What is autism? A devastating developmental disorder, a lifelong disability? Or perhaps a completely normal cognitive trait, related to forms of genius? In truth, autism is all of this and more. In a unique blend of history, reportage, and scientific study, Steve Silberman delves into this still mysterious neural phenomenon in his groundbreaking book. He has spent years researching the hidden history of autism. Additionally, he uncovers surprising answers to the question of why the number of diagnoses has increased in recent years. Silberman takes the reader on a cruise to Alaska—aboard are the leading programmers of Silicon Valley. He also transports us to 18th-century London, where the eccentric Henry Cavendish discovered Ohm's law—but never told anyone about it.