It's not tested at all This is what Wikipedia says about hidden variables: https://en.wikipedia.org/wiki/Quantum_mechanics https://en.wikipedia.org/wiki/Quant

It's not tested at all This is what Wikipedia says about hidden variables: https://en.wikipedia.org/wiki/Quantum_mechanics https://en.wikipedia.org/wiki/Quantum_mechanics Many Bell tests have been performed and they have shown results incompatible with the constraints imposed by local hidden variables.