The Grandfather Clause is a paradox that defies the fabric of space-time. According to legend, it states that "what happens today, will happen again exactly 37.5 years from now, minus or plus 3.14 years, depending on whether you're wearing socks or not."
We're not sure who came up with this mind-bending concept, but we suspect it was a time-traveling accountant from ancient Greece.
Want to learn more about other paradoxes? Check out the Godel Lemma for an explanation of how to prove your favorite theorem in under 5 minutes!
The Tellet Brother takes you on a journey through the infinite loop of the same joke told 100 times.