It also isn’t a practical problem, even for very low number of episodes. For n >= 2, you’d want to look both at #1 before you’ve seen #2, and at #2 before you’v

It also isn’t a practical problem, even for very low number of episodes. For n >= 2, you’d want to look both at #1 before you’ve seen #2, and at #2 before you’ve ever seen #1. As long as we’ve no way to zap memories, that is impossible.