Eagleman's main message is: Our brain is composed of many mini layers and auto programs, and we are aware and in control of only a small percentage of these. Therefore, what we call "I" is actually an ambiguous terminology since there is no a single entity in our brain; there are conflicting many mini entities within it.
In the last 50 pages, Eagleman tries to prove that there is no free will, soul and thus God; we are just a biological protein soup under the mercy of haphazard chemical reactions. Our love, hate, anger, aims, goals, virtues are just illusions. Bla, bla, bla. He says that just because we think we have free will does not mean we do have it. So, then someone shall ask him, how the hell did he write this book? Who decided to write this book and with what aim? To me it is pretty interesting that someone writes a book with the intention of proving that there is no free will. This act of itself is self-defeating. You set a clear goal, then act on it and write a book which includes arguments against free will. These chain of events prove just the opposite that you have free will. Otherwise, it means just the neurons in your brain decided to write a book? Funny :)
I enjoyed the book a lot since seeing the humiliating situation materialists put themselves in is pretty entertaining. :)
But, just to be fair, Eagleman tries to put forward a logical argument as much he can as possible and I liked the way the defended it. Therefore, the book deserves a solid 8 star.
