Replaceability / Deep Optimization
Kind: tension
Record: tension:deep-optimization-replaceability
Canonical: Schema
"replaceability" (structural-core layer) is traded against "Deep Optimization" (structural-core layer) — a principle cannot be scope-separated from a quality, metric, or cost it competes with; resolve by measuring "Deep Optimization" and choosing an explicit operating point.
Listed in Tensions, after Reusability / Over-Generalization and before Interchangeability / Specialized Optimization.