The Dragons of Eden: Speculations on the Evolution of Human Intelligence

Reading Carl Sagan’s “The Dreams of Dragons” is like reading an ancient polymath’s writing – Bacon or Voltaire proposing their best insights from renaissance knowledge. Sagan draws on 1970’s knowledge of the human brain and consciousness to propose a broad vision for what was known from “recent” researches from the likes of Bronowski, Dement, Eccles, Gazzaniga, Gould, Leakey, Minsky, Sperry and Von Neumann. Many of their researches were cutting edge at the time, but have been overshadowed, modified or overturned by new work by themselves and others.