I've never been surrounded by such a massive amount of Intellect. I bet 1/2 people attending the DEFCON 22 security conference had genius IQs. And everyone was really cool!
I saw plenty of amazing stuff. Sitting in on the "Ask the EFF" was the most inspiring thing at the convention. I've yet to implement as much security and encryption as I should, but at least I started PGP encrypting my personal emails.
This is a video I took of a guy who hacked his badge. He is awesome.