also, that brings up another point, in that as pleased with himself as he is at the film's end, he's totally setting himself up for failure, and underneath it all he *doesn't* have empathy for himself. He hasn't let himself process what happened at all - what does he do immediately upon getting back home? He builds a better robot suit. He escapes one cave and exchanges it for his... subterranean workshop. Where he builds another frikking suit. Tony, Tony, Tony. You have nonexistent coping skills, my friend.