Good point, I'll fix it. Do you know anything about decoherence? --Axel Decoherence isn't an interpretation in and of itself, it simply explains how the different parts of a wave function can disentangle themselves. You still need them to either disappear (Copenhagen) or persist (many-worlds). |
When rolling a die, we use probabilites to describe the outcomes because we don't have enough information even though we believe that the whole process is deterministic.
isn't true if we accept the Copenhagen interpretation. A die roll is a chaotic process, and so is sensitive to initial conditions and tiny disturbances during the roll. Even thermal motion of atoms within it can affect the outcome. A die roll is just as deterministic or nondeterministic as the underlying quantum mechanics.
A better example of deterministic probabilities would be yesterday's lottery results, if I don't yet know the results. The winner has already been chosen, so awarding the prize will be deterministic. But I can still calculate the probability that I'll get the prize, because of my ignorance of the hidden state.