...is the impression that "God plays dice with the universe" an illusion? If all time in the universe is already defined, then, is the apparent randomness a result of the nature of the experiments we can perform? Does a 'sum of histories', and quantum probability... 'square' with the concept that all time and space exists already? If so how? Is there a test or thought experiment that could reveal the answer? If there is no test, then what does it matter, and should we dispose of the notion altogether? OK, that's several question already, but i'm not sure i could have made my query clear otherwise. thanks.