Suppose that you'd like to make fewer mistakes. How do you go about actually learning from the ones you've already made, rather than repeating them? The first step is to admit to yourself that you've made a mistake. Trivial errors, like accidentally putting the container of orange juice in the freezer, are easy enough to come to terms with. But for more serious matters, or matters that involve pride or shame, our minds often recoils at the pain caused by acknowledging we've screwed up. We make ...