Good vs Evil
The library keeps circling this: good and evil are not opposites the way hot and cold are. Pangborn says it plainly — "What is the opposite of a tree?" Wiener frames it as Augustinian versus Manichaean, arguing that the real enemy is entropy and confusion, not a scheming adversary, but notes the Augustinian position is almost psychologically impossible to maintain because we *need* the opponent. Carse completes the thought with something sharper: evil is never intended as evil, it "originates in the desire to eliminate evil." Then Stephenson's game designers discover the same structure from the commercial side — players assigned to "Good" and "Evil" factions were doing identical things, and when the labels collapsed, what replaced them wasn't moral clarity but tribal color-coding that felt "more visceral." The library's collective thesis isn't that good and evil don't exist. It's that the *binary* is a machine for generating the very thing it claims to oppose — the moment you sort the world into two teams, you've built the architecture of crusade, and even the Augustinian devil, as Wiener warns, will find himself "converted to Manichaeanism" if he isn't careful.