“Repetition takes time, but it builds behaviors with fewer side effects. If you expose yourself to something over and over, it can “grow on you.” You can get to like things that are good for you, even if you don’t like them instantly. But who wants to repeat something over and over if it doesn’t feel good? Usually, people don’t, which is why we tend to rely on the circuits built by accidents of experience. You will be shaped by accident unless you start repeating things by choice.”