Question: The Platonia Dilemma was introduced in the book "Metamagical Themas" which was written by an author born in what year?
Sentence (from "Douglas Hofstadter"): Douglas Richard Hofstadter (born February 15, 1945) is an American professor of cognitive science whose research focuses on the sense of "I" (sense of self in relation to the external world), consciousness, analogy-making, artistic creation, literary translation, and discovery in mathematics and physics.
Relevant evidence: Yes