The author Michael Lewis writes in The Undoing Project, his best-selling biography of Nobel prize winner Daniel Kahneman and Amos Tversky, that “knowledge is prediction”. When we assert that something is true, Michael Lewis argues, we are drawing on the evidence we’ve stored in our brains to anticipate the reality of a fact, event, or situation. We combine that evidence to predict (with varying degrees of certainty) that a particular phenomenon can or cannot be. To know something is to ...