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Is it possible that quantum mechanics is false/wrong?

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Here's the thing that needs to be said up front: if what you mean by the question is a tacit "... and it turns out that particles actually DO have definite positions and momenta just like in classical physics" the answer is "no". Classical physics is never coming back. read more

Quantum mechanics may well be wrong, in the sense that the other answers have already said, but the alternative is not a return to classical physics. The alternative is some other theory that's even less familiar. read more

“Quantum mechanics is very successful; nobody’s claiming that it’s wrong,” said Paul Milewski, a professor of mathematics at the University of Bath in England who has devised computer models of bouncing-droplet dynamics. read more

But according to quantum principles, a measurement of some property–a particle’s momentum, say–can yield a range of possible results with varying probabilities. In the so-called Copenhagen interpretation of quantum mechanics, spearheaded by Niels Bohr of the Institute for Theoretical Physics in Copenhagen, properties such as the momentum of a quantum particle have no definite value until a measurement is made. read more

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