No prediction ever been wrong ?

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Discussion Overview

The discussion revolves around the accuracy of quantum mechanics (QM) predictions, particularly in the context of high-speed scenarios approaching the speed of light. Participants explore the implications of quantum theory and the Standard Model (SM) in these extreme conditions, questioning the validity of predictions and the integration of relativity with quantum mechanics.

Discussion Character

  • Debate/contested, Conceptual clarification, Technical explanation

Main Points Raised

  • One participant asserts that no predictions made by quantum theory have ever been wrong, while expressing confusion over claims that the theory yields incorrect results at high speeds.
  • Another participant clarifies that the Standard Model, which is based on quantum mechanics, makes accurate predictions at speeds near light speed, but may encounter issues only at extremely high energies.
  • It is noted that classical mechanics is limited to low speeds, but relativistic quantum mechanics exists to address high-speed scenarios.
  • A participant mentions that the challenge lies in combining quantum mechanics with gravitational theory, indicating that this remains an unresolved topic.
  • One participant questions the source of the claim regarding incorrect predictions at high speeds, suggesting that misunderstandings or unreliable sources may be at play.

Areas of Agreement / Disagreement

Participants express differing views on the accuracy of quantum predictions at high speeds, with some asserting that quantum mechanics and the Standard Model are valid in these contexts, while others raise concerns about specific scenarios or interpretations. The discussion remains unresolved regarding the nature of the claims about incorrect predictions.

Contextual Notes

There are references to the limitations of classical mechanics and the complexities of integrating quantum mechanics with gravitational theories, but specific assumptions or definitions are not fully explored.

lnsanity
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I read that no quantum theory prediction ever been wrong!

But I also read that at high speed (near light speed) the theory give wrong calculation result?

This seem contradictory to me ?

Is this theory only valid at slow speed ?

If someone traveling near speed of light in is ship doing experiment I suppose he will get no wrong prediction ? (right?)

So when is the prediction become wrong at near speed light? Only with outside observer?

Could someone explain ?
 
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Standard Model, which is a theory based on QM, makes some weird predictions about some processes at very high energies.

"Near speed of light" is not enogh - SM is queite accurate there
You need to really reach VERY high energies, 99.9999(dont know how many 9)% of light.

Again, don't blame QM - blame SM.
 
Only classical mechanics is limited to classic speeds. But there is relativistic quantum mechanics which works for high speeds.
http://en.wikipedia.org/wiki/Quantum_mechanics#Relativity_and_quantum_mechanics
So this is not an issue.

However, it's not clear how to combine the theory of gravitation with the concepts of quantum mechanics. But that's quite a tough topic so I don't know details.

EDIT: Oh yeah. I heard at extremely high energies only found in cosmology there are new effects.
 
lnsanity said:
I read that no quantum theory prediction ever been wrong!

But I also read that at high speed (near light speed) the theory give wrong calculation result?

Where exactly did you read this?

Special Relativity has been incorporated into QM. It is why we have a relativistic quantum mechanics.

You either read something wrong, or you misunderstood something you read, or you read some crackpottery. Without giving us an exact source, none of us can tell.

Zz.
 

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