"In assuming that there are discrete laws of physics, we also assume there is a subset of all 'possible' events; events that 'can happen'. (Given a certain arrangement of the universe at T1, there is a set of possible arrangements of the universe at T2)."
False. Possibilities can be mutually exclusive, so if one occurs, the other can't. Yet, after the fact, we considered them both to be events that could have happened.
(Unless you subscribe to absolute determinism, but I don't believe that's clear to be the case. Also, IME, discussions of determinism mechanisms in, e.g. quantum mechanics, tend to talk more about whether that's where Diety lives.)
False. Possibilities can be mutually exclusive, so if one occurs, the other can't. Yet, after the fact, we considered them both to be events that could have happened.
(Unless you subscribe to absolute determinism, but I don't believe that's clear to be the case. Also, IME, discussions of determinism mechanisms in, e.g. quantum mechanics, tend to talk more about whether that's where Diety lives.)