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Well, maybe in real life, if there really existed superpowers, timetravel could actually break the reality. Since every detail, every little thing we do or don't do has influence in what finally happens.

Maybe if I go to the past to revert some mistake I did, one of the good things that happened thanks to it will no longer exist and if I come back and try fix it, maybe, just maybe, that wouldn't be enough. Maybe it could even be worse.

I think the same, that it is completely reality breaking! And fixing mistakes doesn't mean that the alternative is better, or that fixing a mistake might mean something amazing would never come to pass!

I'm just thinking of all the discoveries that occurred because of some accidental mistake that led to further investigation! If they were fixed, then we might not discover new things!

That's right! Well, The Butterfly Effect doesn't look so crazy when we think about this kind of things.