Extraordinary human - Boy who sees without eyes

I saw this Clip the other night, its a documentary video about a boy named Ben Underwood, who had taught himself to use echo sound location to navigate his way around. Ben is basically blind, but he managed to do something really incredible. This is actually just the first part clip of the documentary and there are five separate parts if you have time to watch.
I really thought he was amazing. It reminds me of that movie "Daredevil".
I never really thought it was possible, since I only seen it done on movies and cartoon animes...That's a real Wower. How can a blind person play Video games?...that is something.