Show of hands: who here has ever approached a major life event—and I mean major, like starting in a new school or a new job or getting married or welcoming a baby into your household or retiring from work, you know, major—and because you did all the things to prepare for the big event and because you studied and learned what to do ahead of time, that everything went absolutely perfectly, no surprises, no regrets? Anyone? Is it even possible to ever be completely prepared?