Is wave function a real physical thing?

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The discussion centers on whether the wave function in quantum mechanics is a real physical entity or merely a mathematical tool. While many accept it as a mathematical equation, some researchers argue for its reality, citing the PBR theorem which challenges the notion of wave functions as purely epistemic. However, critics emphasize that the theorem relies on specific assumptions that may not universally apply, and counterexamples exist. Experimental tests have been conducted to explore the ontic versus epistemic nature of the wave function, but limitations remain in establishing definitive conclusions. Overall, the debate continues, highlighting the complexity of interpreting quantum mechanics.
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EDIT: we will leave this closed. Everyone has had a chance to say their piece.
 
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