Gödel, Escher, Bach: an Eternal Golden Braid

By Douglas R. Hofstadter (1999)

A metaphorical fugue on minds and machines in the spirit of Lewis Carroll. Douglas Hofstadter's book is concerned directly with the nature of "maps" or links between formal systems. However, according to Hofstadter, the formal system that underlies all mental activity transcends the system that supports it. If life can grow out of the formal chemical substrate...