Re: Why is Randomness so Hard to Prove?
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QM is not inconsistent with determinism and could never be used to disprove determinism. To see why this is true, imagine a deterministic simulation of a QM universe
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How do you propose to recreate the predictions of quantum mechanics deterministically?
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All that's needed is to show that our universe could be running as a simulation on a deterministic computer. (I'm obviously not claiming that's what is going on)
Computationally QM is like late evaluation, you never calculate a value until its needed.
Consider the up/down spin of two entangled particles (pretty much the classic QM experiment). This is consistent with a computer simulation that doesn't calculate the up/down values until they are needed for something. When one of the particles is force by measurement to have an up/down value the 'program' pseduo-randomly allocates the values up/down to the particles. This happens at the speed of the computer which is many orders of magnitude greater than the max speed within the simulation.
That's a bit of a hurried explanation but ask more if its not clear (or shoot it down in flames)
chez
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