it's not well explained, but i think it's about whether or not physical theories with "hidden variables" are possible. the idea is that maybe the uncertainty o

it's not well explained, but i think it's about whether or not physical theories with "hidden variables" are possible. the idea is that maybe the uncertainty of quantum mechanics is a result of us simply not understanding things right, and there's actually some deeper "reality" (a better theory that we don't have yet) without the uncertainty. http://en.wikipedia.org/wiki/Hidden_variable_theory http://en.wikipedia.org/wiki/Hidden_variable_theory i thought this was already disproved (or it may be that hidden variable theories can only work if physics is non-local? which is something people don't like), but it's been years since i understood / tried to understand this, and it's horribly subtle, so i guess there's more detail than i ever knew...