Видео

The exact thing about history and time occurred also to me. That’s a tough one

Icke evidensbaserade teorier så inte mycket värda.

Twaddle. The Multiverse is a belief, and as much as you want to believe in the god of the multiverse, Kermit the Frog, it doesn't make it a reality.

Well, damned

If each causal patch of the universe is computationally complete, then interaction and relations are unnecessary.

44:45 And yet, there might be an ultraviolet catastrophe for grav field, if you look into it. Realizing how it comes about might open possible and natural ways at quantizing grav field, different from forced, unnatural ones. After all, Planck never set out to quantizing EM field. Rather, he was forced and led to do so the way nature told him... Thats what natural means originally. It means the way nature decides, not us.

Майкельсона Морли 1881 - 2023 г завершенный на 50%. + 50% опыта ещё, возможно выполнить с помощью некруглых катушек с оптическим волокном в 6000 м. Гибрид устройства с габаритами 25 см, возможно применить в автотранспорте, при движении прямолинейно измерять скорость 20, 25, 30 м/сек. Исходя из прямого 💯% опыта Майкельсона Морли возможно доказать постулаты: Свет - это упорядоченная вибрация гравитационных квантов. Постулат 2. Гравитационные поля регулируют частоту и скоростью света в вакууме. Мне нужна помощь в совместном реализации изобретения. Вы ведите переговоры с специалистами по производству оптоволоконных гироскопов. Техническая консультация по ГИБРИД - гироскопу и оплата стоимости тестового устройства с меня.

Clear and intuitive. Thank you for sharing so valuable knowledge! By the way, where could I grab some exercises in order to training ZX-Calculus?

@1:13:00 just a comment for JO if he's following: non-commutative algebra is not a hallmark of quantum mechanics. The Clifford algebra for ordinary 3-space or 4-spacetime or any D>1 is non-commutative, we talk there about the bivector and pseudoscalar graded structure. What is the hallmark of QM then? I'd tell you it is, (1) entanglement structure (has to be non-trivial topology in spacetime, not merely non-commutativity), and (2) taking ħ>0. Having ħ>0 manifest is absolutely critical, without it the non-commuting generators have no bite, you'd still have perfectly precise measurements possible in principle, so Heisenberg would not be a finite non-zero constraint, hence you'd be doing CM or classical statistical mechanics. The interesting thing is how (1) and (2) could be related. Generalized probability theory (GPT) seems to suggest they are tightly related. Entanglement implies continuous transforms exist between pure states and the converse, and I believe (but not sure) that implies ħ>0, or that perfectly precise measurements for incompatible observables is not possible, which is near enough to the same statement, no? (For a dirtbag physicist. lol.)

@1:01:00 Check me, but I don't think Lorentz covariance is required for composite systems. The Lagrangians or states must be Lorentz invariant, not the whole system. Lorentz covariance is violated all over the place, just by sticking a particle of matter in empty spacetime. It's the processes governing the particle's time evolution, and whatnot, which are supposed to be Lorentz covariant, as well as respect other exact symmetries, not the physical system itself. Or think of it this way:" the symmetry principles are saying certain laws are universal, and homogeneity and isotropy of space are one such set. But any matter field in spacetime that's not a perfect homogeneous isotropic fluid, breaks this symmetry. Which is what we absolutely must do if we want to live! Life is all about violating symmetries as much as possible. Perfect symmetry is perfect death so-to-speak. However, physics is _defined_ by processes and laws that respect the perfect symmetries, which means life is not completely subjective and a chaotic hellscape Dormammu maelstrom. Think of it another way: the laws, like Navier-Stokes, governing fluid motion are so perfect there'd be no interesting fluid motion, since we'd just quote the governing equations and say "done with that!" What makes fluid mechanics non-boring are the initial value/boundary conditions, which are the source of all variety and interest. Without IV/BC you are lifeless abstraction.

@58:00 singularities are not "unphysical". If Nature has singularities then they're physical. The idea is that our mathematical models do not handle singularities well (or not at all). People are always confusing, deliberately or otherwise, the mathematics for the physics --- from Pythagoras to Bohr right through to Tegmark, and beyond. Heed the likes of Feynman, *_the mathematics is not the physics_* people.

@35:00 I thought the essence of Feynman's argument was that through very delicate procedures a superposition of a single mass could be *_amplified_* up to a detectable "clink & clank" at a detector. It's not the same as superposition of the entire spacetime per se, but that there must be an amplitude for the gravity field to be in two states. But that's perfectly fine for gravity wave disturbances and the like, provided gravity is not a graviton particle. You have to quantize gravity according to Feynman's argument only if the gravitational field is not spacetime, but a boson instead. At least that's imho. As with Young's experiment and all the rest, it's fine if electromagnetism is always a wave, waves can "be in two places at once", but not if it is actually a photon. The whole problem in QM is the matter waves (not the gravity waves) are probability amplitudes, not actual _physical_ field amplitudes, so if you consider them *real* then they have to decohere magically somehow to deposit a particle. Gravity will be fine and classical if it is not actually the graviton. I think this was Feynman's implicit assumption. He wanted gravitons moving on flat spacetime. I think he understood the essential absurdity of superposition of all of spacetime. Maybe? I'm not totally sure of course!

@21:00 this is where I have a bit of a problem. Entanglement is well-known to be monogamous. So you cannot entangle two planets. You can only entangle the composite parts pair-wise. A superposition of a single planet with itself is only possible via pairwise entanglement. (This is distinct to sum-over-histories, which is related but a different phenomenon). If you are serious about quantum gravity I think this sort of gedankenexperiment is not quite right. You do not want to consider matter being in superposition, that's just ordinary QM, rather what you need is an entire spacetime to be entangled with the entire spacetime. Globally. To my mind this makes no sense, so (to my mind) there is no "quantum gravity" proper, but it's much simpler than Oppenheim lays out. If you can fabricate a gravitational instanton or soliton, then it's spin=2, a graviton, and that *_can_* be quantized, same as for a photon, but it's not "quantum gravity". Gravity does not have to ever consider such instantons, they disperse too rapidly, are too weakly interacting, and only maybe at the early universe you might use them to explain some effects, but it is completely different to having all of spacetime in a superposition. People get thoroughly confused about these two distinct meanings to "quantized gravity". A graviton is not really quantum gravity, because not all of gravity is gravitons. 100% minus ε of gravity is gravity waves and curvature (+ torsion), not instantons.

Now everybody's talkin about this and the video has only 500 views!

If Galilean Relativity were to replace Special Relativity and instantaneous propagating fields were proven possible, then the Pilot Wave theory interpretation would replace the Copenhagen interpretation, due to its deterministic simplicity at explaining all quantum phenomena. I present to you theoretical and experimental proof of this in my short RUclips presentation, and the paper it is based on. I am a PhD physicist and this is the result of 30 years of research by me and many other independent researchers. William D. Walker and Dag Stranneby, New Interpretation of Relativity, 2023. ruclips.net/video/sePdJ7vSQvQ/видео.html

Interesting proposed formal solution to the non-locality phenomenon which IMO is another term for describing non-causality connected events at the known speed of causality dictated by the speed of light c in the vacuum. Of course as many times proven by history the problem could be of not being our formal (i.e. mathematics) effective interpretations of physical reality but a fact of our ignorance. Namely that they could be a pure physical explanation to non-causality and non-logicality that there is actually a type of unknown energy coupled with our spacetime. matter and light that has a faster speed of causality than c hence superluminal energy. Even wondered assuming spacetime can expand FTL which is actually observed and if spacetime was quantized what its quanta would be speedwise ?...Superluminal maybe? ... :)

I like the hidden variables probabilities. A particle or particle bundle that can hold quantum wave forms. The double slit being a localized EM pinch and defraction interference. But other Q.M. like. Quantum eraser and delayed choices and bell test. Make a realistic hidden variables theory hard if not impossible. But it gets back to particles and wave functions together with fields. Nice lecture. Thank you for sharing. 🐈‍⬛️ Probabilistic predictability. Particle production from quantum foam and gravitational waves in a energy density regime. Next generation high precision experiment. Testing quantum foam and particle production rates to energy density regimes and gravitational waves. That will tell a story.

He makes no sense whatsoever. There is exactly one world. ;-)

This was an amazing talk, excellent presentation!

Starts at 2:25

[45:13] What is wrong with probability?

Super helpful talk!

I had not heard of Professor David Deutsch until a few days ago. I'm so pleased to have discovered this brilliant scientist.

Very interesting and in some ways related to problems I've been working on about how hatching processes in eggs of vertebrates produce their results, creating new individuals with both enormously complex physiologies and also useful kinds of knowledge available for use shortly after hatching, without requiring any learning. I wonder whether Deutsch has thought about that and published something I could look at. A different thought triggered by this recording is that all the questioners were male. That worries me -- does it reflect on the current state of education in fundamental physics and how students are motivated to apply, or how they are selected, or ....??

Omg I love the host's reaction to the final question. He was like "well damn."

Fantastic interview Mert, and it's always hugely valuable to hear what David has to say.

Welcome David!

🤗🙌💪🙌👍

the earth flat bob lazar legit

Awesome!

Can someboy provide a link to something related to the "dictionary accounting argument"? It's ungoogleable.

Great talk as always!

New David Deutsch! Thank you

The talk begins at 9:04.

Are there inverse comparisons of vectors to neutralize a bias of information for natural quantum objectivization of subject matter? The math looks good for it but im not sure if the equations are applied in an intuitive function. It looks to only carve intelect ?

Talk starts at 8:17

Starts at 9:24

Anthing that moves in space it creates gravitational wave.

Electron itself is changing shape creating gravitional wave in space.

There are two waves one is gravitional wave travelling out from centre another is electron n positron wave travelling in gravitional wave.

Quantum mechanics at asymptotic limits can be used to rationalize almost anything and consider an issue of science fraud whereby an integrated circuit can be hidden in a blob o solder similar to red mercury polywater to remember Blondo of France who claimed "N-rays", Tesla who claimed electronic noise "were voices of Martians" similar to L Ron Hubbard's E meter, and Kelly's "Aether energy" similar to Orgone Rays.

"Steam Punk or Gas Light" how society has abandoned the future for retro futures. Even worse "Harry Potter", Tolkien, and D&D popularities of primal superstition.

Completion of what? The completion of Copenhagen is quantum field theory.

Interesting.

The talk begins at 9 minutes into this recording.

Time Theory You are a Time Mechanic! Time lines - Infinity - all information What is the universe? The universe consists of pure - Information - is the universe. What is information? One bit of information is a technology Two bits of information create a new independent information- a new information structure What are atoms or matter? Structures of information or better, technologies! One technology = one individual atom Two technologies make a new technology A - new structure made up of two inner technologies or structures. Itself is a technology. Independent What is mathematics? Information interactions - creating new information / or interactions between set technologies (From & too infinity) What is time? Time is Information - interacting to create a order. A sense of entropy is the ordering of the information interactions - creating new technologies and technologies sets. 💯 logic

Very interesting.

I would marry her watch a beautiful mind!

Super cool talk! It's easy to get lost in the barrage of vocabulary with my limited understanding of particle physics and quantum mechanics, but still an interesting field none the less.

Your opening slide, reading "QuInSoc", reminds me immediately of Orwell's 1984. This is not a positive association.