A Space & astronomy forum. SpaceBanter.com

Go Back   Home » SpaceBanter.com forum » Astronomy and Astrophysics » Astronomy Misc
Site Map Home Authors List Search Today's Posts Mark Forums Read Web Partners

Theoretical Physics : Humbug or Doublethink?



 
 
Thread Tools Display Modes
  #1  
Old May 11th 16, 02:18 PM posted to sci.astro
Pentcho Valev
external usenet poster
 
Posts: 8,078
Default Theoretical Physics : Humbug or Doublethink?

https://www.project-syndicate.org/co...mowicz-2016-05
Marek Abramowicz, Professor of Theoretical Physics at Göteborg University, Sweden: "No quantum-gravity theory has been found so far, despite laborious efforts. Several provisional quantum-gravity models of particular phenomena involving black holes have been proposed; but, because none has been tested experimentally, no one knows whether these models are correct (indeed, some lead to acute paradoxes). Many physicists are convinced that these problems indicate a missing ingredient in our understanding of the fundamental principles of nature. In desperation, often mixed with arrogance, some are suggesting completely crazy quantum-gravity concepts, including bizarre alternatives for standard Einsteinian black holes – with no experimental foundation. As a result, for many physicists today, the genuinely fundamental problem of reconciling the two theories has degenerated into pompous, meaningless humbug."

Perhaps "humbug" is not the right term - it would be more suitable if physicists did not know why Einstein's relativity and quantum mechanics are incompatible. Actually they do know but extract career and money from both sides of the contradiction. So "doublethink" seems to be a better term:

https://www.perimeterinstitute.ca/re...essons-quantum
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?"

http://www.sciencemag.org/content/ea...cience.aac6498
"In Einstein's general theory of relativity, time depends locally on gravity; in standard quantum theory, time is global - all clocks "tick" uniformly."

http://arxiv.org/pdf/gr-qc/0610057.pdf
"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."

http://www.hindawi.com/journals/isrn/2013/509316/
"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.."

http://ebooks.adelaide.edu.au/o/orwe...hapter2.9.html
"Doublethink means the power of holding two contradictory beliefs in one's mind simultaneously, and accepting both of them. The Party intellectual knows in which direction his memories must be altered; he therefore knows that he is playing tricks with reality; but by the exercise of doublethink he also satisfies himself that reality is not violated. The process has to be conscious, or it would not be carried out with sufficient precision, but it also has to be unconscious, or it would bring with it a feeling of falsity and hence of guilt. Doublethink lies at the very heart of Ingsoc, since the essential act of the Party is to use conscious deception while retaining the firmness of purpose that goes with complete honesty. To tell deliberate lies while genuinely believing in them, to forget any fact that has become inconvenient, and then, when it becomes necessary again, to draw it back from oblivion for just so long as it is needed, to deny the existence of objective reality and all the while to take account of the reality which one denies - all this is indispensably necessary."

Pentcho Valev
  #2  
Old May 13th 16, 08:10 AM posted to sci.astro
Pentcho Valev
external usenet poster
 
Posts: 8,078
Default Theoretical Physics : Humbug or Doublethink?

Breathtaking doublethink in Einstein schizophrenic world:

Lee Smolin rejects Einstein's relative time, the absurd consequence of Einstein's 1905 false constant-speed-of-light postulate:

http://www.guardian.co.uk/books/2013...reality-review
"And by making the clock's tick relative - what happens simultaneously for one observer might seem sequential to another - Einstein's theory of special relativity not only destroyed any notion of absolute time but made time equivalent to a dimension in space: the future is already out there waiting for us; we just can't see it until we get there. This view is a logical and metaphysical dead end, says Smolin."

http://www.bookdepository.com/Time-R.../9780547511726
"Was Einstein wrong? At least in his understanding of time, Smolin argues, the great theorist of relativity was dead wrong. What is worse, by firmly enshrining his error in scientific orthodoxy, Einstein trapped his successors in insoluble dilemmas..."

Exactly the same Lee Smolin worships Einstein's 1905 false constant-speed-of-light postulate and its consequences:

http://www.independent.com/news/2013...7/time-reborn/
QUESTION: Setting aside any other debates about relativity theory for the moment, why would the speed of light be absolute? No other speeds are absolute, that is, all other speeds do indeed change in relation to the speed of the observer, so it's always seemed a rather strange notion to me.
LEE SMOLIN: Special relativity works extremely well and the postulate of the invariance or universality of the speed of light is extremely well-tested.. It might be wrong in the end but it is an extremely good approximation to reality.
QUESTION: So let me pick a bit more on Einstein and ask you this: You write (p. 56) that Einstein showed that simultaneity is relative. But the conclusion of the relativity of simultaneity flows necessarily from Einstein's postulates (that the speed of light is absolute and that the laws of nature are relative). So he didn't really show that simultaneity was relative - he assumed it. What do I have wrong here?
LEE SMOLIN: The relativity of simultaneity is a consequence of the two postulates that Einstein proposed and so it is deduced from the postulates. The postulates and their consequences are then checked experimentally and, so far, they hold remarkably well.

http://farm5.staticflickr.com/4010/4...22552b04_z.jpg

Pentcho Valev
 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Who Killed Theoretical Physics? Pentcho Valev Astronomy Misc 1 January 28th 16 07:01 PM
THEORETICAL PHYSICS UNRAVELLING Pentcho Valev Astronomy Misc 1 December 22nd 14 03:16 PM
PHYSICS EDUCATION BASED ON DOUBLETHINK Pentcho Valev Astronomy Misc 2 January 11th 12 08:17 AM
WHAT SHOULD CHANGE IN THEORETICAL PHYSICS Pentcho Valev Astronomy Misc 1 September 8th 08 03:58 PM


All times are GMT +1. The time now is 01:22 AM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 SpaceBanter.com.
The comments are property of their posters.