The core idea
When work reveals a different pathway or more damage, the scope should change explicitly rather than drift through undocumented additions.
How the mechanism works
Concealed conditions can invalidate assumptions and require new evidence, exclusions and verification steps.
When it becomes relevant
Typical trigger: Opening an assembly or discovering hidden damage.
Evidence that supports this interpretation
- New evidence is photographed
- The original assumption is revised
- Cost, boundary and verification are updated
Evidence that weakens it
- Work changes without explanation
- Evidence is discarded
- Cosmetic closure proceeds despite contradictions
What this concept cannot prove alone
A single observation, image or meter reading cannot confirm the complete failure pathway. Use this concept to form better questions, compare alternatives and decide which safe observation would be most informative next.
Safety and professional boundary
Structural, electrical, contaminated or hazardous discoveries require the appropriate specialist before work continues.
Primary references for this topic family
These references ground the general building-science or safety context. They do not diagnose a specific house, replace local requirements or certify a repair.
