We will die, that much is certain; and everyone we have ever loved and cared about will die, too, sometimes—heartbreakingly—before us. Being someone else, traveling the world, making new friends gives us a temporary reprieve from this knowledge, which is spared most of the animal kingdom. Busyness—or the simulated busyness of email addiction—numbs the pain of this awareness, but it can never totally submerge it. Given that our days are limited, our hours precious, we have to decide what we want to do, what we want to say, what and who we care about, and how we want to allocate our time to these things within the limits that do not and cannot change. In short, we need to slow down.