Is The Universe a Hologram? Brian Greene on Quantum Gravity & Black Holes

String theorist, mathematician and theoretical physicist Brian Greene talks about black holes, quantum gravity and the possibility of our Universe being a hologram. Brian Greene thinks string theory has potential to reconcile quantum gravity and general relativity.
He also brings attention to the question "Could the whole universe in fact be a hologram? This is not just a wild speculation but a theory that scientists take very seriously, even if they can not completely understand it.

The idea is that "everything is just a 2-dimensional projection" of the rest of the universe, and from this perspective, our three-dimensional world is actually a hologram.

According to Brian Greene, this is a hard idea even for physicists to fully grasp and they are still trying to really understand in detail what this would mean.

The holographic principle, came out of the study of the most extraordinary objects that are known to exist in the universe - black holes. They could hold the key to unlocking the next phase in our understanding of the laws of physics.

There’s a similarity of black holes and the big bang, in that both are space-time singularities where the laws of physics break down.

We think of the big bang as a moment when the entire observable universe was crushed to a very small size. So, according to Brian Greene, they’re kind of the same in some deep mathematical sense.

Stephen Hawking believed information that enters a black hole is lost forever. Many scientists believe that the information we see all around us is actually encoded on a big surface that surrounds us, a thin two-dimensional surface that sort of is like a hologram.

The holographic principle was given a precise string-theory interpretation by Leonard Susskind, a physicist at Stanford University.

According to this holographic Universe theory, our "reality" is also encoded in the structure of space itself. Like a normal hologram, such a universe would be fundamentally two dimensional.

#bgreene #Universe #science

Sources: "Brian Greene no Fronteiras do Pensamento Porto Alegre 2014" by fronteirasweb is marked with CC BY-SA 2.0.

A grand challenge in modern theoretical physics is to find a ‘unified theory’ that can describe all the laws of nature within a single framework – connecting Einstein's general theory of relativity, which describes the universe on a large scale, and quantum mechanics, which describes our world at the atomic level.

World Science Festival - Interviews with Brian Greene throughout the years

Mathematical discovery could shed light on secrets of the Universe

[FortitudineVincimus]

Simulation or not... I still have to go to work.

[cps_Zen_Run]

Every experience, memory, thought, and emotion happens in our consciousness. To have an experience we must be aware. Please enjoy your brief existence.

[shadesofbrown]

The holographic thing could be true because in reality we don't really touch anything, atoms don't touch each other Everything our whole reality is just a transfer of information through various mediums and they all need the observer / conciousness.

[bernieflanders]

Read all of Brians books. He articulates science in a very clear and comprehensively.

[andyp]

Another awesome video, really love the channel keep up the good work guys!! 👌

[alkhemetic]

The one thing that does not need a “theory” or hypothesis to verify its reality: We move and have our being in a holographically projected simulated universe. All we need to study is light in all its expressions and how we perceive it.

✨👁✨

“Cones and rods are two types of photoreceptors within the retina. This means that they are responsible for receiving signals (or images), processing them, and sending them to the brain. The cone and the rod serve different purposes to work towards the same goal: helping you see!”

And this is only a sliver of the electromagnetic light spectrum that the eyeballs could process.

Within this holographically projected simulated universe, every image that one sees is just a “signal” captured by the eyeball, in which the brain translates into a workable image.

The brain doesn’t see the actual image of anything, it only interprets the various photonic particles (pixels) it can, which is very limited.

On a quantum level, everything we perceive in life is just an simulation of light itself, and this can happen in analog or digitally.

Those who are throwing around “the simulation hypothesis” today are only referring to digital gaming technology to correlate their musings, while dismissing or ignoring the analog. It’s much more simpler that that.

The study of light in all its various expressions, and how the brain and its eyeballs function in relation to such light, tells us all we need to know to prove we’re living in a simulation.

✨👁✨

Now, there are two roads before us:
You can choose to remain as a Simulation, or you can choose to become an Emanation... for this you need to employ the technology of the science of Authentic Tantra.

[invespriatigation]

I read until the end of time, his science book, and it was very impressive.

[smileifyoudontexist]

I was born Inside the event Horizon of a black hole just like everyone else, we are “Frozen here together” in this time being …Everything is Frozen into time, the freezing is part of the embedding. People have a bias that a black hole is unlike the world around us

[TerryBollinger]

00:35 "This is not just a wild speculation." Yes, it is. Gerard 't Hooft ignited interest in 2D external-sheet holography with his 1993 fiat declaration that "One Boolean variable per Planckian surface element [of an event horizon] should suffice." [1] Realistic, physics-based bits require complex mechanisms to fight back quantum uncertainty and become _harder_ to implement at sub-atomic scales, not easier.

2D holographic sheets nonetheless approximate reality because quantum mechanics has been holographic since the 1920s. The founders of quantum mechanics quickly realized that the holographic equivalent of the Schrodinger wave function, called the momentum-space wave function, is just as fundamental as the xyz version. The word "hologram" did not exist then, so they expressed the relationship in terms of Fourier transforms. The quantum holographic relationship works in both directions since the xyz view is also the hologram of the momentum-space view of reality: a two-way or dual hologram.

Quantum holography is far closer to 3D-matrix or "Denisyuk" holography than 2D planar holography. Instead of speculative external 2D branes of paradoxical bits, vast swaths of ordinary matter encode more conventional forms of information to express the hologram. A new (April 2022) PRL paper [2] explores the fascinating problem of how the universe encodes itself holographically by looking at black holes in a way that flips the 't Hooft model upside down.

No one in the 1920s knew how to integrate momentum holograms with general relativity if they even thought to try. Thus, the cosmic branch of quantum holography remained in limbo until 't Hooft reintroduced the idea, albeit in a needlessly exotic fashion. In sharp contrast, quantum holography with a different terminology quickly exploded for condensed matter physics and remains vital to that field a century later. Folks interested in cosmic quantum holography thus might want to talk more to condensed matter folks.
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[1] G. 't Hooft, _Dimensional Reduction in Quantum Gravity._ arXiv Preprint Gr-Qc/9310026 (1993). See page 6, paragraph 2, sentence 4.

[2] X. Calmet, R. Casadio, S. D. Hsu, and F. Kuipers, _Quantum Hair from Gravity, _ Physical Review Letters 128, 11 (2022).
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Terry Bollinger CC BY 4.0
2022-04-16.1727 ET Sat

[PlanetXMysteries-pjnm]

"thank you for uploading these videos. Even if I'm having a hard night, I just put a relaxing astronomy video on and listen. It always makes my nights go much easier.

Thank you!!!"

[shawnmclaughlin]

Could black holes just be where whoever or whatever is outside the simulation collecting the info from the simulation?

[jackscarecrow]

in past space time i used to fall asleep trying to understand concepts from Brian Greene's talks "now" i fall asleep trying to understand concepts from a man trying to understand concepts from Brian Greene's talks . Is it turtles all the way down ?

[LesterWayneDobos]

Sophisticated along the lines of Greek Myth. It's no longer Atlas holding up the sky, or the devil in the underworld. My myth would be a quantum understanding of black hole curves in the time continuum to maybe further assess our time and place in it. Would be another one small step for man type thing except a deeper discovery of the cosmos which would do really well.

[thesoundsmith]

The OSI Information Theory model demonstrates one way a universe of pure vibrating energy fields could exist without the need of actual particles, part of this relies on the Holographic Principle. We are pure, unadulterated energy, configured so as to simulate mass and dimension. (So I believe, based on several credible sources - Bohm, Pribram, Susskind ...)

What is separating Blockhole from its surroundings?

Does the Blockholes are expanding or shrinking?

Why Blockhole's are round and not oval?

[DEXTERSONEMANBAND]

In other words we don’t know nothing…. So detailed explanations about black holes are ridiculous! We don’t know if they exist let go how they functioning.

[dpc]

When I put this steak in my mouth, the Matrix is telling me it’s juicy and tastes great.

[danwelsh]

Can someone help me I have a Question :
Leonard Susskind has spoken about the possibility of a black holes event horizon storing the information of all the matter that falls into it and that we may exist within such a structure..If this is so it would make sense that we exist bound to the event horizon as everything is numerical and mechanical in our perception of the known universe?..the problem I see is we had to fall into the void in the first instance and that would mean spaghettification had to occur tearing everything asunder and doesn't that mean that everything we know doesn't exist anymore and we are nothing more than the data stored on the EH?..
If this is a possibility then we can never see the real scale of things because time slows on the EH and time beyond that would be running at a different speed so moving towards it would be pointless as we are entangled in the mighty hold of a black hole that will eventually recede and cease to be?

[GUPTAYOGENDRA]

Vedant teaches that consciousness is singular. All happenings are played out in one universal consciousness and there is no multiplicity of selves says Erwin Schrodinger.

[cesardeluna]

That's is a good information thanks