B Can quantum mechanics be derived from deeper principles?

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Can quantum mechanics be derived from deeper principles?

For example, special relativity results directly from the fact that the speed of light is the same for all reference frames. Conservation laws of momentum and energy come from certain symmetries of space and time.

Does quantum mechanics result from some symmetry or from some deeper law of nature? Can Schrodinger's Equation be derived theoretically from a deeper principle?
 
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Short answer: nobody knows.
 
Simon Bridge said:
Short answer: nobody knows.

Which is really all that can be said in a PF discussion of this topic. Thread closed.
 

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Is it possible, and fruitful, to use certain conceptual and technical tools from effective field theory (coarse-graining/integrating-out, power-counting, matching, RG) to think about the relationship between the fundamental (quantum) and the emergent (classical), both to account for the quasi-autonomy of the classical level and to quantify residual quantum corrections? By “emergent,” I mean the following: after integrating out fast/irrelevant quantum degrees of freedom (high-energy modes...
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