Immutability / Allocation Cost
Kind: tension
Record: tension:allocation-cost-immutability
Canonical: Schema
"immutability" (computation-core layer) is traded against "Allocation Cost" (computation-core layer) — a principle cannot be scope-separated from a quality, metric, or cost it competes with; resolve by measuring "Allocation Cost" and choosing an explicit operating point.
Listed in Tensions, after Pure Functions / Stateful Operations and before Reproducibility / Continuous Updates.