Brothers Einsteinians Rebuke Leonard Susskind
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Pentcho Valev
2017-08-12 07:35:00 UTC
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Countless Einsteinians have been extracting, for decades, money and career from a red herring called "Incompatibility of general relativity and quantum mechanics", and now Leonard Susskind is going to wreck the whole thing. Unforgivable.

The fundamental contradiction in Einstein's schizophrenic world is between Einstein's idiotic relative time (spacetime) and Newton's absolute time (equivalent to the contradiction between 2+2=5 and 2+2=4 in Big Brother's world) - all problems come from this fundamental contradiction:

"The effort to unify quantum mechanics and general relativity means reconciling totally different notions of time. In quantum mechanics, time is universal and absolute; its steady ticks dictate the evolving entanglements between particles. But in general relativity (Albert Einstein's theory of gravity), time is relative and dynamical, a dimension that's inextricably interwoven with directions X, Y and Z into a four-dimensional "space-time" fabric."

"In quantum theory, a "master clock" ticks away somewhere in the universe, measuring out all processes. But in Einstein's relativity, time is distorted by motion and gravity, so clocks don't necessarily agree on how it is passing - meaning any master clock must, somewhat implausibly, be outside the universe."

Perimeter Institute: "Quantum mechanics has one thing, time, which is absolute. But general relativity tells us that space and time are both dynamical so there is a big contradiction there. So the question is, can quantum gravity be formulated in a context where quantum mechanics still has absolute time?"

"In Einstein's general theory of relativity, time depends locally on gravity; in standard quantum theory, time is global – all clocks "tick" uniformly."

"One one hand, time in quantum mechanics is a Newtonian time, i.e., an absolute time. In fact, the two main methods of quantization, namely, canonical quantization method due to Dirac and Feynman's path integral method are based on classical constraints which become operators annihilating the physical states, and on the sum over all possible classical trajectories, respectively. Therefore, both quantization methods rely on the Newton global and absolute time. [...] The transition to (special) relativistic quantum field theories can be realized by replacing the unique absolute Newtonian time by a set of timelike parameters associated to the naturally distinguished family of relativistic inertial frames."

"In quantum mechanics, time is absolute. The parameter occurring in the Schrödinger equation has been directly inherited from Newtonian mechanics and is not turned into an operator. In quantum field theory, time by itself is no longer absolute, but the four-dimensional spacetime is; it constitutes the fixed background structure on which the dynamical fields act. GR is of a very different nature. According to the Einstein equations (2), spacetime is dynamical, acting in a complicated manner with energy momentum of matter and with itself. The concepts of time (spacetime) in quantum theory and GR are thus drastically different and cannot both be fundamentally true."

The above revelations are rare exceptions buried in the Augean stables of pseudo-problems that Einsteinians heroically solve in making their living. Looks like dolce vita but suddenly Susskind comes and informs the world that there is no incompatibility at all:

Leonard Susskind: "GR=QM? Well why not? Some of us already accept ER=EPR [1], so why not follow it to its logical conclusion? It is said that general relativity and quantum mechanics are separate subjects that don't fit together comfortably. There is a tension, even a contradiction between them - or so one often hears. I take exception to this view. I think that exactly the opposite is true. It may be too strong to say that gravity and quantum mechanics are exactly the same thing, but those of us who are paying attention, may already sense that the two are inseparable, and that neither makes sense without the other." https://arxiv.org/pdf/1708.03040.pdf

The tragedy is enormous. Lubos Motl lost his teacher:

Lubos Motl: "I have always appreciated that in comparison to other top physicists, Leonard Susskind was among those who deserved to be called heuristic thinkers, creative mavericks, talkers rather than calculators, and to a large extent, I have found this spirit inspiring. Susskind was always a role model for me. The number and diversity of ideas he helped to emerge from the darkness was amazing. [...] He says that not only general relativity and quantum mechanics don't have any tension. (They do. In the spacetime, they may be considered separately and theories that respect both class of principles are really hugely constrained – to the extent that they must be string theory.) They are not only compatible, Susskind's gospel continues. They are inseparable, they are the same thing." http://motls.blogspot.bg/2017/08/grqm-paper-shows-susskind-isnt-real-co.html

Which is the most fundamental (idiotic) idea that Susskind "helped to emerge from the darkness"? Needless to say, this is Einstein's idea that the constancy of the speed of light is a consequence of the principle of relativity:

Leonard Susskind (10:26) : "The principle of relativity is that the laws of physics are the same in every reference frame. That principle existed before Einstein. Einstein added one law of physics - the law of physics is that the speed of light is the speed of light, c. If you combine the two things together - that the laws of physics are the same in every reference frame, and that it's a law of physics that light moves with certain velocity, you come to the conclusion that light must move with the same velocity in every reference frame. Why? Because the principle of relativity says that the laws of physics are the same in every reference frame, and Einstein announced that it is a law of physics that light moves with a certain velocity."

Lubos Motl: "The second postulate of special relativity morally follows from the first one once you promote the value of the speed of light to a law of physics which is what Einstein did. In classical Newtonian mechanics, it was not a law of physics." http://motls.blogspot.com/2006/12/lorentz-violation-and-deformed-special.html

Pentcho Valev
Pentcho Valev
2017-08-12 18:57:33 UTC
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Susskind and Motl are not the only Einsteinians who teach that Einstein's 1905 second postulate is a consequence of the first - the breathtaking logic is taught by other Einsteinians as well:

Professor Raymond Flood (5:05): "A consequence of Einstein's principle of relativity is that the speed of light in a vacuum has the same value in two uniformly moving frames of reference."

Dave Slaven: "Einstein's first postulate seems perfectly reasonable. And his second postulate follows very reasonably from his first. How strange that the consequences will seem so unreasonable."

Chad Orzel: "The core idea of Einstein's theory of relativity can fit on a bumper sticker: The Laws Of Physics Do Not Depend On How You're Moving. Absolutely everything else follows from the simple realization that physics must appear exactly the same to person in motion as to a person at rest - the constant speed of light, the slowing of time for moving observers, E=mc2, black holes, even the expanding universe (I've written a whole book about this, explained through imaginary conversations with my dog)."

Michael Fowler: "Therefore, demanding that the laws of physics are the same in all inertial frames implies that the speed of any light wave, measured in any inertial frame, must be 186,300 miles per second. This then is the entire content of the Theory of Special Relativity: the Laws of Physics are the same in any inertial frame, and, in particular, any measurement of the speed of light in any inertial frame will always give 186,300 miles per second."

Vesselin Petkov: "One of the fundamental facts of modern physics is the constancy of the speed of light. Einstein regarded it as one of the two postulates on which special relativity is based. So far, however, little attention has been paid to the status of this postulate when teaching special relativity. It turns out that the constancy of the speed of light is a direct consequence of the relativity principle, not an independent postulate. To see this let us consider the two postulates of special relativity as formulated by Einstein in his 1905 paper "On the electrodynamics of moving bodies": "the same laws of electrodynamics and optics will be valid for all frames of reference for which the equations of mechanics hold good. We will raise this conjecture (the purport of which will hereafter be called the "Principle of Relativity") to the status of a postulate, and also introduce another postulate, which is only apparently irreconcilable with the former, namely, that light is always propagated in empty space with a definite velocity c which is independent of the state of the motion of the emitting body". As the principle of relativity states that "the laws of physics are the same in all inertial reference frames" and the constancy of the speed of light means that "the speed of light is the same in all inertial reference frames (regardless of the motion of the source or the observer)" it follow that the second postulate is indeed a consequence of the first - the law describing the propagation of light is the same for all inertial observers."

Who devised the breathtaking logic? Divine Albert of course (brothers Einsteinians would not teach it otherwise):

Albert Einstein: Relativity: The Special and General Theory. 1920. VII. The Apparent Incompatibility of the Law of Propagation of Light with the Principle of Relativity

Einstein's second (constant-speed-of-light) postulate, in its implication that the speed of light is independent of the speed of the observer (the same for all observers), was (and still is) obviously idiotic:

John Stachel: "But this seems to be nonsense. How can it happen that the speed of light relative to an observer cannot be increased or decreased if that observer moves towards or away from a light beam? Einstein states that he wrestled with this problem over a lengthy period of time, to the point of despair." http://www.aip.org/history/exhibits/einstein/essay-einstein-relativity.htm

So Einstein had to devise some mythology justifying the introduction of the idiocy. Here is the mythology:

1. The idiocy was a tenet of Maxwell's 19th century electromagnetic theory.

2. The idiocy was confirmed by the Michelson-Morley experiment.

Brothers Einsteinians know that teaching Einstein's mythology is vitally important:

Leonard Susskind: "One of the predictions of Maxwell's equations is that the velocity of electromagnetic waves, or light, is always measured to have the same value, regardless of the frame in which it is measured. [...] So, in Galilean relativity, we have c'=c-v and the speed of light in the moving frame should be slower than in the stationary frame, directly contradicting Maxwell. Scientists before Einstein thought that Galilean relativity was correct and so supposed that there had to exist a special, universal frame (called the aether) in which Maxwell's equations would be correct. However, over time and many experiments (including Michelson-Morley) it was shown that the speed of light did not depend on the velocity of the observer measuring it, so that c'=c." http://www.lecture-notes.co.uk/susskind/special-relativity/lecture-1/principles-of-special-relativity/

Brian Cox, Jeff Forshaw, Why Does E=mc2?: (And Why Should We Care?), p. 91: "...Maxwell's brilliant synthesis of the experimental results of Faraday and others strongly suggested that the speed of light should be the same for all observers. This conclusion was supported by the experimental result of Michelson and Morley, and taken at face value by Einstein."

Brian Greene, The Elegant Universe, p. 19: "If she fires the laser toward you - and if you had the appropriate measuring equipment - you would find that the speed of approach of the photons in the beam is 670 million miles per hour. But what if you run away, as you did when faced with the prospect of playing catch with a hand grenade? What speed will you now measure for the approaching photons? To make things more compelling, imagine that you can hitch a ride on the starship Enterprise and zip away from your friend at, say, 100 million miles per hour. Following the reasoning based on the traditional Newtonian worldview, since you are now speeding away, you would expect to measure a slower speed for the oncoming photons. Specifically, you would expect to find them approaching you at (670 million miles per hour - 100 million miles per hour =) 570 million miles per hour. Mounting evidence from a variety of experiments dating back as far as the 1880s, as well as careful analysis and interpretation of Maxwell's electromagnetic theory of light, slowly convinced the scientific community that, in fact, this is not what you will see. Even though you are retreating, you will still measure the speed of the approaching photons as 670 million miles per hour, not a bit less. Although at first it sounds completely ridiculous, unlike what happens if one runs from an oncoming baseball, grenade, or avalanche, the speed of approaching photons is always 670 million miles per hour. The same is true if you run toward oncoming photons or chase after them - their speed of approach or recession is completely unchanged; they still appear to travel at 670 million miles per hour. Regardless of relative motion between the source of photons and the observer, the speed of light is always the same." http://cfile205.uf.daum.net/attach/141EBD484EE5A30219CDD4

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Pentcho Valev
Pentcho Valev
2017-08-13 14:57:24 UTC
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Peter Woit: "The "post-modern" remark is less about these conjectures being "radical" than them being incomprehensible. I quite seriously have no idea whether Susskind has a new important idea that I'm not understanding because I'm not familiar with all the background and assumptions of those that he's writing for, or whether he has just stopped making sense." http://www.math.columbia.edu/~woit/wordpress/?p=9474

Leonard Susskind has never made any sense, Peter Woit. Einsteinians don't make sense. Consider, for instance, the following two quotations - do they make a lot of sense to you?

Thibault Damour: "The paradigm of the special relativistic upheaval of the usual concept of time is the twin paradox. Let us emphasize that this striking example of time dilation proves that time travel (towards the future) is possible. As a gedanken experiment (if we neglect practicalities such as the technology needed for reaching velocities comparable to the velocity of light, the cost of the fuel and the capacity of the traveller to sustain high accelerations), it shows that a sentient being can jump, "within a minute" (of his experienced time) arbitrarily far in the future, say sixty million years ahead, and see, and be part of, what (will) happen then on Earth. This is a clear way of realizing that the future "already exists" (as we can experience it "in a minute")." http://www.bourbaphy.fr/damourtemps.pdf

David Morin, Introduction to Classical Mechanics With Problems and Solutions, Chapter 11, p. 14: "Twin A stays on the earth, while twin B flies quickly to a distant star and back. [...] For the entire outward and return parts of the trip, B does observe A's clock running slow, but enough strangeness occurs during the turning-around period to make A end up older. Note, however, that a discussion of acceleration is not required to quantitatively understand the paradox..." http://www.people.fas.harvard.edu/~djmorin/chap11.pdf

Pentcho Valev