“The Leaver lifestyle isn’t about hunting and gathering, it’s about letting the rest of the community live—and agriculturalists can do that as well as hunter-gatherers.” He paused and shook his head. “What I’ve been at pains to give you is a new paradigm of human history. The Leaver life is not an antiquated thing that is ‘back there’ somewhere. Your task is not to reach back but to reach forward.”