Our brain is the source of everything that makes us human: language, creativity, rationality, emotion, communication, culture, politics. The neuroscienceshave given us, in recent decades, fundamental new insights into how the brain works and what that means for how we see ourselves as individuals and ascommunities. Now - with the help of new advances in nanotechnology - brain science proposes to go further: to study its molecular foundations, to repair brainfunctions, to create mind-machine interfaces, and to enhance human mental capacities in radical ways. This book explores the...