The hierarchy

Corollary 5.1. At the chemical-biological scale, the forces rank by record-strength as follows:

Σ(EM, s_chem) ≫ Σ(Strong, s_chem) = Σ(Gravity, s_chem) = Σ(Weak, s_chem) = 0

Only electromagnetic coupling writes configurable records at the chemical-biological scale.

The strong force, gravity, and the weak force all have zero record-strength at this scale.

The weak force is further distinguished by negative erasure-strength.

This formal hierarchy captures only direct write-capacity and direct erasure.

The enabling contributions of the other three forces are essential but qualitatively distinct.

The strong force provides the nuclear substrate on which EM writes.

The weak force provides the temporal window — stellar lifetime — in which EM can write.

Gravity provides the mass-energy concentration — planet formation, loop-closure — within which EM writes.

A complete functional picture requires both the formal hierarchy and the enabling analysis.

Kill switch KS-RM.4. If the hierarchy does not invert at different scales — if electromagnetism is also the strongest record-writer at the nuclear or cosmological scale — then the claim is not about functional tuning but about a universal property of electromagnetism, requiring a different explanation. LIVE — EMPIRICAL.