Quote Originally Posted by Darth Paul View Post
Essentially it was played that, like a D&D spellcaster, he had to make somatic gestures to get the effects he wanted, not just think them into happening; probably connected to the fact that the gems were in a gauntlet. If only he had made an Infinity Headband. (But then, instead of shriveling his arm when it was used, the results would have been inflicted on his head, so that might have been a factor to consider.) I have read that it wasn't quite like that in the comic, but I don't know firsthand.

The rule "works" in the context of watching the movie- if every time he does something, he has to make a gesture, immobilizing his hand is a pretty good preventitive measure.
OK, that sounds pretty fair.