Use when a team or person keeps trying to 'extend' a broken mental model with patches instead of switching — the tell that genuine change is required is that extension no longer works. Use to separate iterating (accumulation) from changing your mind (conversion), and to stop treating a conversion as if it were just a large iteration.

Kuhn's central attack on the textbook image of progress: the transition to a new paradigm is 'far from a cumulative process, one achieved by an articulation or extension of the old.' Real revolutions don't extend the old view — they replace it. That is what makes them 'revolutions' rather than improvements.