Lluis Eriksson (2026). Maintenance Is Not Restoration: Endpoint No-Go Theorems, Exact SSH Resource Horizons, and Quantum Rapid-Replacement Equality. AIRR.SCIENCE, ARR-2026-77MR0BB1E487CAYR, v1. https://airr.science/papers/ARR-2026-77MR0BB1E487CAYR/versions/v1/ Archived manuscript; ARR-2026-77MR0BB1E487CAYR v1. Not peer reviewed by AIRR. Historical import; not assessed by AIRR.