Yes, there is disagreement about what is happening underneath, but whatever your interpretation, it is highly constrained by Bell's theorem. Quantum mechanics h

Yes, there is disagreement about what is happening underneath, but whatever your interpretation, it is highly constrained by Bell's theorem. Quantum mechanics has to be more than just a statistical description of some underlying deterministic process, unless you are willing to throw out locality. I'm highly partial to the Many Worlds Interpretation, as I think it's the only interpretation that takes quantum mechanics seriously. If you assume that quantum mechanics describes both the system you're studying and the measurement apparatus (including the scientist taking the measurements, and the rest of the universe), then you're led inexorably to the Many Worlds Interpretation.