Theory of Relativity

Theory of Relativity: for those who do not understand why time goes slower at great speed.

Answer: It’s because you keep changing time zones. See, if you fly to California, you gain three hours on a five-hour flight, right? So if you go at the speed of light, you gain more time, because it doesn’t take as long to get there.

Disclaimer: of course, thus the theory of relativity only works if you’re going west.