Quote by lugita15
Demystifier, let's call the conclusion of the KochenSpecker theorem "fakeness". If you have a set of noncommuting observables, does KochenSpecker state that all of them are fake, or just that just at least one of them must be fake? The reason I'm asking is that position and momentum are noncommuting.

KC theorem says that, if you have a set of noncommuting observables, then at most one of them can be genuine (i.e., not fake).
Quote by lugita15
On an unrelated note, doesn't Bohmian mechanics suffer from its own finetuning problems, namely that the universe got into just the right state that comports with the Born rule? I think this is a somewhat odd issue for BM, because decoherence can easily explain why the Born rule seems correct in practice. Why can't this explanation be carried over into BM, which anyway utilizes decoherence in its reduction of quantum uncertainty to classical uncertainty?

First, I don't see how decoherence explain the Born rule, and I would be very happy if you could explain it to me or give a reference where it is explained.
Second, BM can explain the Born rule for positions, without postulating it and without using decoherence. See e.g.
http://xxx.lanl.gov/abs/quantph/0403034
and Ref. [16] therein.
Third, BM can explain the Born rule for other observables by combining the Born rule for positions with the theory of decoherence.