Without an IQ of 120, very few people end up producing anything that will be groundbreaking and remembered in the history books. But the twist is that as long as you’re past the 120 mark, many studies show more IQ points have little effect. What makes the difference? Not luck. It’s all those hours. A Manhattan Project physicist IQ of 180 might be nice, but those 60 points don’t make the difference that more hours will.
