Maybe logic

Wilson's popular rendering of multi-valued logic: replace true/false with a spectrum of confidence, and prefix assertions with "maybe" until the evidence earns something stronger. He credited Korzybski's non-Aristotelian system and von Neumann's three-valued logic.

His signature move, and one worth stating precisely: it does not mean everything is equally uncertain. It means the two-valued box is the wrong container for most claims.