# Immutability / Allocation Cost

> "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.

Record: `tension:allocation-cost-immutability`
Kind: tension
Canonical: https://banes-lab.com/ontology/schema#tension-allocation-cost-immutability

## tensions-with

- [Immutability](https://banes-lab.com/records/arch/immutability.md)
- [Allocation Cost](https://banes-lab.com/records/lex/allocation-cost.md)