This is one of several books on the topical subject of how to build a brain, a mind, an intelligence and so on. But, written by Ray Kurzweil, it carries a certain heft. He is convincing, and accessible, with his explanation as to the workings of the neocortex as translated into computing terminology. As such, he is able to describe the possible utilisation of several machine learning techniques within the context of a massive serial computing architecture to simulate the mind. On the other hand, he is somewhat dismissive of the role of emotions. He also, like many others, believes that features of the human brain such as consciousness are emergent properties of such a complex creation, but does not go much further in suggesting why and how this might be.