Here he discusses visions of future humanity to be found in the science fiction literature and elsewhere. He emphasizes Charles Darwin’s observation that, in the distant future, all of the species currently alive will have evolved into new forms. He suggests many different possibilities for humans and indicates that we may be able to select [...]

Here he discusses many of the great villains of science fiction literature: Darth Vader and the evil emperor, The Mule, Alien, and the many reptilian and insectoid creatures. He notes that in almost every case, there is some ambiguity about who is really evil. The discussion turns to historical situations of evil: slavery and the [...]