“Then here is a program: The story of Genesis must be reversed. First, Cain must stop murdering Abel. This is essential if you’re to survive. The Leavers are the endangered species most critical to the world—not because they’re humans but because they alone can show the destroyers of the world that there is no one right way to live. And then, of course, you must spit out the fruit of that forbidden tree. You must absolutely and forever relinquish the idea that you know who should live and who should die on this planet.”