“An entire field of study — and significant portions of certain scientists’ careers — could be resting on a false premise. If something this well-established could fall apart, then what’s next? That’s not just worrying. It’s terrifying.” In Slate, Daniel Engber explains how the theory of ego depletion (the idea that we have a limited supply of willpower that decreases as we use it) could have just been totally debunked: Everything Is Crumbling. (Related: I had an ice cream sandwich for breakfast.)