Talk:Monster Girl Quest: Paradox/@comment-30572467-20170724225127/@comment-26441687-20170727190304

Because they all come from the base timeline so if someone changes there has to be a catalyst for that difference. Also the potential for that difference has to exist, this is common sense. If my personality prevents me from ever doing X no matter what, then I'll just never do it. We're not talking about different people after all, we're talking about the same person just in a different universe. Something just doesn't spontaneously become completely different, there have to exist events, environment, and circumstances that lead to those changes. Tamamo herself is a good example. We see that in the original universe, the 1000 years she spent in that environment changed her demeanor and mellowed her out. There also exists a universe where she did not get those same 1000 years and her personality remains unchanged. But at the same time, it also means that the alternate Tamamo has/had the potential to be identical to Original Tamamo. You also have Lucifina, who was apparently a little unhinged, but once she settled down and got married she changed quite a bit. But without that marriage, she presumably doesn't become the same type of person. These changes aren't just spontaneous things that can happen because of multiple universes, they're all based on very clear catalysts that explain the difference.

Saying you don't want to take into account a different universe that had someone go through a radically different experience that results in them leading a completely different life, that's fine. But just because something like that world might theoretically exist doesn't suddenly mean that everything that happens in any universe, including the ones where no such change in circumstances or catalysts for change happened, is irrelevant.