Holographic Cosmology with Leonard Susskind - part 2
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- čas přidán 31. 08. 2015
- Part 2 of a conference lecture given by Leonard Susskind on Holographic Cosmology.
The holographic principle provides an extraordinary new picture of quantum gravity and the universe. Ideas are gradually beginning to take shape on how concepts like holography (and other deep insights uncovered in the past two decades) may lead to new fundamental principles for cosmology. Undoubtedly new insights will emerge on long-standing fundamental issues in cosmology: the nature of the big-bang, the initial conditions and fate of the universe. However, these new approaches will most likely lead us in new directions and allow us to formulate the "right" questions. This informal workshop will bring together leading researchers working in cosmology, string theory and quantum gravity to exchange ideas on recent progress and discuss promising future directions. - Věda a technologie
![Leonard Susskind - Copenhagen vs Everett, and ER=EPR [2016]](/img/n.gif)
Multiverse assumes eternal inflation, debunking Hawking's 'no boundary theory' (my favorite) and assumes 'outside observer'-Anthropic Principle.
"Quantum" has a semantic duality included in existential-reflection, of a functional quantity and unified identity, the property all inclusive of the "verb to-be".
"Learning by doing", repetition of actions that include incidental language, is the natural adoption and adaptation of activity programs that an individual absorbs from their environment and this is the context of identity that is ephemeral in individuals, but enduring in the universal connection.
What you see is what you see and get, if it's information in common usage, and "understanding", standing under, is to be a component part of information.
thank you so much for uploading these!
Among the wonders of new camera technology, apparently there's a type that can turn a normally fuzzy depth image into sharp focus all the way from subject to background.
To illustrate chaos, technicians set up a video camera and CRT TV in a loop and watched the effects on the timing loop displayed. (Obviously a "once upon a time" story now)
If the situations were combined now and something equivalent to the "laws of nature" timing rules were done with the new digital gear...? so that filters and timing delays of selected information can be experimented with?
Because the operating principle of integrated timing is universal, but imagining or imaging it as an omnidirectional source turned "insideout", (like dismanteling a ridiculously complicated gearbox), is the seeing and sorting out of the "woods from the trees".
Or somewhere between Douglas Adams "Improbability Drive" and a Babbage Difference Engine... Quantum Computer.
Agreed, these are fantastic resources- thanks!
Ok, so the 'measure' of this video has audio and video imperfections and is not true observation of this event, but did I lose any information? ;)
Someone, please make a book out of the lecture and illustrations.
In temporal mechanical terms, e-Pi-i interference positioning resonance "works" by distribution of timing connection rates in (combinatorial?) wave-packages everywhere all at once, +/- frequency alignment, and because only resonance "sees" itself holistically, the cause-effect of exponential distribution in the eternal interval is to inflate+/- , the apparent volumetric space in lenghts of time duration, seeing the other side of the entanglement as if in echo, which is partly correct when the implied chaos of "causal" possibilities is condensed to frequency aligned "effect".
Aristotle "had a go" at saying this.., but it's necessary to reverse the implication sequence of synchronized effects, through the detection methodology of Physics, and that requires setting aside the actual un-observable mechanism of real, distributed time duration timing.
Names of phenomena identifiable by measuring are an attempt to fix a meaning in context, but if the context is the entire/holistic temporal spectrum.., the Big Picture, we are limited to WYSIWYG in Eternity-now. Eg That's the one-sided Entanglement identification of the Principle at the Singularity Now.., Hologram.
Imaginary possibilities are infinite, so only some degree of mental integration with the likeliest potential probabilities can be learned and applied, so the "learning by doing" format is preparation for the potential possible future programs in relevant education according to the available resources and applications. Mostly "flying by the seat of your pants" individually.
Yes, are photons particles flying around randomly or following the path of least resistance left by the previous photon traversal?
If the information must be conserved, and myself (including my mental and body configuration and consciousness) is information, what happens to that information when we aren’t aware of ourselves (if you are not aware of yourself, it would mean some informationis has been lost, al least during that state lasts).
For example state of sleeping, being unconscious for any reason or, taking it to the limit, being dead.
You've got the definition of "oberserver/observation" all screwed up (probably from shit pseudo science video's out there.)
An observation is simply an interaction between one thing and another thing. In the most simple terms, it's when one particle bumps into another particle. Your body is made up of a trillion, trillion of atoms, which are all bumping and zipping around hitting each other, a gazillion times every second. These collisions are observations. When these tiny collisions occur, much like a car accident, the atoms fly off in other directions (the amount of possible directions/states is called DEGREES OF FREEDOM) until they hit another atom somewhere else.
The reason we call these collisions observations, is because the atom/particles are the smallest thing we can actually use to observe things (Particles are literally the smallest thing we have access to...)
Imagine that we have to identify where a bowling ball is in my dark room, by using nothing else but another bowling ball. Only thing you can do is throw it in the room, and then wait for the ball to hit something and RETURN to you before you know that it hit something. If you managed to hit the bowling ball, then you only know where it WAS, because the act of you using your bowling ball to hit the other ball caused both to collide and shoot off in different directions. That's what observation is like in the realm of particles and small things, constantly throwing balls into a dark room to figure out where shit is at, and where it might be going.
Remove the whole idea of consciousness from your line of thinking. It has nothing to do with information conservation, let alone physics.
To answer more directly your question, you need to think about information in very fundamental terms. Information is never lost, and it's for the reason that technically, you could do everything you did backwards and you can arrive at a previous state like before.
So for example, if you make a cup of tea, and you add milk, the milk will create cool patterns and eventually come to equilibrium with the mixture. However, if you were a really good particle manipulating man or have an amazing particle manipulating machine, you could take every bit...every particle of milk, and reverse it's trajectories so that the milk would un-uequalize in the tea and re-enter the bottle. So in other words, as we move from the past to the future in time, everything that happens is information that gets stored in the past, and if we a scientist one day wanted to gain access to that information, all he needs to do is reverse the trajectories of all the particles involved.
Now based on that you should be scratching your head because it's super unpractical to actually recover information in this way.... This hard to access information is what's called Hidden information. ITS THERE for us...but it's HIDDEN because we don't have a practical way to gain access to it.
Nightmare Court Pictures Got it. Thank you. Information is stored in the past. That answers my question. Just thought that at a cuantum level, the arrow of time could be reversed, or, at least, some events could be explained as satisfactorily considering the time backwards. Is that true?
This is a bit beyond what i know...
But what i do know is that it is indeed possible to retrieve information from quantum systems via time reversal, however *in practice* we can not reverse time without creating entropy (which means adding heat to the system...or rather more information to the system) and in order to reverse the system to get the same information, all the particles involved in the event have to include the information that we are creating. You can read more about this here : en.wikipedia.org/wiki/T-symmetry
This process gets extremely complicated and is one of the reasons why hidden information is such a big deal, it is at the forefront of physics, and one of Susskind's major issues that he is trying to tackle.
But yes, there are a number of events that can be explained and things out there that predict a sort of time reversed solution. White holes are a popular example of this (you can also read about that in the link above) but like i mentioned, all time reversed theories are untested. Entropy is the biggest limiting factor to this, and entropy also happens to be the elephant in the room when talking about black hole dynamics, which also happens to be taking center-stage for the holographic theory (mainly what this particular lecture is about)
The purpose of the holographic principle is to explain why black holes contain their information on the surface of the black hole rather than in the interior.
The ADS CFT correspondence, which is the discussion what the black hole interior is even about reveals a solution, which is that the universe could be a hologram in whats called *anti-desitter space* (which is basically a representation that everything we can see in our universe lives on the boundary of some sort of geometry, and the interior of that boundary is what's known as the bulk.)
The cool part is that the explanation for black holes is that they exist inside the bulk rather than the surface like everything else. What we see from the outside is just a sort of ghost that we can't interface with.
This image here pretty much sums up what i'm trying to explain www.nature.com/scientificamerican/journal/v15/n3s/box/scientificamerican0206-74sp_BX3.html
When looking at the picture, everything we know, like the stars, our planet, human beings...whatever exists in the observable world lives on that bigger surface that looks like a cup. The bulk is again, a no mans land...where the black hole really lives.
@@waliaphellps1745looking into the complexities of chirality and polarization of light will give you more insight on those questions.
Thumbs down only because of the poor quality of this video (borderline unwatchable due to popping audio and unreadable slides). There are better versions of similar lectures to find.
A/V guy is incompetent.