Dealing with single moments in the life of the human brain, this book provides explanations of why a tennis player cannot be seeing the ball at the instant when it is struck, or even for most of its flight; and why surprises feel surprising, and boredom boring. The author argues that, by understanding just how much subconscious decision-making the brain manages to get through before each moment of awareness, we can begin to appreciate the true wonder of consciousness - and see why the human brain is the most complex system that science is ever likely to encounter.