Paradox 1: The Grandfather Paradox

The Grandfather Paradox is a classic time travel conundrum that raises questions about free will and the fabric of time. If you go back in time and kill your own grandfather before he has children, then were you ever born? Or did you never exist in the first place?

Or maybe you're just a figment of your own imagination, created by a time-traveling AI with a penchant for 80s rock music.

Read the theory behind the paradox