Principlev1PR-901
Ask 'why' iteratively until you reach a cause that is both…
Ask 'why' iteratively until you reach a cause that is both structurally changeable and preventive of the entire causal chain above it.
Why This Is a Principle
This principle derives from The behavior of a system arises from its structure… (system structure determines behavior) and Patterns Exist in Hierarchical Logical Levels (hierarchical causal patterns). It prescribes the stopping criterion for causal analysis: continue until you reach a level where intervention prevents the cascade. It's the actionable protocol behind the Five Whys.