Tripartite Constraint Architecture: Emergent Regime Formation in Cross-Scale Bioelectric Systems

Formal Constraint Note — More Human Than Human, ARC Series (Paper II). We identify three interdependent constraint classes — structural, spectral, and scaling — whose joint action determines the admissible operating states of cross-scale bioelectric systems. We prove that their mutual intersection defines a compact regime with reduced dimensionality, monotonic spectral narrowing, and attractor convergence. These results imply that admissible system states are restricted to a reduced manifold defined by structural, spectral, and scaling compatibility, rather than freely spanning the unconstrained state space. The architecture provides the theoretical foundation for the ARC spectral operator introduced in Rodríguez (2026). Results are computational and theoretical; no experimental data are reported.