Okay, I understand now; I was thinking about the problem of reversing the past. Your arguments make sense if you just want to resurrect folk; it’s possible (as you seem to think?) that there’s no particularly good reason to reverse the past as long you have tons of computing power and all the information about the past that you’d need in practice. It’s definitely true that the latter strategy is applicable in more possible universes.
Okay, I understand now; I was thinking about the problem of reversing the past. Your arguments make sense if you just want to resurrect folk; it’s possible (as you seem to think?) that there’s no particularly good reason to reverse the past as long you have tons of computing power and all the information about the past that you’d need in practice. It’s definitely true that the latter strategy is applicable in more possible universes.