Does information travel faster than light

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SUMMARY

The discussion centers on the concept of information potentially traveling faster than light, specifically referencing claims that signals could travel over 10,000 times the speed of light. This notion contradicts Einstein's theory of relativity, which establishes the speed of light as a universal limit. However, physicists argue that such signals may remain as 'hidden influences' that do not allow for practical faster-than-light communication, thus not violating relativity. The consensus in mainstream science, particularly in Quantum Field Theory (QFT), is to reject faster-than-light communication to maintain the principle of microcausality.

PREREQUISITES
  • Understanding of Einstein's theory of relativity
  • Familiarity with Quantum Field Theory (QFT)
  • Knowledge of microcausality in physics
  • Basic concepts of spacetime and causality
NEXT STEPS
  • Research the implications of microcausality in Quantum Field Theory
  • Study the principles of Einstein's relativity and its limitations
  • Explore the concept of hidden influences in quantum mechanics
  • Investigate current experiments related to faster-than-light signals
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Physicists, students of theoretical physics, and anyone interested in the implications of relativity and quantum mechanics on the nature of information and communication.

wolram
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https://www.sciencedaily.com/releases/2012/10/121028142217.htm

Usable or not this seems to be a spooky statement can this 10000 be falsified?.

Experiments have already shown that if you want to invoke signals to explain things, the signals would have to be traveling faster than light -- more than 10,000 times the speed of light, in fact. To those who know that Einstein's relativity sets the speed of light as a universal speed limit, the idea of signals traveling 10,000 times as fast as light already sets alarm bells ringing. However, physicists have a get out: such signals might stay as 'hidden influences' -- useable for nothing, and thus not violating relativity. Only if the signals can be harnessed for faster-than-light communication do they openly contradict relativity.
 
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Look at https://www.physicsforums.com/threa...-bohmian-mechanics.899967/page-2#post-5664597 from a parallel thread, where the same choice that the article you linked presents in a confusingly hyped mode is spelled out. Mainstream science in the form of QFT has already chosen to discard FTL communication and preserve microcausality, and what is sensationalistically described in the article as "that quantum correlations somehow arise from outside spacetime, in the sense that no story in space and time can describe them" is formalized with this microcausality that has spacelike separated operators commute and therefore being causally independent.
 
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