NAUKA I KVAZINAUKA (izvorište inspiracije za mnoga SF dela) > TEHNIČKE NAUKE, SAOBRAĆAJ, KOSMONAUTIKA

The Holographic Universe - Michael Talbot

**Ivan Bevc**:

Da li je neko cuo nesto o ovome? Drugar mi je skrenuo paznju na ovog lika i njegovu teoriju, cak mi je spomenuo da je Simmons pazljivo izucavao njegove radove kada je pisao Supljeg coveka.

Evo izvoda sa Amazona:

Despite its apparent materiality, the universe is actually a kind of 3-D projection and is ultimately no more real than a hologram, a 3-D image projected in space and made with the aid of a laser. Using this model, a world-renowned physicist and a Nobel prize winning neurophysiologist has developed a new description of reality. It encompasses not only reality as we know it, including hitherto unexplained phenomena of physics, but is capable of explaining such occurrences as telepathy, paranormal and out-of-the-body experiences, "lucid" dreaming and even mystical and religious traditions such as cosmic unity and miraculous healings. In part one, the author explains in simple prose the theory behind a holograph and its traditional applications to science. In part two, he shows the panoramic way in which the holographic model makes sense of the entire range of mystical, spiritual and psychic experience. Finally, in part three, he explores the implications for other universes beyond our own.

http://www.amazon.co.uk/exec/obidos/ASIN/0586091718/qid=1127071972/sr=8-2/ref=sr_8_xs_ap_i2_xgl/026-3754951-5250840

**Meho Krljic**:

Nažalost, ne uspeva mi da nađem svežiji post na ovu temu koga je okačio mislim mac, pa moram da rezurektujem temu staru milijun godina. No. Naučnici traže način da razjasne da li živimo u stvarnom 3D svemiru ili u holografskoj projekciji dvodimenzionalnog kosmosa:

Is it real? Physicists propose method to determine if the universe is a simulation

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(Phys.org)—A common theme of science fiction movies and books is the idea that we're all living in a simulated universe—that nothing is actually real. This is no trivial pursuit: some of the greatest minds in history, from Plato, to Descartes, have pondered the possibility. Though, none were able to offer proof that such an idea is even possible. Now, a team of physicists working at the University of Bonn have come up with a possible means for providing us with the evidence we are looking for; namely, a measurable way to show that our universe is indeed simulated. They have written a paper describing their idea and have uploaded it to the preprint server arXiv.

The team's idea is based on work being done by other scientists who are actively engaged in trying to create simulations of our universe, at least as we understand it. Thus far, such work has shown that to create a simulation of reality, there has to be a three dimensional framework to represent real world objects and processes. With computerized simulations, it's necessary to create a lattice to account for the distances between virtual objects and to simulate the progression of time. The German team suggests such a lattice could be created based on quantum chromodynamics—theories that describe the nuclear forces that bind subatomic particles.

To find evidence that we exist in a simulated world would mean discovering the existence of an underlying lattice construct by finding its end points or edges. In a simulated universe a lattice would, by its nature, impose a limit on the amount of energy that could be represented by energy particles. This means that if our universe is indeed simulated, there ought to be a means of finding that limit. In the observable universe there is a way to measure the energy of quantum particles and to calculate their cutoff point as energy is dispersed due to interactions with microwaves and it could be calculated using current technology. Calculating the cutoff, the researchers suggest, could give credence to the idea that the universe is actually a simulation. Of course, any conclusions resulting from such work would be limited by the possibility that everything we think we understand about quantum chromodynamics, or simulations for that matter, could be flawed.

More information: Constraints on the Universe as a Numerical Simulation, arXiv:1210.1847 [hep-ph] arxiv.org/abs/1210.1847

Abstract

Observable consequences of the hypothesis that the observed universe is a numerical simulation performed on a cubic space-time lattice or grid are explored. The simulation scenario is first motivated by extrapolating current trends in computational resource requirements for lattice QCD into the future. Using the historical development of lattice gauge theory technology as a guide, we assume that our universe is an early numerical simulation with unimproved Wilson fermion discretization and investigate potentially-observable consequences. Among the observables that are considered are the muon g-2 and the current differences between determinations of alpha, but the most stringent bound on the inverse lattice spacing of the universe, b^(-1) >~ 10^(11) GeV, is derived from the high-energy cut off of the cosmic ray spectrum. The numerical simulation scenario could reveal itself in the distributions of the highest energy cosmic rays exhibiting a degree of rotational symmetry breaking that reflects the structure of the underlying lattice.

Journal reference: arXiv

© 2012 Phys.org

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Edit: Slešdotovi čitaoci kao i obično imaju dovitljive komentare na ovu temu:

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For all we know, we're all criminals and have been sentenced to a new life to give us a second chance at redemption. Maybe "going to heaven for being a good person" means we keep living once unplugged and "going to hell" means a real death sentence at the time we get unplugged from this virtual reality.

And let me add that some people are failing miserably at saving themselves.

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Of course it could also be that it is a program which is designed to make us as bad as possible, in order to be useful for a despot's secret army. Those who remain good will then be plugged into another world which is much worse, and so on until the limit is reached where they turn evil as well.

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**Meho Krljic**:

I još malo špekulacija o tome je li naš univerzum zapravo kompjuterska simulacija:

Is the Universe a Simulation?

--- Quote ---IN Mikhail Bulgakov’s novel “The Master and Margarita,” the protagonist, a writer, burns a manuscript in a moment of despair, only to find out later from the Devil that “manuscripts don’t burn.” While you might appreciate this romantic sentiment, there is of course no reason to think that it is true. Nikolai Gogol apparently burned the second volume of “Dead Souls,” and it has been lost forever. Likewise, if Bulgakov had burned his manuscript, we would have never known “Master and Margarita.” No other author would have written the same novel.

But there is one area of human endeavor that comes close to exemplifying the maxim “manuscripts don’t burn.” That area is mathematics. If Pythagoras had not lived, or if his work had been destroyed, someone else eventually would have discovered the same Pythagorean theorem. Moreover, this theorem means the same thing to everyone today as it meant 2,500 years ago, and will mean the same thing to everyone a thousand years from now — no matter what advances occur in technology or what new evidence emerges. Mathematical knowledge is unlike any other knowledge. Its truths are objective, necessary and timeless.

What kinds of things are mathematical entities and theorems, that they are knowable in this way? Do they exist somewhere, a set of immaterial objects in the enchanted gardens of the Platonic world, waiting to be discovered? Or are they mere creations of the human mind?

This question has divided thinkers for centuries. It seems spooky to suggest that mathematical entities actually exist in and of themselves. But if math is only a product of the human imagination, how do we all end up agreeing on exactly the same math? Some might argue that mathematical entities are like chess pieces, elaborate fictions in a game invented by humans. But unlike chess, mathematics is indispensable to scientific theories describing our universe. And yet there are many mathematical concepts — from esoteric numerical systems to infinite-dimensional spaces — that we don’t currently find in the world around us. In what sense do they exist?

Many mathematicians, when pressed, admit to being Platonists. The great logician Kurt Gödel argued that mathematical concepts and ideas “form an objective reality of their own, which we cannot create or change, but only perceive and describe.” But if this is true, how do humans manage to access this hidden reality?

We don’t know. But one fanciful possibility is that we live in a computer simulation based on the laws of mathematics — not in what we commonly take to be the real world. According to this theory, some highly advanced computer programmer of the future has devised this simulation, and we are unknowingly part of it. Thus when we discover a mathematical truth, we are simply discovering aspects of the code that the programmer used.

This may strike you as very unlikely. But the Oxford philosopher Nick Bostrom has argued that we are more likely to be in such a simulation than not. If such simulations are possible in theory, he reasons, then eventually humans will create them — presumably many of them. If this is so, in time there will be many more simulated worlds than nonsimulated ones. Statistically speaking, therefore, we are more likely to be living in a simulated world than the real one.

Very clever. But is there any way to empirically test this hypothesis?

Indeed, there may be. In a recent paper, “Constraints on the Universe as a Numerical Simulation,” the physicists Silas R. Beane, Zohreh Davoudi and Martin J. Savage outline a possible method for detecting that our world is actually a computer simulation. Physicists have been creating their own computer simulations of the forces of nature for years — on a tiny scale, the size of an atomic nucleus. They use a three-dimensional grid to model a little chunk of the universe; then they run the program to see what happens. This way, they have been able to simulate the motion and collisions of elementary particles.

But these computer simulations, Professor Beane and his colleagues observe, generate slight but distinctive anomalies — certain kinds of asymmetries. Might we be able to detect these same distinctive anomalies in the actual universe, they wondered? In their paper, they suggest that a closer look at cosmic rays, those high-energy particles coming to Earth’s atmosphere from outside the solar system, may reveal similar asymmetries. If so, this would indicate that we might — just might — ourselves be in someone else’s computer simulation.

Are we prepared to take the “red pill,” as Neo did in “The Matrix,” to see the truth behind the illusion — to see “how deep the rabbit hole goes”? Perhaps not yet. The jury is still out on the simulation hypothesis. But even if it proves too far-fetched, the possibility of the Platonic nature of mathematical ideas remains — and may hold the key to understanding our own reality.

Edward Frenkel, a professor of mathematics at the University of California, Berkeley, is the author of “Love and Math: The Heart of Hidden Reality.”

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**Meho Krljic**:

The Man Who Invented the 26th Dimension

--- Quote ---How a scientist you never heard of made String Theory possible.

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**Meho Krljic**:

Dakle:

We are about to find out if our universe really is a hologram

--- Quote ---What could be the most important scientific experiment of our lifetime is about to begin. The so-called Holometer Experiment at the Fermi National Accelerator Laboratory aims to determine whether our perception of a three-dimensional universe is just an illusion. Do we actually live on a 2D plane, as a holographic projection? There is a well-established theory that states we are indeed living in a hologram, with a pixel size of about 10 trillion trillion times smaller than an atom. This has certain implications, some of which are quite sinister, even unspeakably horrific.

The argument about the nature of the universe hinges on something that 99.99% of people are not able to comprehend even on the most superficial level — namely, a comparison of the energy contained in a theoretical flat universe with no gravity and the internal energy of a black hole, and whether these two energy levels match or not.

Or whatever.

The point of the Holometer experiment is that it will be able to reveal via the pixelation effect if our universe is, indeed, a hologram. It will achieve this by putting two interferometers really close to each other, creating laser beams and observing possible jitters when they interact. If there are certain kinds of wobbles in the laser beams’ interaction, that means we actually live on a surface of a flat plain and only perceive our universe to be three-dimensional.

And this is where the cosmic horror seeps in. There was an influential piece published in Philosophical Quarterly in 2003, arguing that we probably are living in a computer simulation and this argument has nothing to do with the physical experiments now being carried out. The philosophical argument pivots on the point that if humanity continues surviving and computer technology continues advancing, we will inevitably reach a stage where it will be possible to simulate the entire planet and all of its living beings.

At some later stage, creating these simulacra of Earth will become cheap and common — just like building mobile apps. This means that ultimately there will be billions or trillions of simulations of the universe that offer nearly perfect fidelity. Nearly, but not quite, because at the heart of these fake universes there will be some pixelation if you burrow deep enough.

And those Fermi geeks are about to burrow deep. After we find out about whether we live in a hologram, we can all go back to focusing on Twitch’s valuation and whether the iPhone 6 will feature a sapphire screen. But deep inside, we will be shriveling in horror about the possibility that we live in a simulation and not knowing whether it’s some distant sequel to Sim City or Gears of War with a really long epilogue.

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