RMP.2:5.4 - PostSelectionNeed Counterfactual
Consider two remaining values after a field design appears selected:
| Remaining value | Counterfactual test | Disposition |
|---|---|---|
| exact directory and identifier syntax for already-required observations and deviations | Every admissible syntax preserves the field family, spatial-temporal contrast, rival accounts, and criticism; an invalid non-recoverable syntax is outside the admitted range. | PostSelectionNeed |
| whether the only available sensor can discriminate salinity from temperature-dependent drift at the required scale | A positive result preserves the field comparison; a negative result requires another instrument, another evidence relation, or a stop. | ResearchDesignHold |
The difference is not how late the team plans to resolve the item. It is whether its value can change selection.