There is windsurfing, and then there is whatever went down in this edit from Red Bull. In their typical over-caffeinated, "gives you wings" style, this edit contains some serious madness. If you thought John John performed wild aerial feats, just watch this lot go completely inverted in some serious chop.
For me this shatters my preconceived notion of "normal" windsurfing, which is what I witnessed when I was eleven on vacation in the Florida Keys. It more consisted of overweight tourists floundering in a modest ocean breeze, I have to say this is much better.