Social contagion. That's what lies at the heart of this book; that's what this book is about. How thoughts, feelings, attitudes, beliefs, and actions spread from one person to another to another and so on. Trust is contagious; when one person behaves trustingly, others respond in kind and the dynamic spreads. Suspicion is contagious; when one person acts from suspicion, others respond in kind and the dynamic spreads. Everything is contagious, spreading socially through networks of people.
This book is about a town full of people. Like people everywhere, each person is somewhat good and