There’s a pattern I see repeatedly in people who have just retired. Eager to fill up the time they used to spend earning a living, they fill their days with activities. The activities may be largely recreational or social in nature, or they may include serving on boards, volunteering at food banks, working on political campaigns, or any number of other rewarding, fulfilling tasks. For people who have been running at top speed all their professional lives, this seems like a smart thing to do. The idea of limitless, unstructured time can leave people accustomed to packed schedules and productive activity feeling strangely unmoored. But many people whose working lives