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G.3:3 - Forces
| Force | Tension |
| Pluralism vs comparability | Preserve tradition‑specific meaning ↔ enable admissible cross‑tradition use. |
| Expressiveness vs legality | Model rich measurement semantics ↔ block illegal operations “by construction”. |
| Portability vs honesty | Encourage reuse ↔ forbid implicit crossings and hidden loss. |
| Ease of authoring vs auditability | Keep authoring teachable ↔ require explicit pins, provenance, and tests. |
| Downstream flexibility vs upstream discipline | Let CAL/selector choose policies ↔ keep thresholds/policy cut‑offs out of CHR. |