Bell's theorem - Wikipedia, the free encyclopedia

Bell's theorem - Wikipedia, the free encyclopedia: "Bell's theorem is a no-go theorem, loosely stating that:

No physical theory of local hidden variables can ever reproduce all of the predictions of quantum mechanics.

It is the most famous legacy of the late physicist John S. Bell. The theorem has important implications for physics itself and philosophy of science as well. Physically, Bell's theorem proves that local hidden variable theories cannot remove the statistical nature of quantum mechanics. Philosophically, Bell's theorem implies that if quantum mechanics is correct, the universe is not locally deterministic."