Scientists from University of Texas Medical Branch at Galveston had a hunch that students with a regular videogame diet (high school sophomores who played two hours of games a day and college students who played four) would be primed for virtual surgery tools. They were right. When performance with those tools was measured, the game-playing students did better than a group of residents at UTMB. It was only slightly better, but still. Kinda makes you wonder: Who do you really want poking you with needles, a prim Harvard-educated resident or a slovenly high school kid who spends Friday nights playing Call of Duty?