WHAT YOU’VE ALL (or not 🙁 ) BEEN WAITING FFFOOORRR………
So paradoxes are when someone goes back into time to the past to change something that already happened, like stopping the assassination of JFK, it causes a rift in the space time continuum, which is bad, because if you stopped his assassination, the LBJ would have never come to office, which would cause everything caused by him to either disappear or explode extremely violently. Then, you wouldn’t have had to stop his assassination, which would cause him to be assassinated, and so on, like a never-ending loop.
Moral? Don’t do it!