Principlev1
When a metric improves at one system location, immediately
When a metric improves at one system location, immediately check whether related metrics have worsened at adjacent locations to detect displacement effects.
Why This Is a Principle
This is derived from understanding of system dynamics (The behavior of a system arises from its structure, not from, The human mind is not adapted to interpreting how multi-loop) and provides specific actionable guidance for detecting a particular type of unintended consequence. It's a principle rather than a rule because it applies broadly across different types of systems and metrics.