generic auto-antonym: circle-logic

Items of circle-logic, in which something is true at the two extremes but not in-between, can always be considered instances of auto-antonyms. For example, two people may never speak to one another because they are simply not acquainted (the in-between case) or, if acquainted, because they are great enemies, or great friends. (cf: “It was one of those friendships where the two start off hardly speaking to one another, and ends up with them never speaking to each other at all.”)
keywords: life, General Systems Theory