Lists? Stupid human tricks? The evidence is convincing.
David Letterman is hanging up his late-night mic on Wednesday, and it will surely leave a void in the comedy landscape. Letterman inspired countless actors and comedians in his time on TV, inventing hundreds of bits that are still copied to this day.
But here's one other thing that you may not have considered: According to Cracked, David Letterman basically invented YouTube. Think about it: numbered lists, humanizing celebrities with comedy, pet talents?
This guy was WAY ahead of his time.Follow Huffington Post's board LOL on Pinterest.