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If I travelled back in time to when I was younger wouldn't that mean my younger self would have already seen my current self as I'd have already visited from the future? (lemmy.ml)

submitted 2 months ago* (last edited 2 months ago) by Ste41th@lemmy.ml to c/asklemmy@lemmy.ml

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So I’d have already seen my self travel back in time and am just repeating what’s already happened. Which would mean I’d have already seen my current self in advance and am now just experiencing the same event from the other way around?

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[–] chaosCruiser@futurology.today 20 points 2 months ago* (last edited 2 months ago)

Yeah, that sounds like you're worried about paradoxes. You might want to check out the Many-Worlds Interpretation to fix that. In the MWI, every decision and event branches into its own timeline. Instead of running into your past self, you would be visiting an alternate you.

If you don't remember being visited by a time traveler, then your timeline didn't have that event. That's ok though, because there are infinitely many timelines. However, you can't visit all of them. You'll only have access to the ones where a future you visited an alternate past you. Instead of changing your own past, you're creating a new timeline where an alternate you got visited by a time traveler.