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Because of quantum mechanics this is a genuinely open philosophical question. The equations which time evolve the wave function are time-symmetric, which means
by nathan_compton 3y ago
Because of quantum mechanics this is a genuinely open philosophical question. The equations which time evolve the wave function are time-symmetric, which means that even if you know the current state of the universe's wave function somehow, you still only get a probabilistic projection for the state in the past. I think this leaves open the genuine physical possibility that the past does not exist in the same way that the present exists. A lot comes down to what you think about the ontology of quantum mechanics.
- hef19898 3y agoWe are not living in a Star Trek / MCU multi-verse so.
- nathan_compton 3y agoThis has nothing to do with fiction. Roughly speaking, if you are some kind of wave function realist, then the implication that the past has a similar kind of uncertainty as the future is a simple consequence of the time reversibility of quantum mechanics (without the measurement postulate). Read a book.
- hef19898 3y agoI do read, history books for example. Using quantum physics to argue some meta-physic view on life is, well, it is I guess... I think it is loughable.
- nathan_compton 3y agoJust telling it like it is.