The Harvard economist Sendhil Mullainathan and the Princeton psychologist Eldar Shafir, authors of the book Scarcity, have concluded that we make bad decisions when we are strapped for time, too busy to think, and struggling to manage our obligations. Even if we take only a few hours a week of unplanned time, we can develop a bigger-picture focus or strategies for how our business actually runs.

Everything requires time. It is the one truly universal condition. All work takes place in time and uses up time. Yet most people take for granted this unique, irreplaceable, and necessary resource. Nothing else, perhaps, distinguishes effective executives as much as their tender loving care of time.

This book is about longtermism: the idea that positively influencing the longterm future is a key moral priority of our time. Longtermism is about taking seriously just how big the future could be and how high the stakes are in shaping it. If humanity survives to even a fraction of its potential life span, then, strange as it may seem, we are the ancients: we live at the very beginning of history, in the most distant past. What we do now will affect untold numbers of future people. We need to act wisely.

Everything requires time. It is the one truly universal condition. All work takes place in time and uses up time. Yet most people take for granted this unique, irreplaceable, and necessary resource. Nothing else, perhaps, distinguishes effective executives as much as their tender loving care of time.

We often have two contradictory feelings about the time we have available to us. On one hand we sense a time famine and feel that there’s just not enough time in the day to do everything that we need to do, let alone that we want to do. On the other hand, we tend to think that in some unspecified future we will have a time surplus, as if we’ll get to a place in our lives where the kinds of things capturing our time right now will cease to consume us.