The Paradox of Time Travel

"This is not the first time it's ever been done, but I did appreciate the sort of we're used to time travel being, well, if you interact with yourself in the past, it screws everything up," he says. "I was totally with the reality shifting thing too of like now there's faulty reality." But then the thing that sort of started to bug me was when a character tries to kill another character and like the gun literally doesn't go off because I'm like, okay, now you're saying basically the universe will step in and stop something from happening. That doesn't like necessarily follow the logic we've had so far!"