WATCH: Stephen Hawking Threw A Party, To Try And Solve Time Travel

We all know Stephen Hawking was smart. Much, much smarter than you or I. But here's an example of how much of a different level that dude was thinking on. Hawking once threw a party, to try and determine whether or not time travel was real. 

The thinking being, if you don't invite anyone until after the party happened, then only time travellers could attend...if time travel is in fact real. More HERE: