Reading this article reminded me a bit of Carl Sagan's "The Dragons of Eden"[1] (1977). It's subtitle: 'Speculations on the Evolution of Human Intelligence' exp

Reading this article reminded me a bit of Carl Sagan's "The Dragons of Eden"[1] (1977). It's subtitle: 'Speculations on the Evolution of Human Intelligence' explains the content pretty well. Mr. Sagan explains quite clearly in the introduction that he is speculating, but it is very entertaining speculation. [1] http://en.wikipedia.org/wiki/The_Dragons_of_Eden http://en.wikipedia.org/wiki/The_Dragons_of_Eden