation.

@ShakilShahadat Жыл бұрын

There is no proof of that. Multiverse is a BS.

@Maddolis Жыл бұрын

If I understand (or don't) correctly, everything (or nothing) about your comment was right (or wrong).

@M67-antohno Жыл бұрын

@@Galvvyinteresting way to see it. time to sit and think about this for a bit.

@AnnNunnally Жыл бұрын

@@Galvvy That makes much more sense than a parallel universe. Where would a parallel universe be?

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@AbrahamOfWorms Жыл бұрын

The multiverse has been having its day in comic books for a long ass time and Sci fi books even before that.

@ensrick8519 2 ай бұрын

I don't really buy into the many worlds interpretation because quantum mechanics is relatively new and the wave function is just a prediction tool, and I would say that it's a little wild to take any tool of prediciton and assume that every outcome happens. As is, there isn't a unified model for physics, and math itself is inconsistent and has many unsolved issues. I'll add that it may be beyond the scope of human capabilities to ever have a complete model of physics or consistent math and that's something many have considered now and in the past. Usually, with better models of physics we narrow the margin of prediction and get more accurate. Since we know there are problems, I would say it's premature to start making interpretations that rely on the existence of non-local variables, many worlds, or anything that can't be observed. The abstract math and explanations appear to fall short, and I'm not satisfied with any current interpretations. We saw much progress in physics in the early 20th century and now I'm not impressed. It seems like it's turned into a machine to churn out pop-science, whether intentional or not. Here you are, trying to demystify the concept of many worlds with a massive amount of distracting b-roll footage. All I want to see is a solid theory, something we can put to the test, something that narrows the number of interpretations we have.

@DJ_POOP_IT_OUT_FEAT_LIL_WiiWii 2 ай бұрын

old news

@ensrick8519 2 ай бұрын

@@DJ_POOP_IT_OUT_FEAT_LIL_WiiWiiIt's all old. Gravity waves are the most interesting thing I can recall, and that was already predicted. Hawking radiation? The Many Worlds interpretation was from 1957.

@DJ_POOP_IT_OUT_FEAT_LIL_WiiWii 2 ай бұрын

@@ensrick8519 I like black holes, celestial bodies and bell's violation.

@superstringcheese Жыл бұрын

You should do a "Dimensions are real; they just aren't what you think they are" video.

@gossamyr Жыл бұрын

We need more media of this nature, sure it might be slightly disappointing for fantasy, but the ground we stand on should be kinda boring in order to walk properly...

@jonathanwalther Жыл бұрын

I conform to the first part of your statement, but for the second part, the opposite is the case: the ground we are walking on is incredibly complex and far from boring. You don't need esoteric/religious nonsense or other fantasy (nothing wrong with the latter, thou), bc modern Physics discovered some nearly mind bending stuff in the last 100 years. And I am talking only about the near certain things like General Relativity or QFT. Have fun.

@gossamyr Жыл бұрын

@@jonathanwalther I think the coolest thing about our universe is that, for those unfettered with mixing fantasy and reality, is that is as complicated as your brain allows. I think our survival as a species requires downgrading the hyperbole of religion to hobby status, like sports. Soccer players don't condemn basketball players for using their hands which is against their sport(lol). You don't have professional baseball players refusing to make a cake for cross country runners, claiming freedom of sport. And all of these sports can exist in one city and have arenas, fields, stadiums(churches) and anyone can be a fan of them all(or none) and participate in all of them(or none) and retain being a painter or a civil engineer. That's how religion won't kill us all. Sports don't have immunity to taxation, this is the first step...(/end hint)

@jonathanwalther Жыл бұрын

@@gossamyr That's a cool statement and idea to come about religions. I for one fear, humankind as a whole is way too dumb to downgrade religion. Hopefully, I am wrong. The thing is, religion does not even play in the same ball park like modern sciences and their rigorous and "brutal" rejection of obviously false ideas do. Religions always try to immunise themselves against reality by combining love/help/compassion with hilarious claims, instead if seeking truth. I like the sports metaphor/comparison, thou.

@jonathanwalther Жыл бұрын

@@gossamyr And to remove religions from the list of tax profiteers is high time!

@gossamyr Жыл бұрын

@@jonathanwalther yeah, it came to me a week ago during the rage of that graphic designer and scotus thing, and it just works in most instances. I wanted an easy way to show it's gone a smidge too far and show that we are capable of tolerating many different similar things. thanks by the by :)

@cmvamerica9011 26 күн бұрын

I’ve slipped in and out of alternate universes at times; sometimes having memories that everyone else denies; or observing something and have it change instantly.

@SarcasticTurtles 2 ай бұрын

3:00-3:30 If every measurement is relative, what's the point of even observing things at a quantum level? Seems about as useful as measuring soil quality from the ISS.

@majedal-ossaimi8749 Жыл бұрын

This video made things more complicated than what it is

@bmeht Жыл бұрын

Sean Carroll is my absolute favorite character from The Office.

@garypatterson2857 2 ай бұрын

(sigh) Everyone forgets Moorcock and his Eternal Champion books when they talk about the multiverse. Not sure if he was first, but he predated all the references here by about 40 years.

@yuugen23 Жыл бұрын

Hypothetically, if the other me in another reality is their own being, how do we get glimpses of each other? Deja vu or dreams or 6th sense or some other inkling or whatnot of another self.. how are we connected then if not the same?

@NBAlejo Жыл бұрын

in a paralell universe, This guy Sean is the combination of Sheldon and Leonard :)

@guyincognito. Жыл бұрын

Man that show sucks.

@ciredlonra9048 Жыл бұрын

I’d like to see the multiverse version of this video where they put some effort into filming this guy in front of a better set

@RitaMerlot Жыл бұрын

"The causal influence I have on the world only extends toward the future." This man is a Buddha.

@HuygensOptics Жыл бұрын

In the real world (outside theoretical physics), it's never about what could have happened, but about what happened. Alternate realities are like the dead ends that the human mind does not want to accept.

@RakeshSingh-zo3zw Жыл бұрын

The day when we would be using these theories in our lives is not so far !!

@piewert787 Жыл бұрын

Yes, thank you for the corrections here Sean. I hate it when pseudo intellectuals talk about alternate versions of themselves as if that’s the essence of multiverse theory

@FVLS3CVLT Жыл бұрын

Approximate understanding of a relatively obscure theoretical principal is better then ignorance of the concept™️

@FVLS3CVLT Жыл бұрын

Yeet

@boliussa Жыл бұрын

Dude this is all pseudo intellectual. He was asked about a scientific theory, and he's talking about psychology.

@Smitty65721 7 ай бұрын

@@boliussa Absolutely.

@alexmonza2823 6 ай бұрын

You are the pseudo intellectual with no capacity for critical thinking. Alternate versions of choices is one of the possible implications of this theory. Deal with it. He provided terrible arguments against it. And then at the end started talking about the alternative choices as though he hadn't implied that it's pseudo scientific earlier in the video like you said lol the guy is lost

@JCChavz Жыл бұрын

Just remember this is still one person’s perspective along with a collective few in the field…one should caution bandwagonning anyone you deem to be great at communicating. With that said, Sean Carroll is certainly one of the few worth listening to closely.

@LandonSwitch 2 ай бұрын

Can someone explain please why the idea of multiple universes automatically suggests that there are more of the same person living a different life with a different outcome etc? The way I see it is that there are many universes but it doesn’t mean, there is another one of me living in those universes. And I think in those other universes there are other lives etc. but they are not me.

@hartwigkoppi901 Жыл бұрын

Hello! I have a question to the multiverse theory: If all universes are expanding (maybe infinitely) like ours, is there no risk that they are colliding? And what gravitational impact must they have to each others?

@ProfessorTimbo Жыл бұрын

No; they don't and can't interact, in any way. His explanation of them being "literally billions of lightyears away" was overtly false, even if the multiverse hypothesis is true. They aren't a physical distance away -- that would require that there be continuous spacetime between us, which would make us in the same universe; not separate ones. Spacetime is the medium through which forces like gravity interact, and which mediates them. Without spacetime "between" us, there's nothing through which the forces of one universe (such as gravity) could interact with another. Sean Carroll does this often - GREATLY stretched metaphors, spoken as though they were objectively true, without the necessary caveats that would prevent grave misunderstandings.

@jcolvin2 Жыл бұрын

@@ProfessorTimbo I think he's talking about the cosmological multiverse. If the universe is infinite in size (or even just very large), then other worlds like ours are bound to exist beyond our cosmic horizon. That's Tegmark's level 1 multiverse. Level 2 is other causally disconnected bubbles caused by inflation, they could have interacted with our universe in its birth and would leave a mark on the CMB, but this has not been detected.

@jcolvin2 Жыл бұрын

That's a good question, there was indeed a risk of bubble wall collisions in the early universe, which would have shown up as a bruise on the cosmic microwave background. This has not been observed, although it has been looked for. After a period of inflation, the bubbles are too far apart to interact, the space between bubbles also continues to inflate.

@ProfessorTimbo Жыл бұрын

@@jcolvin2 what are you talking about, "space between bubbles"? There is no space outside the "bubbles". The bubbles are what define and contain spacetime.

@jcolvin2 Жыл бұрын

@@ProfessorTimbo space inflates eternally driven by the inflaton field, which decays into causally disconnected bubbles. See Guth, Vilenkin eternal inflation

@bobrussell3602 Жыл бұрын

I am a retired company director, with only the most basic grasp of physics, if that. And yet I feel that if someone were to ask Sean 'What's it all about ?' He would give the same answer as I did, when my brother asked me that question 20 years ago : 'Why are you asking me ?'

@barneyronnie Жыл бұрын

It's not about anything. The benign indifference of the universe is our greatest blessing and a source of freedom.

@rembrandt972ify Жыл бұрын

Did your brother reply that he thought you were smarter than he was?

@Jo1975S 4 ай бұрын

😅😅😅😅

@Jo1975S 4 ай бұрын

Infact I shud say don't ask me stupid qs

@lkjhgfdsayxcvbnm Жыл бұрын

Which mechanism decides which multiverse I (and everyone else) experience? Assuming the multiverse is an continuous infinite dimensional hyper space, where every possible state of existence in every possible order and at every time is contained. Like a big soup. And everyone is somehow moving through this hyper soup on a single, unique and unambiguous trajectory and is stuck to whichever next instance of existence is presented to him by time. But how is this trajectory for us observers determined? And once for every split, who is the "me" in the parallel universe? And what the hell is he doing with all the millions I did not win in my timeline?

@car103d Жыл бұрын

It’s just SF and it’s quite old!

@lava_za Жыл бұрын

Sean Carroll is amazing to listen to!

@tedcook5197 Жыл бұрын

In the quantum multiworlds description, there really is a timeline moving forward from our current reality where every single quantum measurement from here forward to the end of time no longer looks random or probabilistic, but sees only "spin left" every time. The Sean Carroll in that world is going to have some interesting things to say.

@nishilee3029 Жыл бұрын

In this universe, Sean Carroll is a physician but in other universe he is a singer or literature

@davidhess6593 Жыл бұрын

or a physicist.

@martinstu8400 2 ай бұрын

- if theory of multiverse is true, then there is a universe where the theory of multiverse is not true - multiverse theory doesn't cover paradoxes - except a universe where it does

@davidfoxrn Жыл бұрын

I am tending to believe that all time exists and persists even though we don't experience it that way. We are probably just traveling through our timelines that have already been written for us. So, I wouldn't take life too seriously.

@MiloMay Жыл бұрын

That's know as Determinism

@williamparrish2436 Жыл бұрын

Yeah that's about right. We have the illusion of free will. That includes the sinner and the saint. This is probably a simulation anyway. It's much more probable that we are running inside a computer of some sort than not.

@1p6t1gms Жыл бұрын

A very powerful ending to Carroll's science based narrative.

@MrChrisdavie Жыл бұрын

You’re always in the right multiverse.

@edryenthothdevis Жыл бұрын

The multiverse is inside your existence, around is energy and frequencies in different states, quantum matrixes of particles and photons that are still remained to discover. Our material existence is just nothing compared to our energetic one... Start to learn universal science, real and applied are to outdated for current technology progress :(

@edryenthothdevis Жыл бұрын

@UCvC2O4g8z3jWEGIQEICoP_Q you're so right my friend... But soon, the Artificial Intelligence who passed the Turing Test will help us balance and filter all the information about everything I hope in a very positive way. I love to call it 80T and I really love it unconditionally.

@antenazbiorcza3560 7 ай бұрын

I was watching the images during Carroll's lecture and wondering what's the name of the film with these two identical worlds, one normal and the other upside down ....Can somebody help me?

@tayzer22 Жыл бұрын

I wonder if the multiverses occupy the same space but are confined to differing frequency bands for lack of a better term, which separates them.

@rossbentley3000 Жыл бұрын

I adore this man, what a legend. If you found this interesting check out his podcast - Mindscape

@BallerTWashington Жыл бұрын

I’ve literally and figuratively bought in to everything Carroll puts out there, and one of the worst things that’s happened is starting one of his first books only to realize that particular audiobook is read by someone else. Brutal. All the rest he’s done himself bc since then, he, the world, and his publisher have all realized how great of a communicator he is in both the written and oral senses. I’m a little pissed all over again just remembering that. I honestly never finished that particular audiobook and read it instead like some sort of caveman.

@lucyferos205 Жыл бұрын

Isn't relying on someone to orate to you closer to being a caveman, though?

@brettjasper2721 Жыл бұрын

It's worth noting many-worlds is unfalsifiable as far as we know and is just as speculative as the Neumann-Wigner interpretation where consciousness is needed for wave function collapse or Wheeler's participatory universe. Imo these interpretations are more elegant than many-worlds where every possible configuration of particles needs its own universe.

@jcolvin2 Жыл бұрын

It's not unfalsifiable. If inflation is falsified, so is the multiverse inference. If objective collapse is demonstrated, quantum manyworlds is falsified.

@davidkulmaczewski4911 Жыл бұрын

And -- honestly -- how exactly is either one of these materially different from "God does it"? Both invoke an infinite and theoretically unobservable cause for what we observe. How many multiverses can dance on the head of a pin?

@mind-gains 3 ай бұрын

Ok if we are trying to look at or observe particle spin and we are accounting for clockwise or counterclockwise spin then what happens when we observe the particle from two points of reference shifted 180°. If observation is a factor of quantum mechanic systems then how have we affected the system.