But if you were scared of being wrong, then assigning probability literally zero means you can’t change your mind, ever, even if Professor McGonagall shows up with a Time-Turner tomorrow.
I dunno man. If you give up the idea of a causal universe then on the face of things you are also giving up:
The arrow of time. Not only do eggs unscramble themselves, but they do so at the same rate that eggs get scrambled.
Free will in the compatibilist sense. All the diagrams you drew here have become meaningless. There’s no point in asking whether to change your mind if McGonagall shows up with a Time-Turner, because your mind is just going to be changed or not changed according to whatever makes the universe be consistent, and “you” are just a constraint to be worked around, no longer causally efficacious.
Really if McGonagall shows up with something she claims is a Time-Turner, the right thing to do would be to stress-test that assertion by travelling back in time and then doing the opposite of what you observed yourself to do. In the story you shut this down by saying that “time paradoxes” are known to result in disasters, but that’s a very suspicious claim; it’s not clear why a random “logical universe” would have that property.
Basically, although I agree non-causal logical universes can exist, I’m not sure if minds can live in them.
I dunno man. If you give up the idea of a causal universe then on the face of things you are also giving up:
The arrow of time. Not only do eggs unscramble themselves, but they do so at the same rate that eggs get scrambled.
Free will in the compatibilist sense. All the diagrams you drew here have become meaningless. There’s no point in asking whether to change your mind if McGonagall shows up with a Time-Turner, because your mind is just going to be changed or not changed according to whatever makes the universe be consistent, and “you” are just a constraint to be worked around, no longer causally efficacious.
Really if McGonagall shows up with something she claims is a Time-Turner, the right thing to do would be to stress-test that assertion by travelling back in time and then doing the opposite of what you observed yourself to do. In the story you shut this down by saying that “time paradoxes” are known to result in disasters, but that’s a very suspicious claim; it’s not clear why a random “logical universe” would have that property.
Basically, although I agree non-causal logical universes can exist, I’m not sure if minds can live in them.