Computing a Universe Simulation

  • Published on Oct 10, 2018
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    Physics seems to be telling us that it’s possible to simulate the entire universe on a computer smaller than the universe.
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    I’m not saying the universe is a simulation. I mean it might be - I’m just not saying it. And perhaps it doesn’t make any difference. Even if this is the prime, the original physical universe, rather than somewhere deep in a simulation nest, we can STILL think of our universe’s underlying mechanics as computation. Imagine a universe in which the most elementary components are stripped of all properties besides some binary notion of existence or non-existence. Like, if the tiniest chunks of spacetime, or chunks of quantum fields, or elements in the abstract space of quantum-mechanical states can either be full or empty. These elements interact with their neighbors by a simple set of rules, leading to oscillations, elementary particles, atoms, and ultimately to all of the emergent laws of physics, physical structure, and ultimately the universe.

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Comments • 2 231

  • Zeldas Mask
    Zeldas Mask 2 days ago

    The thing is, is even if we simulate a universe. How do we then step into one. Mmm which means whoever created us cannot enter our universe simulation. They are merely observing us...maybe an experiment gone wrong the simulation is so big they don’t even know we’re here

  • crazy talk
    crazy talk 5 days ago +1

    This moron pulls out so many random numbers out of his ass. so ignorant to even think you know without certain half that crap. mostly all made up nonsense

  • steve bob
    steve bob 6 days ago

    it mean the blackhole do computing and memory storge ???
    look like initial the simulation and run it !(outside can't interfere)

  • Zes
    Zes 7 days ago

    wrg, no such thing as funx or not

  • GuyI9000
    GuyI9000 10 days ago

    If its a type of quantumn computer using superposition it can simulate the universe and doesnt/wont be in this universe only, components of it can be in multiple universes

  • Dionísio Xavier
    Dionísio Xavier 13 days ago

    dude you need to lower the high frequencies of the video it sounds fucking awful as you speak! sorry!

  • oldtwins na
    oldtwins na 13 days ago

    Earth is flat! Easier to simulate.

  • Rocky Mow
    Rocky Mow 15 days ago

    1:14 whitest way of saying structure

  • Chris S
    Chris S 20 days ago

    Margolus- Levitin Theorem = speed limit of light. In my head anyway

  • Chris S
    Chris S 20 days ago

    It makes total sense and explains so much. Even explains and lends credence to the belief in a creator.

  • Chris S
    Chris S 20 days ago +1

    From pong to Oculus in 40 years, imagine another 40 years. Given modern technology, AI, and quantum computers the future is..................

  • Kavik Kang
    Kavik Kang 23 days ago

    It can be done on existing computers. "The Matrix" is not math or programming... it is game design.
    I am the inventor of the real "Matrix"... that nobody wants to hear about. But I can confirm that something very similar to what you all think of as "The Matrix" could be the true nature of the universe. Mine is an "functioning simulation of God", the holy grail of simulation design, that appears to also be a unified theory of everything. However, if the universe is "alive"... that would look identical too "The Matrix". NOBODY ON THIS PLANE OF EXISTANCE would EVER be able to answer the question of whether it is artificial ("The Matrix") or natural ("The Living Universe"). From this plane of existence, it would be impossible to tell the difference. My "Rube" is equally both things, depending on how you want to make it. Therefore, this question can NEVER be answered. The closest you could possibly get, was getting it down to the two choices of "The Matrix" or "The Living Universe", which is where I already am now with what I call "Rube". Whether it is artificial or natural CANNOT be answered by us in this "Place". Think I'm crazy if you want... but you just read the only person in the world who actually knows how "The Matrix" works!

    • Kavik Kang
      Kavik Kang 20 days ago

      @Michael Osamor That's great, I'm so happy to here that Rube will finally be useful to someone other than me. There is the Rube I can actually make games with, very "building block simple" but actually functions, and then there is "Ultimate Infinity Rube" which everyone else seems to call "The Matrix as the Universe". That's my perspective on it if that helps any more.

    • Michael Osamor
      Michael Osamor 20 days ago

      Kavik Kang Thanks, this will be useful for my Epistemology course.

  • Stay Jaya
    Stay Jaya 24 days ago

    why yes

  • Johm Smith
    Johm Smith 27 days ago

    Quantum is a retarded theroy

  • Basic Dos Gaming
    Basic Dos Gaming 29 days ago

    We are already in a simulated universe I honestly don't know how much more proof science needs.. our whole existence ìs meaningless

  • Lindsey DaSavage
    Lindsey DaSavage Month ago

    His head doesn't match his body

  • christopher kuhn
    christopher kuhn Month ago +1

    The Simulator Creator needs to render you a new VOICE.. Why on (Simulated) Earth PBS would have you narrating is crazy!
    ----> Simulation Theory Argument:

  • eltouristoduo
    eltouristoduo Month ago

    well I was going to post an invalidation of the stupid ass 'the universe is simulation theory'. But this does not quite seem to be quite that. So I suppose that is sort of a compliment to this channel.

  • monster
    monster Month ago

    yeah but what if the universe isnt "rendered" until you look at it eg the distant planets arent rendered until you take a telescope and look at them

  • wulphstein
    wulphstein Month ago

    If the universe is a simulation, then why are the mechanisms of life so complicated? See, this atheism crap is leading you in unproductive circles.

  • Medusa Skull
    Medusa Skull Month ago

    I give you a hint. We don't have to simulate the entire universe. We just have to simulate just the observable universe. Even that too is unnecessary. We just need to simulate one frame of the observable universe. Actually, even that is not necessary. We just need to simulate one frame for each conscious inhabitant. Even that too is still overkilled. We just need to simulate the uniqueness of one frame of each conscious entity. The rest can be coalesced into a single shared frame of information.
    When was the last time that you experienced doing something real? Actually, you didn't experience it, you remember that you experienced something and that memory wasn't even need to be vividly clear or precise either. Those past frames of your observation of the world surrounding you were just information that were being coalesced, compressed and stored on a single disc space that every other inhabitants of this universe are also shared.
    We don't even need a super fast computer to run the simulation either. The inhabitants of the simulated universe wouldn't know the difference. After all, how would you know if the universe had crashed for years and the creator didn't have enough money to fix it until now? It just got rebooted and continued on from where it left off?

  • Horney Kane
    Horney Kane 2 months ago

    For Finite Element Analysis or Computational Fluids Dynamics even for simple models, speed of computers is a huge issue. A course mesh saves computational power but would just produce pretty pictures.
    You can't just do one Universe size computation × the Universe age; rather, you would have to repeat the whole computaton repetitively with finer and finer meshes until your results converge, and even after convergence, you would have to check your results against the actual Universe because one missing variable could produce just pretty pictures.
    Any model sets up a huge matrix of simultaneous equations to solve (like 3 x, y, z equations you solved in grade school). The theory behind FEA & CFD is brilliant, but I can tell you from experience, the computer is likely to be slow and to crash. Modelling a when a dinosaur bone would break is a realistic project, not the entire Universe. Good Luck.

  • Han Solo
    Han Solo 2 months ago

    Its pretty obvious "deep space" or extra solar space is pre rendered . like the skyscrapers in grand theft auto . you can never get there because of the laws of the simulation so they just appear real .... THEY ARE NOT ..... this also explains the double slit experiments...

  • Han Solo
    Han Solo 2 months ago

    What about entangled pairs . do these not process information faster than light . i believe they doooo ... Lol

  • Naum Rusomarov
    Naum Rusomarov 2 months ago

    This is probably one of the more fundamental episodes as it shows that the universe might be informational in nature.

  • fdgxtg tybfgvg
    fdgxtg tybfgvg 2 months ago


  • Slotmech
    Slotmech 3 months ago

    See, it *is* black holes all the way down (and *up*)..! 😃

  • Pranav Limaye
    Pranav Limaye 3 months ago +2

    Yes, you can indeed make a computer capable of running Terraria IN TERRARIA.
    If you really want to

  • Josh Snyder
    Josh Snyder 3 months ago

    What if the purpose of the computer to get us to a point where we can make the same computer and it takes are Results Rather than waiting for that computer.

  • John Doe
    John Doe 3 months ago

    Can someone answer the following questions? 1. why would they simulate a universe this large, that’s still expanding rapidly. It could be a billion times langer than the observable universe or even infinite. Why not just 1 galaxy or even a couple of solar systems to save energy. 2. Why just the computations of 100 billion people, shouldn’t you take all the future humans and post-humans into account. 3. Since the physical laws are universal and there are quadrillions of planets in the visible universe alone the chances of us being the only (intelligent) life are zero, let’s face it. Shouldnt you take all their ‘neurological’ processes into account, together with all of our animals that are and have been. The numbers would be staggering or even infinite if our universe is infinite. 4. Even if this is a simulation, is that really relevant? Doesn’t it just shift the existential questions. Who created the first universe etc. 5. All of this is based on the idea that there’s virtually no limit to future IT developments. Also, while it’s possible to estimate the number of computations a human brain does per second, there’s still no evidence that a pc capable of doing that will actually have a ‘conscience’.

  • Henning Hoppe
    Henning Hoppe 3 months ago

    Who tf defrags a flash drive?

  • Om Sadasiva
    Om Sadasiva 3 months ago +1

    I am a poor schizophrenic and I frequently have ideas of Matrix, Truman show, solipsism etc

  • Nicholas Pdx
    Nicholas Pdx 3 months ago

    Universe sandbox 2!!

  • Cyril ViXP
    Cyril ViXP 3 months ago

    How can you store anything inside the object of density and mass of a Black Hole, if it is impossible to get anything out of it under the Event Horizon?

  • Lucy W
    Lucy W 3 months ago

    So, when particles appear and disappear in a vacuum, are those stray pixels? :)

  • TheRainHarvester
    TheRainHarvester 3 months ago

    I stimulated some life forms:

  • Justin Todd
    Justin Todd 3 months ago +1

    You dont need a powerful computer. Just slow or stop time until the next itteration. Kind of like a loading bar. To us even a million years loading would feel instant.

    • DinduNuffin
      DinduNuffin 3 months ago

      No even need to slow down anything. Just take whatever time you need for the next iteration because whenever it's done it will be done. If you set, let's say 1 second of time between two iterations, then no matter when it's finished the simulated beings will experience one second of time when it's finished. Their time is independent of your time, there is literally no connection, the same as with movies. When you pause it the movie stops, when you press play it starts.
      But I personally don't believe in this whole story. This feeling of consciousness I have (the ME feeling), 0s and 1s from a computer code can not create. Though computer code can create my body, other people and everything else in this Universe and create the illusion that the world is real, but I definitely know I am real, at least outside of the simulation.

  • Tom Glod
    Tom Glod 3 months ago can run Crysis?

  • Curtis Joseph
    Curtis Joseph 3 months ago +1

    The universe is an 8 dimension TV show being watched be beings that are ahead of us like we are that of an amoeba.

  • K1RTB
    K1RTB 3 months ago

    Can you run a virtual machine inside a virtual machine? Yes, you can.

  • makeitsupersized
    makeitsupersized 3 months ago

    What if sleep is just us defragmenting our hard drive?

  • Serhan Ozulup
    Serhan Ozulup 3 months ago

    We are thinking small. In old times people said it's impossible to go to Moon or making flying veichles. But we did it. We don't know what kind of power we will generate hundreds of thousands years from now. You can't imagine what kind of technology we will have.

  • Nuwan Yapa
    Nuwan Yapa 3 months ago

    Shouldn't this black hole computer exist outside the universe? Otherwise, it would have to simulate itself simulating the universe, and itself simulating itself simulating the universe, and itself simulating itself simulating itself simulating the universe, and so on... in a never-ending loop.

  • Mash Rien
    Mash Rien 3 months ago

    "Don't believe NASA sheeple, left and right are a conspiracy."

  • Simeon Higgs
    Simeon Higgs 4 months ago

    Maybe the invariance of the speed of light is due to the computer running our universe shitting itself when it has to process too much mass in a given area (gravitational time dilation occurs) or when objects move faster than it can process (velocity time dilation occurs)

  • Jayce Segler
    Jayce Segler 4 months ago

    The only argument against SIM theory is recreating the Universe, as if these guys have never toggled off clipping and glitch walked into a sea of unprogrammed nothing

  • RobertWF42
    RobertWF42 4 months ago

    If the Universe is infinite in size, as it very well may be, it won't be possible to compute a Universe simulation.

    • Jayce Segler
      Jayce Segler 4 months ago

      If its a simulation, its possible "Space" and the universe is more like an undeveloped area never intended to be explored. Like a "walk through walls cheat"

  • Mike_1 -
    Mike_1 - 4 months ago

    What percentage of the 7 billion on earth’s are NPC’s?

  • Saucy Ass Nigga
    Saucy Ass Nigga 4 months ago

    What if the sun is the computer???

    AJER ONESKI 4 months ago

    Earth is flat tho..there is no space

  • normskis69
    normskis69 4 months ago

    Could it be that black holes in the centre of galaxies are computing those galaxies, but due to their slower computational speeds; we therefore see the Doppler Effect in gaalaxies moving away from us. And could the black holes be connected by Einstein Rosen Bridges, like nodes in a quantum computer? I wonder if Dark Matter halos around these nodes are also connected.

  • Fredrik Svärd
    Fredrik Svärd 4 months ago +2

    The universe is as likely to be run on a "computer" as by steam, cogs and wheels or by a bearded man in the sky. Analogies with current technology are a tad self-centered.

  • TheRealGamer
    TheRealGamer 4 months ago

    There is a massive hole in this argument. It can’t be right or more likely I am misunderstanding it . If a black hole contains the maximum amount of information possible for a given volume on its surface area, and we have black holes in this universe with large diameters, each of which is storing information, then that implies there exists more information in the universe than can exist on these massive event horizons. These Black holes are in the universe after all and thus contribute to its information content. And there is all the other information too. So the required diameter must be at least larger than the diameter of the largest black hole in the universe. Which is a hell of a lot more than 42km. As an aside this also implies that the proportion of information in the universe that ISN’T on some black holes event horizon is infinitesimally small. The overwhelming majority of all the information in the universe is already stored on black holes

  • marc bell
    marc bell 4 months ago +1

    Except a thing cannot encompass itself. It would have to be bigger.

    • Morgan Phillips
      Morgan Phillips 4 months ago

      Yeah, I hate how video games are just of the devices itself. Every PC game being a game of a literal PC, sucks man

  • Bill Fletcher
    Bill Fletcher 4 months ago

    The more important question is, how do we install mods ?

  • Frank Pepper
    Frank Pepper 4 months ago

    its no t a crazy notion. it is a simulation i found the evidence i believe

  • Varunkumar Singh
    Varunkumar Singh 4 months ago

    How much can QUANTUM computers compute?????????Next video maybe.

  • Traxel Wilson
    Traxel Wilson 4 months ago

    Step 1 create universe
    Step 2 evolve a species to sentience
    Step 3 communicate with them once or twice
    Step 4 don’t reply ever again
    Step 5 enjoy your universe now your god

  • M
    M 5 months ago

    Well why would we even need the whole universe. Just half the universe is big enough lol

  • Winston Knowitall
    Winston Knowitall 5 months ago

    Mice were furious.