Behind the Walls of Terra
Farmer, Philip José. Behind the Walls of Terra. New York: Ace, 1970.
We learn in The Magic Labyrinth (q.v.) that human souls (wathans) in the universe of Riverworld are created by machines; in BWT we learn (without much being made of it) that our universe itself was machine-created (88-93).
RDE, Title, 12Aug19