quantum mechanics: Kastner\'s brilliant blog (Introduction)

by rekastner , Friday, July 19, 2013, 22:54 (3935 days ago) @ David Turell

I'll just note again that being realist about QM is most certainly not a license for people to believe whatever they wish about reality. We are tightly constrained by the theory, whose predictions are very well corroborated.-Here's an example: some researchers wanted to believe that quantum states describe our knowledge but not the full reality of quantum objects, if that full reality can be characterized by physically real but unknown properties (and other apparently natural assumptions about the relationship of those hidden properties to the quantum state). A new theorem by Pusey, Barrett and Rudolph (PBR) proves that QM is in conflict with that belief. So it has to be discarded.