There’s actually, unless I’ve made a stupid mistake, an even better algorithm that is Truing computable, if very slow:
every time the value of a bit may depend on future events, split the universe and calculate both possibilities. If a branch ever implies a paradox prune that branch and pretend it never happened.
Actually, while this indeed would require a ludicrous amount of branching for an universe where arbitrary chunks of matter can be transported back to any given plank time, all those branches would need to be computed anyway for MWI quantum mechanics. So all you’re really doing is tweaking the MEASURE of each branch.
Hm… sounds right. This also has the fairly disturbing implication that, while people only ever remember consistent time loops, the distribution of mind-moments currently experiencing time loops is not weighted towards consistency, and thus most of them cease to exist as soon as the time travel event fails to happen in a way that would have formed a consistent loop.
There’s actually, unless I’ve made a stupid mistake, an even better algorithm that is Truing computable, if very slow:
every time the value of a bit may depend on future events, split the universe and calculate both possibilities. If a branch ever implies a paradox prune that branch and pretend it never happened.
Actually, while this indeed would require a ludicrous amount of branching for an universe where arbitrary chunks of matter can be transported back to any given plank time, all those branches would need to be computed anyway for MWI quantum mechanics. So all you’re really doing is tweaking the MEASURE of each branch.
Hm… sounds right. This also has the fairly disturbing implication that, while people only ever remember consistent time loops, the distribution of mind-moments currently experiencing time loops is not weighted towards consistency, and thus most of them cease to exist as soon as the time travel event fails to happen in a way that would have formed a consistent loop.
Yea, hehe. Reminds me of Mangled Worlds Quantum Mechanics: http://hanson.gmu.edu/mangledworlds.html
Basically the same thing, but with the born probabilities instead of temporal consistency. And the fact that it may very well be real. O_o