Creating superior intelligence would be the biggest event in human history. Unfortunately, according to the world's pre-eminent AI expert, it could also be the last.In this groundbreaking book, Stuart Russell sets out why he has come to consider hisown discipline an existential threat to humanity, and how we can change course before it's too late. In brilliant and lucid prose, he explains how AI actually works and its enormous capacity to improve our lives - and why we must never lose control of machines more powerful than we are.