these big wings on, and this guy is running, running, running. >> the man is actually able to flap his arms and liftoff and actually fly. >> this is crazy. this is everything i wanted to do in my life. >> he's coming in for the landing. >> whoo! and there's much celebration. but is it real? or is it fake? >> i don't know, but the mechanics of it seem sort of funky. >> you would probably flap your arm for five times and the air friction would be so much you would just pass out. >> the human bird wing is not a fake. i think you can glide jumping in the wind. probably was fun to do. probably would be scary to do. >> this is what sells me, the fact that he is so emotional, like, he did it, he really did it. he flew like a bird. >> oh, it can -- intensify.