In many ways this book is the most quintessentially “me” project I’ve done. My work lands me squarely at the intersection of geopolitics and demography. Geopolitics is the study of place, exploring how everything about us is an outcome of where we are. Demography is the study of population structures. Teens act different from thirty-somethings versus fifty-somethings versus seventy-somethings. I weave together these two disparate themes to forecast the future.