The idea
A decision can be internally consistent and still be wrong if it is built on assumptions that have already expired.
Jim Carroll identified this as one of the recurring phrases accumulated across decades of keynotes, client conversations, research and writing when he introduced the Jimisms series in September 2026.
Why it matters
The purpose of a Jimism is to turn a complicated shift into useful shorthand: a phrase that helps leaders ask better questions about strategy, risk, assumptions and action.