Articulate schemas as falsifiable claims with specified

Why This Is a Principle

This is a derived principle from Generative Externalization (externalization produces new understanding), Illusion of Explanatory Depth (gap between felt understanding and articulation), and Externalization Exposes Hidden Structure (externalization exposes gaps). The principle tells you HOW to operationalize the requirement that schemas must be tested - by making them specific enough that evidence can contradict them. It's actionable (tells you what to do), general (applies across domains), and grounds to axioms about externalization and metacognition.