Theoretically, it’s not infinite because of the granularity of time/space, speed of light, and so on.
(Nitpick: Spacetime isn’t quantized AFAIK in standard physics, and then there are still continuous quantum amplitudes.)
This, I think, is what Wei meant when he said we couldn’t just give equal weights to all possible universes—the ones where the coin lands on heads and the ones where it lands on tails. But I think “universes where the coin lands on heads” and “universes where the coin lands on tails” are unnatural categories.
I thought Wei was talking about single worlds (whatever those may be), not sets of worlds. Applied to sets of worlds, this seems correct.
(Nitpick: Spacetime isn’t quantized AFAIK in standard physics, and then there are still continuous quantum amplitudes.)
I thought Wei was talking about single worlds (whatever those may be), not sets of worlds. Applied to sets of worlds, this seems correct.