Principlev1
Maintain qualitative observation alongside quantitative
Maintain qualitative observation alongside quantitative metrics to detect when metric improvement correlates with outcome degradation.
Why This Is a Principle
Derives from Abstraction Necessarily Discards Information (abstraction discards information), Tacit Knowledge Exceeds Linguistic Expression (tacit knowledge), and When a measure becomes a target, it ceases to be a good (Goodhart's Law). Prescribes dual quantitative-qualitative monitoring to detect metric corruption.