ABSTRACT
This book is primarily about the differences between people, and the stories that we tell to explain these differences. That people are different, and different in ways that matter to us, is obvious. But the reasons that people differ from each other are not so obvious, and explanations for these differences vary by culture, by time, and by the individual or group offering the explanation. In the United States, explanations that revolve around genetics and make appeals to our genes have been popular for some time. While explanations appealing to genes have suffered the occasional setback, their popularity has been on the rise in recent years. Over the past decade, there has been an increase both in the number and in the boldness of explanations that attribute the differences between people (both physical and behavioral) to the genetic variations between them.
