The World Inside
Silverberg, Robert. The World Inside. Garden City, NY: Doubleday, 1971.
Features a world of three-kilometer high urban monads, whose citizens almost never leave. Characters suffering inchoate rebelliousness are co-opted or "morally engineered"; those who cannot or will not adjust are killed. See this Category, C.M. Kornbluth, "The Luckiest Man in Denv," M. Reynolds, The Towers of Utopia. See in the Category Literary Criticism, T. Dunn and R. Erlich, "The Mechanical Hive." (TWI is required reading for thinking through over-population on Earth given human ingenuity in solving technical problems combined with arrogant ideas on our destined dominion of Earth and beyond — and given the "givens" of human nature.)