Principlev1PR-516
When direct testing is impossible, look for the schema…
When direct testing is impossible, look for the schema that explains the most diverse types of observations under a single mechanism.
Why This Is a Principle
Derives from Patterns Exist in Hierarchical Logical Levels (hierarchical patterns) and Schemas as Knowledge Organization Structures (schemas organize knowledge by specifying relationships). This is Lipton's 'inference to the best explanation' principle—prescribing explanatory coherence as validation criterion. General and actionable.