Does Space Emerge From A Holographic Boundary?

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  • čas přidán 20. 03. 2024
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    Space seems fundamental. To build a universe, surely you need something to build it on or in. Many, maybe most physicists now think that the fabric of space emerges from something deeper. And perhaps the most existentially disturbing such proposal is that our 3-D universe is just the inward projection of an infinitely distant boundary. A hologram, or sorts. Let’s see how that can actually work, and what the holographic principle really says about the “realness” of this universe.
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Komentáře • 1,8K

  • @foxglovelove8379
    @foxglovelove8379 Před měsícem +370

    For the casual viewer feeling like they're having trouble following along, just know that I did my master's thesis on a topic based on the AdS/CFT correspondence, and I still feel like I struggle to properly wrap my head around all of it... Kudos to PBS spacetime for fighting to make it more accessible

    • @MarcoLandin
      @MarcoLandin Před měsícem +35

      I suspect even the most celebrated theoretical physicists have trouble visualizing much of this material, as it is literally in other dimensions and at infinite distances. Me, I'm just fascinated that there exist people who can figure all this stuff out. It's mind-blowing

    • @lethargogpeterson4083
      @lethargogpeterson4083 Před měsícem +1

      Thank you.

    • @bardsamok9221
      @bardsamok9221 Před měsícem +1

      "Masters" thesis is a bit of a pretentious misnomer. There is no mastery of any subject at that level, just highly simplified understanding so naive university students can figure it out while chugging beers and playing Minecraft.

    • @ZakiAsir
      @ZakiAsir Před měsícem +38

      ​@@bardsamok9221 bro dropped out 💀💀💀

    • @fusionfan6883
      @fusionfan6883 Před měsícem

      @@bardsamok9221Your bitterness seems to be an emergent property of your failure to launch😵‍💫

  • @LofiHobbit
    @LofiHobbit Před měsícem +1110

    Who else watches this weekly but has no idea what's being talked about? 🙌

    • @JoyThiefTheBand
      @JoyThiefTheBand Před měsícem +108

      Eventually, through audio osmosis, it will make some sense, lol.

    • @laurabutler9978
      @laurabutler9978 Před měsícem +35

      Sleep will absorb something, I hope.

    • @nunyabiznaz9593
      @nunyabiznaz9593 Před měsícem +73

      I’m usually very high…

    • @adamwishneusky
      @adamwishneusky Před měsícem +27

      Not always over my head but definitely this one! 😆

    • @ObsidianMonarch
      @ObsidianMonarch Před měsícem

      Social engineering stickers are in place to do away with abstract thought. Meanwhile kids today wouldn't recognize #PROPAGANDA if it was advertised on CZcams...

  • @thecodewarrior7925
    @thecodewarrior7925 Před měsícem +252

    The whole “size scales lead to a third dimension” thing never made any sense no matter how hard I tried, but your example of the “effective radius” and the differing shell sizes finally made it click! Absolutely wild!

    • @frun
      @frun Před měsícem +4

      What if there is only one shell, evolving in time, so called RG time or renormalization group time?

    • @Exodus5K
      @Exodus5K Před měsícem +10

      I didn't fully understand this part. Is the idea that the system treats similarly shaped configurations at different scales similarly, and this creates nesting levels reality at different scales which subjectively is perceived as 3d?
      Again, I'm not sure if I'm understanding this correctly, but if it is then why only 3 spatial dimensions?

    • @anonymousaardvarkinnigeria8721
      @anonymousaardvarkinnigeria8721 Před měsícem +2

      Legendary science communicators!

    • @maxmccann3030
      @maxmccann3030 Před měsícem

      My comment is @exodus

    • @DrDeuteron
      @DrDeuteron Před měsícem +2

      @@Exodus5Kyes, except formally similar, not colloquially similar.

  • @PenDanger2
    @PenDanger2 Před měsícem +57

    I understand less than 1% but I am still so happy that this dude is talking and I get to hear it.

  • @jajssblue
    @jajssblue Před měsícem +1666

    Those Physicists, always projecting. 😂

  • @saagartrivedi4190
    @saagartrivedi4190 Před měsícem +330

    Hey Matt et al., I've been a viewer since y'all started back in 2015. Never commented, and I wish I had the money to join the Patreon, but I just wanted to say that I appreciate how much this series breaks my brain every week.
    I'm a big Brian Greene guy, and, even so, I feel as though I understand so little but love the content so much I can't stop myself from coming back.
    Thank you!

    • @pbsspacetime
      @pbsspacetime  Před měsícem +101

      thank you for your many years of support!

    • @batmanchurch
      @batmanchurch Před měsícem +4

      Q​@@pbsspacetime

    • @cosmnik472
      @cosmnik472 Před měsícem

      R ​@@batmanchurch

    • @ragevsraid7703
      @ragevsraid7703 Před měsícem +3

      my brain is breaking so hard i might have to take this one in parts

    • @richardfarland
      @richardfarland Před měsícem +2

      Brian Greene is a smarmy New York ___ in comparison to Matt. There's no artiface with Matt. It's typical spartan, self deprecating Aussie delivery. With Brian, I can see his enthusiasm for teaching, but that's tarnished by the fatuous showmanship needed to pander to his Hamptons benefactors.

  • @pembrokeisland9954
    @pembrokeisland9954 Před měsícem +68

    That was quite interesting. Not sure how far you really can take the analogy, but coming from an IT background, that "multiple seemingly different models describing the exact same thing" made me immediately think how you (in principle) can describe an application by giving its behavior and functionality, OR by listing its source code, OR by describing how the electricity flows through the hardware circuits. Vastly different descriptions that seem to have nothing in common, yet all describing the exact same thing. Nor can you really say which of these is the "real one" as it's more a switch in your point-of-view and which description fits your purpose. If it's anything sorta-like this, yes, makes sense. Though, always have to be careful about analogies, especially when they are of something outside your own field of expertise 🙂 but can be a useful tool when trying to understand things.

    • @Hyperbolic_G
      @Hyperbolic_G Před měsícem +2

      This description made things click

    • @geoffwales8646
      @geoffwales8646 Před měsícem +6

      Also interesting to me that software is just the language encoding physical processes, so that we can manage those processes. It doesn't 'do' anything.

    • @SuperCharlie-fb4vw
      @SuperCharlie-fb4vw Před měsícem +1

      Thanks for pointing out these dualities in IT. Your point is so interesting!

    • @lucascipriano1665
      @lucascipriano1665 Před 16 dny

      It's the concept lf abstraction, when he used the analogy of 4 "pixels" clumping into a larger one to produce the same information, my head immediatly went there

  • @Dampfaeus
    @Dampfaeus Před měsícem +37

    You know a topic is truly complex is PBS needs to make a playlist for it 😀
    I mean, he explained the new paper about their possibly not being a Singularity at the center of a black hole in just one episode.

  • @napotronix
    @napotronix Před měsícem +646

    I watch this channel for ages now and usually I feel pretty smart because I understand the gist of most episodes pretty well.
    This episode makes me feel oldfashionedly stupid.

    • @ontoya1
      @ontoya1 Před měsícem +26

      That's exactly what I thought 😂

    • @nobody.of.importance
      @nobody.of.importance Před měsícem +59

      It's definitely one of the more difficult concepts in spacetime, it seems. I like to think I'm pretty good at this stuff but this whole episode was just the smell of my brain melting.

    • @HansStrijker
      @HansStrijker Před měsícem +15

      I came to the comments to write exactly this. 🤣

    • @das_it_mane
      @das_it_mane Před měsícem +2

      Which part didn't you get?

    • @HansStrijker
      @HansStrijker Před měsícem +75

      @@das_it_mane Yes.
      Well not entirely true. I understood the solar eclipse shirt section.

  • @theviscount-ke2ml
    @theviscount-ke2ml Před měsícem +67

    When I watch PBS Space Time, I really do think I should be outside bashing rocks together

    • @arsenelupiniii8040
      @arsenelupiniii8040 Před měsícem +2

      Brittish accent has always had that effect. They sell a ton a crap that way.

    • @JK7H
      @JK7H Před měsícem +4

      Reject physics, return to the wild

    • @LeeLynch1
      @LeeLynch1 Před měsícem +2

      @@arsenelupiniii8040 He doesn't have a British accent :)

  • @DangerousDac
    @DangerousDac Před měsícem +9

    This is the first video that seems to have actually succeeded in getting me to understand the whole concept of the Holographic principle.

  • @TheRABIDdude
    @TheRABIDdude Před měsícem +4

    Great episode! I watched all the old holographic principle episodes when they first came out and they were mind-blowing but very heavy and hard to follow. You did an incredible job summarising and re-explaining the whole thing here in simpler terms.

  • @blodbotina
    @blodbotina Před měsícem +149

    Can't wait to get reminded again next time why this is the best channel I've ever discovered.

    • @ericdavison6186
      @ericdavison6186 Před měsícem

      Have you got a minute? 😊

    • @Awesomes007
      @Awesomes007 Před měsícem

      Yeah. It's unreasonably effective.

    • @arsenelupiniii8040
      @arsenelupiniii8040 Před měsícem

      Brittish accent! Makes people feel smarter, when in reality it is ALL bs!

  • @supreetsahu1964
    @supreetsahu1964 Před měsícem +145

    I totally understood all that

    • @ColeDedhand
      @ColeDedhand Před měsícem +17

      Yes, so did I. Absolutely.

    • @enragedares5992
      @enragedares5992 Před měsícem +23

      I now have a complete understanding 😊 ...... of what a person who does not speak English experiences when watching a video in English 😂

    • @ShippyJack
      @ShippyJack Před měsícem +4

      Great, could one of you guys summarize it for me in your own words? Cause I have no sweet clue!!!

    • @rackmarkus
      @rackmarkus Před měsícem +12

      @@ShippyJack42

    • @LuisSierra42
      @LuisSierra42 Před měsícem +3

      @@ShippyJack star trek

  • @addyyyyg
    @addyyyyg Před měsícem +12

    First heard of Erik Verlinde’s entropic gravity/holographic universe theory probs 7-8yrs. ago in the context of him arguing that dark matter/energy are so difficult to detect bc they don’t actually exist, but rather are emergent products of space time geometry-it was so elegant & intuitive that I was sold then & there 👀

    • @lordemed1
      @lordemed1 Před měsícem +1

      'Everything we know., or will know will ultimately be emergent

    • @grayshadowglade
      @grayshadowglade Před měsícem +1

      I had exactly the same reaction from his lectures on it. The math isn't perfect because it challenges existing assumptions but the concepts are incredibly elegant.

  • @flo0778
    @flo0778 Před měsícem +10

    finally back to headache content, thanks

  • @Cruxvae
    @Cruxvae Před měsícem +266

    As somebody who majored in the humanities because I am allergic to math, I'm amazed by how much I've learned from this channel. I never thought I would understand so many of these principles, even on a surface level.

    • @OllamhDrab
      @OllamhDrab Před měsícem +24

      Heehee. Sometimes the ability to calculate or do math isn't the same skill as comprehending or teaching the material conceptually. Probably why I'm not in science as a career though, good with concepts and communication, would be miserable about all the mental effort it takes for me to memorize things or keep numbers straight. A Relativity class teacher once made this clear, being like, "You're the only one in the class that understands the material, but you remember two times three is six, right?" Oops. :)

    • @michaelearnest1983
      @michaelearnest1983 Před měsícem +53

      Well, according to the video, if you understand something on a surface level, then you understand it completely!

    • @davidwright8432
      @davidwright8432 Před měsícem +18

      I think you aren't allergic to math, at all. You're rightly allergic to badly taught math. A depressing amount of K-12 math is dismally badly taught.

    • @clarkthomas354
      @clarkthomas354 Před měsícem +3

      So basically we really don't know how the universe works.

    • @WREFMAN
      @WREFMAN Před měsícem +1

      @@OllamhDrabheehee

  • @toby8814
    @toby8814 Před měsícem +54

    As a layman that likes thinking about these topics but lacks the terminology, and in depth study, I find this channel uniquely inspiring. Keep up the good work, I might share this channel if it's alright.

  • @liamfinlay2039
    @liamfinlay2039 Před měsícem +3

    I can't help seeing our true source selves dance on the cosmic Plato's cave wall, where the story is flipped, the shadows are the casters of players, not the other way around.
    The projector is inside the cave, made from the soup of fundamental shadow code, projecting an emergent representation that we consider...
    ...Reality.
    Additional: Science channels like this have filled a void within me, thank you for projecting some wonderful education and perspectives my way

  • @TheAmazingBendini
    @TheAmazingBendini Před měsícem +4

    Extremely excited for this series of upcoming episodes!!

  • @sakismpalatsias4106
    @sakismpalatsias4106 Před měsícem +44

    Always a pleasure listening to Matt. He structures the concept in a understable method and doesn't dumb it down. Moreover, he provides the definition and notations; to keep up. Either to learn or to brush up . Cant wait to hear the reast of this series.

    • @NontrivialZetaZeros
      @NontrivialZetaZeros Před měsícem

      He does dumb it down, sorry.

    • @sakismpalatsias4106
      @sakismpalatsias4106 Před měsícem +2

      @@NontrivialZetaZeros yes obviously. But this is still a 15 min podcast; at best. Not the lecture itself. He is still tailored towards a specific audience. I mean how many people actually understand what a boundary or bulk is. Entanglement of the field, Lorenz transformation in QFT.

    • @phelan8385
      @phelan8385 Před měsícem

      ​@@NontrivialZetaZerosit's simplified, not dumbed down.

  • @jmunt
    @jmunt Před měsícem +22

    Dang, I didn't notice it on the last episode but the new credits visuals and music are incredible!

  • @worstedwoolens
    @worstedwoolens Před měsícem

    I'm very excited to see you guys picking this topic back up! Looking forward to this series.

  • @rachel_rexxx
    @rachel_rexxx Před měsícem +5

    Yay! This one was complex enough that it will require revisiting! 🎉🎉

  • @vu4y3fo846y
    @vu4y3fo846y Před měsícem +19

    This channel never fails to blow my mind

  • @philipmurphy2
    @philipmurphy2 Před měsícem +63

    Its PBS Space Time O Clock folks

  • @polarwind77777
    @polarwind77777 Před měsícem

    Great episode! Your explanations and the artist’s depictions make a formidable combination. Looking forward to the next ones you teased!

  • @Faifstarr
    @Faifstarr Před měsícem

    Best video in a long while for me. Been trying to understand this, this really helped.

  • @GeorgeJoubert-id2cv
    @GeorgeJoubert-id2cv Před měsícem +177

    Short answer: Yes
    Long Answer: Yes but longer

  • @jesuschrist2284
    @jesuschrist2284 Před měsícem +84

    Never look directly at a solar eclipse tshirt

    • @tylerknight99
      @tylerknight99 Před měsícem +4

      I hope Spacetime sells me ISO 12312-2 certified sunglasses so I can decide if I want to buy the shirt

    • @arsenelupiniii8040
      @arsenelupiniii8040 Před měsícem

      Never listen directly to brittish accent, lest you wanna buy some BS!

    • @jesuschrist2284
      @jesuschrist2284 Před měsícem +1

      @@arsenelupiniii8040 what about australian or newzealand accents?

  • @bobjason7540
    @bobjason7540 Před měsícem +6

    It seems less like we are moving to the future, but that the future is pulling us towards it in a fundamental way that affects the present.

    • @EleneDOM
      @EleneDOM Před měsícem +1

      I sometimes have a feeling like that, almost as if we are being physically pulled. I wonder if it's meaningful....

    • @grayshadowglade
      @grayshadowglade Před měsícem +1

      That's not a bad way of thinking about it. I like to think of it as the 'Now' falling into the 'Future' faster than the 'Past' can keep up. So we get this lovely illusion of a 3d reality within the 'Now' as we observe it's 'Past' like a wake on a cosmic sea.

    • @Om92OneMedia
      @Om92OneMedia Před měsícem

      @bobjason7540 , the branch of philosophy called Teleology builds out frameworks supporting the hypothesis you state here... Not that I've really dug into Teleology all that much, (yet)...

    • @giordano5787
      @giordano5787 Před 28 dny

      Yea​@@EleneDOM

  • @Geffde
    @Geffde Před měsícem

    So glad you’re covering this topic now. Can’t wait for the next episodes and really hoping you’ll dig into more of the machinery explaining the why and how.

  • @ZoonCrypticon
    @ZoonCrypticon Před měsícem +23

    My most favourite astrophysics presenter!

  • @XEinstein
    @XEinstein Před měsícem +3

    Oh finally! A Spacetime video about entropic gravity is coming up! Can't wait for that one.

  • @TeodorAngelov
    @TeodorAngelov Před měsícem

    Back with a bang! Somehow I understood this recap better than the individual episodes. Maybe I have levelled up or this channel has :) What a duality!

  • @BytebroUK
    @BytebroUK Před měsícem

    Aw Matt! It's been a while since you did one of your 'deep dives' into a subject. They are what first found me your channel way back when. Looking forward to seeing this one through :)

  • @ozzymandius666
    @ozzymandius666 Před měsícem +35

    I think we continue to misunderstand space altogether. From the fact that a spin 1/2 particle needs 720 degs of rotation to come back to its starting point, to the fact that entropy is proportional to area, and that the area of a one plank volume sphere is 4 plank areas. Also, that the "stiffness" of spacetime, that defines how fast gravitational waves move through it is related, in an unknown way, the the permeability and permittivity of space.
    We are missing something very fundamental, IMHO, and when we find it, we'll no doubt to a face-palm.

    • @tim40gabby25
      @tim40gabby25 Před měsícem +4

      "do a face palm" so annoying when the punchline gets scrowed :)

    • @seadog8807
      @seadog8807 Před měsícem

      Oddly enough, was watching the episode wondering if spinners would be a useful topological description in navigating a holographic dimension.

    • @davidhand9721
      @davidhand9721 Před měsícem +8

      Something I wish I was told a lot earlier about spinors: they are not geometric objects. They are transformations. You can stop wracking your brain trying to picture them; they just are not living in physical XYZ space. I highly recommend the series "Spinors for Beginners" by Eigenchris here on CZcams. You can understand them perfectly well without any modification to your understanding of space.

    • @davidhand9721
      @davidhand9721 Před měsícem +2

      To clarify, rotating a spinor 360 degrees turns its object all the way around, but the spinor itself is its opposite. The additional full turn leaves the spinor and the object both as they were.

    • @ozzymandius666
      @ozzymandius666 Před měsícem +2

      @@davidhand9721 The experiment has been done with electrons. Electrons transform as spinors, under SU(2), as opposed to SO(3).

  • @Josh-mu7qy
    @Josh-mu7qy Před měsícem +8

    Alright you did it Matt. I usually loosely follow (definitely not fully understand) a good 80% of what you talk about. This one was definitely under 50%.
    But please keep doing it. This is why we watch your videos.
    I'm going to watch the previous series on the holographic principle then re-watch this.

    • @TheJohnmmullin
      @TheJohnmmullin Před měsícem +1

      Leonard Susskind has several good talks that explain this more easily.
      “Easily”.

    • @Josh-mu7qy
      @Josh-mu7qy Před měsícem +1

      @@TheJohnmmullin lol I have seen them. He doesn't even attempt to dumb down. Granted he's typically speaking to colleagues.

    • @TheJohnmmullin
      @TheJohnmmullin Před měsícem +1

      @@Josh-mu7qy the math heavy talks (Stanford lectures, etc) I literally do not understand word one. He might as well be speaking in another language (which, in fact, he is).
      His black hole war talks are much more accessible - I grasped almost 10% 😂😂

    • @Josh-mu7qy
      @Josh-mu7qy Před měsícem

      @@TheJohnmmullin his talks on quantum entanglement and black hole entanglement are incredible. It's literally his theory and I've never heard anyone else talk about it. Would love for Matt to do an episode.

    • @TheJohnmmullin
      @TheJohnmmullin Před měsícem

      @@Josh-mu7qy surely there’s an episode on it?

  • @bigmouthfisheyes
    @bigmouthfisheyes Před měsícem +1

    Great videos. Always interesting to watch and contemplate.

  • @Qsie
    @Qsie Před měsícem +1

    Been a while since I've watched, I love your new intro!! 💜

  • @tobiasweber-ingold2560
    @tobiasweber-ingold2560 Před měsícem +5

    Quantum entanglement across many scales. Can't wait for that episode!

    • @frun
      @frun Před měsícem

      It may be, that there is only one shell, evolving in time. Your motion through the shells in radial direction gives the appearance of time - quantum entanglement. In this sense galaxies are past us.

  • @ChalkyWhiteChalkyWhite
    @ChalkyWhiteChalkyWhite Před měsícem +4

    exciting stuff on the horizon !

  • @willd4686
    @willd4686 Před měsícem +1

    Thanks Matt! This episode gave me some useful new terminology. True dualities and approximate dualities, super useful

  • @itemushmush
    @itemushmush Před měsícem

    you are an amazing communicator. not sure theres anyone else on the platform with such skill

  • @getreal2977
    @getreal2977 Před měsícem +4

    *reaches for the Aspirin bottle*

  • @ArielTriangle
    @ArielTriangle Před měsícem +3

    Reminds me of an experience I had once on Salvia Divinorum. Great video and explanation!

  • @marcm.
    @marcm. Před měsícem +1

    I've always been fascinated by this particular concept of the holographic universe, ever since it was first proposed in our modern understanding of physics. I'm very happy that it has gotten such a great explainer in a readily accessible video. You have done such a great job explaining so many concepts that I find so enjoyable to listen. It's like listening to one of your favorite stories, only this time told by one of the greatest orators and storytellers, it is just simply a pleasure)

  • @LracElosetab
    @LracElosetab Před měsícem

    Nice, pretty much what I was thinking, about emergence and entanglement and information theories. Excited for this upcoming series

  • @VisMajorr
    @VisMajorr Před měsícem +5

    Emergent gravity is the most important concept in modern physics, and most likely the true path to the theory of everything!!! Thanks so much for covering this Matt et al.!!! I am beside myself waiting for the next episodes! I sincerely hope you guys can shed some light on how the implications of ER=EPR and emergent gravity can reconcile general relativity and quantum mechanics WITHOUT invoking this fictitious "dark matter" stuff ;)

    • @lordemed1
      @lordemed1 Před měsícem

      there will never be a theory of everything. Bet the house on that.

    • @grayshadowglade
      @grayshadowglade Před měsícem

      @@lordemed1 Oh I disagree heartily... there is a theory of everything out there, we just probably aren't going to like it whole lot when we find it. 🙂

  • @Kyzyl_Tuva
    @Kyzyl_Tuva Před měsícem +3

    The best explanation of CFT and the Holographic Principle I have ever seen is Raphael Bousso’s

  • @LowellBoggs
    @LowellBoggs Před měsícem

    This is a fascinating episode with just the right presentation level. Thanks. I am looking forward to more episodes on this subject

  • @zacharywong483
    @zacharywong483 Před měsícem +1

    Fantastic visuals and script, as always!

  • @rhetorical1488
    @rhetorical1488 Před měsícem +40

    Theoretical physicist: i have done enough drugs to create a new theory

    • @kenbohlin1642
      @kenbohlin1642 Před měsícem +6

      The spice must flow.

    • @DrDeuteron
      @DrDeuteron Před měsícem +1

      @@kenbohlin1642mescaline. Spice doesn’t make theories.

    • @pakarpintu4917
      @pakarpintu4917 Před měsícem +1

      Jedi : may force be with you
      Gravity : but i'm not force
      Jedi : f#ck #ff

    • @angelmendez-rivera351
      @angelmendez-rivera351 Před měsícem +1

      @@DrDeuteron Don't underestimate spice.

    • @arsenelupiniii8040
      @arsenelupiniii8040 Před měsícem +1

      Like Miccheo Cookoo! That guys hair is more interesting than Neil Degrasse Tyson's PTSD!

  • @TheJamiescottie1
    @TheJamiescottie1 Před měsícem +5

    Kinda off-topic: Just read about the newly observed dark galaxy "Nube" which seems to be a highly challenging observation with regards to dark matter models, which have been discussed just recently on this channel... Might be a video opportunity for an update! Anyway, great content as always Spacetime! :)

  • @Krack2805
    @Krack2805 Před měsícem +2

    i usually get most episodes but this one Im gonna have to re-watch lol

  • @mike42441
    @mike42441 Před měsícem

    Hi Matt, great video! Can't wait for the next ones that continue the holographic story!

  • @peter5.056
    @peter5.056 Před měsícem +3

    It seems that the more we unravel the fundamental tangles of reality, the more knots appear to confound us.

  • @Itachi21x
    @Itachi21x Před měsícem +3

    Funny, I just recently watched one of your earlier episodes where you touched upon the topic. The AdS/CFT correspondence is one of the most interesting topics in physics.

  • @shiijei2638
    @shiijei2638 Před měsícem

    Got damn PBS, you guys have been around forever, glad to see you still here.

  • @suan22
    @suan22 Před měsícem +2

    Kudos for the animator trying to visualise emergent space!

  • @Sleepy.Time.
    @Sleepy.Time. Před měsícem +103

    we are just the result of Azathoth having a bad dream after to much spicy food

    • @DObscura-yi5es
      @DObscura-yi5es Před měsícem +11

      Ol' Az is gonna have an existential crisis when it realizes it's just a lonely Boltzman Brain

    • @nessuno5403
      @nessuno5403 Před měsícem +2

      Vindaloo?

    • @mattneville6601
      @mattneville6601 Před měsícem +1

      Too much

    • @hungrycrab3297
      @hungrycrab3297 Před měsícem +1

      @@DObscura-yi5es That boltzman brain will be shook when it realizes it's just a simulation

    • @skateboardingjesus4006
      @skateboardingjesus4006 Před měsícem +2

      Ah, a product of Azathoth's slumbering brain on spicy food?
      I'm glad our origins aren't from his gastrointestinal agitation.

  • @LisztyLiszt
    @LisztyLiszt Před měsícem +24

    What's with the foreboding background chord...?

    • @ringledinglebingle
      @ringledinglebingle Před měsícem +6

      Really though. I can’t concentrate on anything he’s saying because of it.

    • @kaia9154
      @kaia9154 Před měsícem +5

      I'm having a hard time focusing on the video because of this as well :(

    • @richardconway6425
      @richardconway6425 Před měsícem +3

      I think it's intended to make us feel even more insignificant and lost in this vast universe than we already are.

    • @rexmundi2986
      @rexmundi2986 Před měsícem +3

      Was that on purpose? I thought it was some kind of ghastly feedback, or audio artifact or something. Pretty distracting.

    • @Crootcovitz
      @Crootcovitz Před měsícem

      Was it always there? I think there was always some background sound there, but this one is particularly distracting.

  • @be5on
    @be5on Před měsícem

    It would be really neat if you guys could include references in the description field. It saves me looking around for them.
    Thanks for the great content.
    Keep up the excellent work.

  • @Vastin
    @Vastin Před měsícem +2

    I think that describing the boundary as 'infinitely distant' doesn't quite get at the relationship, though it does hint at it's inaccessibility. The relationship between the bulk and the boundary cannot be described by vectors, directions or distances. It's not like the volume of the ocean beneath it's surface or a ball with the universe 'inside' it.
    It's rather more like a 3D picture projected onto a screen from a projector - but as seen by the characters in the show, not by the audience watching it.
    Would the characters in the show be able to point in the direction of the projector? Not really, because from their perspective it doesn't really exist, even if they know there is a projector and that they are in a show. The projector generates their reality, but isn't really a part of it - there is no direction that the characters in the projection could walk to reach the projector, because they cannot leave the screen. The reality the projector resides in is fundamentally different than their reality, even though there IS a direct relationship between the two.

  • @billschwandt1
    @billschwandt1 Před měsícem +14

    I just wrote a paper on the stack about how the space between dark lines in the Double Slit experiment can be changed by what material you make the Slits from. And the dark lines aren't lines, they are a piece of a circle.
    Great presentation.

    • @subliminalvibes
      @subliminalvibes Před měsícem +4

      As a holographer, I am constantly fighting circular diffraction patterns and interference.

    • @billschwandt1
      @billschwandt1 Před měsícem +1

      @@subliminalvibes what's a holographer?

    • @TlalocTemporal
      @TlalocTemporal Před měsícem +1

      ​@@billschwandt1-- I assume someone tmakes holograms.

    • @quillaja
      @quillaja Před měsícem +4

      @@billschwandt1 photograph : photographer :: holograph : holographer

    • @subliminalvibes
      @subliminalvibes Před měsícem +2

      @@billschwandt1 like a photographer, but I make holograms with lasers.
      Are you familiar with holograms and how they relate to laser interference?

  • @highstax_xylophones
    @highstax_xylophones Před měsícem +7

    So what I got from this is a black hole all along has been that last little spot seen when old tvs were turned off.

  • @andyc8707
    @andyc8707 Před měsícem +1

    I'm just some uneducated dude, but through life, I have had theories and the more time passes the more those theories are being taken seriously, this is one of them!

  • @dave70a
    @dave70a Před měsícem

    Love all videos from PBS space time

  • @francisallard3077
    @francisallard3077 Před měsícem +10

    My head.... I was not ready for this.

  • @tates300monkyears4
    @tates300monkyears4 Před měsícem +5

    The holographic principle feels like Stoke’s theorem on coke

  • @meepmeep3275
    @meepmeep3275 Před měsícem

    Very excited about this series!

  • @xgozulx
    @xgozulx Před měsícem

    finally a good explanation of this, thank you so much

  • @lichewitz8905
    @lichewitz8905 Před měsícem +3

    I'm fairly well versed in physics, but this episode... I'm gonna have to study a bit to actually get it

  • @caribbeanchannel
    @caribbeanchannel Před měsícem +3

    I need a PhD to even remotely understand this......make another episode like this lol

  • @CoryVirok
    @CoryVirok Před měsícem +1

    Great Episode! Reminds me of the things Wolfram Physics is starting show - i.e. space as an emergent property of entangled computation. I'm not a physicist so hopefully I got that right. But I'd love to see you guys do an explainer on Wolfram Physics some day.

  • @Zdman2001
    @Zdman2001 Před měsícem

    I'm super excited for this mini series.

  • @holstorrsceadus1990
    @holstorrsceadus1990 Před měsícem +4

    Your universe is the projection I put on at night when my child goes to sleep. It gets turned off every morning and turned back on at 8pm in my dimension.

  • @seditt5146
    @seditt5146 Před měsícem +6

    It feels like gravity may turn out to be the result of standing wave nodes on the surface of a blackhole which we are the projection of. Basically, Faraday waves on the boundary and we are on a sheet of time falling towards the singularity while everything we look out towards appears to be expanding. Entanglement would be the result of these nodes as they are created by a single wavefunction on the surface and are the result of all wave functions interacting to create the effect of nodes and anti-nodes. It would suggest the CMB is actually the Event horizon we are looking back towards and using it we should be able to calculate various properties of the blackhole we are in. The CMB is so uniform as things reach maximum entropy right before falling in.

    • @Fangman123789
      @Fangman123789 Před měsícem +1

      Wait, so could that also explain why we see the beginning of the universe as infinitely/extremely dense and ours is not dense in comparison? Causing us to believe our universe started off that way when it was really just the projection from the other plane and ours has a different "beginning state" that would give us different constants possibly? Where ours as it became a supermassive blackhole the total density dropped? Or am I talking nonsense, because I admit the holographic universe and this holographic boundary concept is above me, whereas usually I feel with or above the curve a little on most concepts on this channel. Could that concept you said also implicate that due to the observance of multiple black holes, would that basically be the multiverse theory in a half true manner? Except rather than concept of all possible outcomes existing and infinitely varying universal constants instead you have multiple very similar universes due to them all being black holes. Also, would the predicted ratio of matter to antimatter, and its slight imbalance, at the creation of the universe still be a relevant meaaurement? If so, I wonder in what way it would manifest itself within the concept of reality you said. Again, sorry if these are dumb questions, Im struggling with some of these concepts lol, but it weirdly feels good. The more contradictions with our theories we find with the JWST and the harder to conceptualize these topics become the giddier it makes me, for so long I think many casual followers (or maybe just myself 😅) of theoretical physics, astrophysics, astronomy, etc have felt like many of the mysteries were solved, like we were almost done or close to the final step lol. But our knowledge is like an expanding circle, as we grow the circumference of our knowledge we exponentially increase the volume of our ignorance 😂. I stole that from somewhere and probably paraphrased it crappy but you get the gist.

  • @javie5080
    @javie5080 Před měsícem

    I love that PBS spacetime is becoming more advanced and using info taught in past videos to create a basis for new complex videos. Its like a class I've made it to the end of somehow.

  • @ReiHinoSenshi
    @ReiHinoSenshi Před měsícem

    So love how he still keeps the ending like you can feel any moment now he's about to say "Space Time" as I usually say it at my screen lol.

  • @mcorvus4530
    @mcorvus4530 Před měsícem +4

    Completely off-topic but a question I had:
    If bosons can be occupy the same space, and the W and Z bosons are more massive than even iron atoms, and we know that you can create a black hole from concentrating photons... Can W and/or Z bosons create a black hole if too many of them accidentally overlap? How many W/Z bosons would you need to accidentally make this black hole (even a small one)? And is this at all likely to accidentally occur?

    • @kindlin
      @kindlin Před měsícem

      The trouble is manipulating W/Z bosons into any actual location. They exist on such short timescales, you can do almost nothing more than identify their brief existence.

  • @verslalchimie5824
    @verslalchimie5824 Před měsícem +9

    I wonder if every conversation Matt has ends with him saying the word "spacetime" 😄

    • @expred
      @expred Před měsícem +4

      "I'll see you again soon, in another distant corner of this grocery-store's intergalactic... spacetime".

  • @murraymacpherson7528
    @murraymacpherson7528 Před měsícem +1

    Granted I've had a few drinks but this is the first episode for a while where it's been completely over my head. Not that my PhD was ever in physics to begin with.

  • @JoeKeeler1
    @JoeKeeler1 Před měsícem

    I love coming across one of your new videos. Make more if possible.

  • @DCDevTanelorn
    @DCDevTanelorn Před měsícem +3

    Please provide links to the holographic principle episodes in the description here. They aren’t all named in a way that would show up in a single keyword search.

  • @klaushoward9158
    @klaushoward9158 Před měsícem +22

    Everything you see is just the surface we've never managed to scratch yet.

  • @selfsaboteursounds5273
    @selfsaboteursounds5273 Před měsícem +1

    I've been waiting for you guys to cover this topic for 10 years. This is the true bleeding edge of quantum gravity

  • @avstern1958
    @avstern1958 Před měsícem

    Brilliant! As an architect i love thinking about the interplay between dimensions. The notion that materialization in 3 dimensions could emerge from infinitely scaling information surfaces... Like onion skins... Is amazing. Thank you for such a coherent explanation

  • @binbots
    @binbots Před měsícem +8

    We observe the universe in the present moment (wave function collapse) surrounded by the observable therefore, predictable past (general relativity) moving towards the unobserved therefore, probabilistic future (quantum mechanics).

    • @binbots
      @binbots Před měsícem

      @@acajoom I never claimed this is how reality actually works. Merely how we perceive it.

  • @mother3crazy
    @mother3crazy Před měsícem +6

    I have often found answers to ultimate questions lacking because in my mind, you can’t give answers if you haven’t even determined the appropriate questions. The questions posed in this video finally satisfy me as ultimate questions to be asking

  • @AlexanderGee
    @AlexanderGee Před měsícem

    @9:30 This is like the image pyramids we use in computer vision. It's cool to see the analogs of concepts popping up in different places

  • @thalianero1071
    @thalianero1071 Před měsícem

    This reminds me of smooth functions, green’s theorem, and differential equations; where some properties of a function over a region are reflected in other properties of that function on the region’s boundary

  • @ExecutionSommaire
    @ExecutionSommaire Před měsícem +4

    I propose the wolographic principle, where spacetime emerges from the devoted prayers of monks on a 2D map

    • @EvsEntps
      @EvsEntps Před měsícem

      😶‍🌫️: WOLOLOOOOO🕛🕧🕐🕜🕑🕝🕒🕞🕓🕟🕔🕠🕕🕡🕖🕢🕗🕣🕘🕤🕙🕥🕚🕦🌌☀️🌑🌕🌖🌗🌘🌍🌎🌏🌋🗻🏔⛰️🌊🦠🌿🌳🪼🐟🐊🦕☄️🦫🐒🦧🚶‍♂️‍➡️🛖🏘🏰🏭🚗🛩🚀🛰🪐!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    • @robertjones9598
      @robertjones9598 Před měsícem

      Waluigraphic?

    • @EvsEntps
      @EvsEntps Před měsícem

      I propose a rival theory: the Ayoyographic principle.

    • @dinocore1
      @dinocore1 Před měsícem

      Wololo

  • @rainrope5069
    @rainrope5069 Před měsícem +8

    Cool new intro!

  • @spiderjuice9874
    @spiderjuice9874 Před měsícem +1

    The spring equinox for North America occurred a few days ago on March 19, 2024, at 10:06 p.m. CDT. Good Friday occurs exactly 10 days after the equinox on March 29, and the total solar eclipse occurs exactly 10 days after Good Friday on April 8.
    In other words, Good Friday lies at the exact mid-point in time between the equinox and the eclipse.

  • @PhilippBrandAkatosh
    @PhilippBrandAkatosh Před měsícem

    This concept sounds very interesting to me. Thank you very much

  • @osmosisjones4912
    @osmosisjones4912 Před měsícem +3

    If wormholes were real wouldn't the gravity at One end pull on the other. They'd be unstable close less then anano nano second so not light would get through and stretched and contracted in so many different directions affects on light would be cancelled out.
    But paths of gravitational bodies would be altered areas of gravity would be linked much closer then would other wise

  • @TimWesson
    @TimWesson Před měsícem +8

    It seems to be that the ‘infinitely far away’ boundary is designed to fit Penrose's theory, where the boundary lies at the end of our time.
    But there's an alternative boundary we can consider that is more analogous to a black hole, which is the sphere where space is expanding away from us at the speed of light. This occurs since space is not a thing with a speed limit, unlike particles. As nothing can escape the ball defined within this sphere, one might expect similar properties to those of a black hole, such as the entropy being proportional to the area of the sphere.

  • @Elusis1
    @Elusis1 Před měsícem +1

    Would love to see you look into the physicist Nassim Haramein. This is exactly the thing he is working on. His scaling law and work on the Swartzenchild proton papers are very acclaimed and would seem a perfect fit for this channel. Hopefully you see this. I love this channel!

  • @kylebowles9820
    @kylebowles9820 Před měsícem

    Huh thats weird, I didnt get my notification about this upload, been subscribed for a long time