Okay, before I wrote this, I googled “time travel paradox” and a lot of what I read, I didn’t “grasp” so maybe one of you could enlighten me?
Here’s the way I always understood it:
A person travelling back in time to correct something cannot ever meet himself, since the two can’t exist in the same place at the same time. So if he stays out of sight of his younger self, maybe he’ll succeed.
This guy: http://www.cix.co.uk/~antcom/my1.html contradicts me, it seems. He even has 2 bar graphs and a short story to go with it, with not one, but twoof the same person meeting their younger self.
I’m sure there’s an explanation as to how it was done in Trek so that the two Spocks could talk to each other face to face, but I may not have been paying attention, so that’s why I’m asking y’all.