““As ingenuity gaps widen the gulfs of wealth and power among us, we need imagination, metaphor and empathy more than ever, to help us remember each other’s essential humanity. I believe this will be the central challenge of the coming century—one that will shape everything else about who we are and what we become. Anatol Rapoport, a pioneering mathematical psychologist and one of the wisest people I have ever known, once told me: “The moral development of a civilization is measured by the breadth of its sense of community.” Have we paid enough attention to the moral development of the global civilization we are creating today? A sense of community, of shared humanity, isn’t the only thing we need. If we’re to maintain and improve our civilization in the next century, we also need to close, as best we can, those ingenuity gaps that debilitate people and societies. And here a final metaphor—the metaphor of flight—may point us in the right direction. The idea of flight wound its way through my entire quest to piece together the ingenuity puzzle.””