Validation / Iteration Speed
Kind: tension
Record: tension:iteration-speed-validation
Canonical: Schema
"validation" (computation-core layer) is traded against "Iteration Speed" (structural-core layer) — a principle cannot be scope-separated from a quality, metric, or cost it competes with; resolve by measuring "Iteration Speed" and choosing an explicit operating point.
Listed in Tensions, after Testability / Encapsulation Extremes and before Verification / Cost.