A is for Andromeda

Chapter 4 deals mainly with the evolution of survival machines and the development of the sense (touch hearing sight taste etc) and the brain. It also explains better the role of genes in a survival machine, which is somewhat limited, as they cannot directly influence the brain, so they must pack it with all the knowledge they believe is helpful and neccesary to survive, like a parent teaching a child. Afterward, they must wait and hope that they have done their job right and will be passed along to the next generation. Other meaningful developments which led mainly to the importance of the brain, are things such as memory and simulation.