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PSD.4:3 - Forces
| Force | Tension |
| Actionability | A current cut is needed to proceed, while premature closure can reverse the result. |
| Completeness | Wider scope can reveal consequences, while unlimited scope destroys affordability and accountability. |
| Explicit exclusion | Material omissions must stay visible, while a boundary register should not become an encyclopedia. |
| Stability and revision | Dependent work needs a current scope, while new evidence can legitimately reopen it. |
| Exact membership | Exact contextual membership sometimes matters, while ordinary problem boundaries need not become U.Scope values. |
| Authority | A boundary can inform later work, while it does not authorize the later decision or erase specialist jurisdiction. |