The story we’re telling is simple: as humans have globalized, family values have not scaled well. Not so many lifetimes ago, we lived in kin tribes comprised of our aunts, uncles, cousins, and other relatives. Because of the genetic relatedness of our fellow kin, our interests were aligned according to the principles of inclusive fitness. Today, we no longer in live in kin tribes. The roles once played by our extended kin are often played by strangers. Heroes we admired used to be our uncles and aunts. Now, we admire celebrities who maximize profit by encouraging us to buy their endorsed products. Such transactional dynamics have transformed virtually every type of human relationship, right down to the Tinder culture. The time has come to rewrite our social contract for the modern era. We are writing this book to help audiences around the world imagine entirely new types of social, political, and economic institutions based on inclusive stakeholding, congruent goals, and a vested interest in the success of others—attributes that were inherent in the inclusive fitness of our prehistoric social systems. The time has come for Interdependent Capitalism.