Time travelers, beware! This page is dedicated to the most mind-boggling, brain-bending paradoxes that will make you question the fabric of space-time.
Imagine a barber who lives in a world where he can travel through time. He goes back in time to a point where he, as a young man, has just started his apprenticeship as a barber. But, he also travels to a point where he, as an old man, has just finished his apprenticeship. Which one does he cut the other's hair?
Learn more about the Barber's dilemmaWhat if a time traveler, in an attempt to prevent a catastrophic event, kills their own grandfather before he has children? Would they still exist, or would they cease to exist because they never existed? Mind blown!
Explore the consequences of killing the pastImagine a time traveler who creates a paradox that creates itself. If they send a message to their past self, which contains the plan for the paradox, but the message itself is created by the future self, then who created the paradox?
Get lost in the infinite loop of procrastinationThese paradoxes are just the tip of the iceberg. There are more where that came from. Visit our More Paradoxes page to explore the depths of procrastination.
Or, if you're feeling adventurous, try our Random Paradox Generator and see what kind of mind-bending conundrums you can create.