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C.29.BB:3 - Forces
| Force | Tension |
|---|
| Useful total | A coarse amount can answer a capacity question while hiding the local peak needed by another decision. |
| Boundary choice | A smaller region is easier to observe; a larger one can turn uncertain exchanges into internal transfers. |
| Additivity | Summing parts is simple when the quantity has an additive meaning; overlapping populations or intensive variables require another construction. |
| Incomplete information | A bound may settle the decision even when individual transfers remain unknown. |
| Computational preservation | A model can obey a balance while its implementation uses incompatible transfer amounts. |