Originally Posted by brentbacardi

Um think about this, back then, no computers, no video games, no cars, no nothing! How do you think they spent their free time? They were probably pretty bored much of the time...

Now think of the science that goes into a paper airplane... its actually pretty simple to learn about basic aero dynamics just from a sheet of paper...

So you are telling me, no caveman or anyone saw a big fucking leaf fall in the jungle and go "Wow it dont drop like rock ughabugga, me try make one better, or one i can use for fun, ughabugga" . So they probably fucking did since they had nothing fun to do after having a long day of finding food and shit. Plus they see birds and want to fly, its not hard to put 2 and 2 together. But you would never find any remains of them throwing leaf planes around the jungle but when you see a cave drawing or some shit about flying you dismiss it as aliens or impossible or whatever.