Shortly after his 23rd birthday, Kevin was diagnosed with Crohn’s disease. For a while he was extremely reluctant to talk about it (except among family and close friends), a reluctance he rationalized by telling himself that he’s simply a “private person” who doesn’t like sharing private medical details with the world. Later he started following a very strict diet to treat his disease—a diet that eliminated processed foods and refined carbohydrates. Eating so healthy quickly became a point of pride, and suddenly Kevin found himself perfectly happy to share his diagnosis, since it also gave him an opportunity to brag about his diet. Being a “private person” about medical details went right out of the window—and now, look, here he is sharing his diagnosis (and diet!) with perfect strangers in this book.

Kevin Simler & Robin Hanson, The Elephant in the Brain: Hidden Motives in Everyday Life, Oxford, 2018, p. 104