This accepted manuscript is structurally governed by THE META-INDEX (Zenodo DOI: 10.5281/zenodo.18169167)

This paper introduces the A–B Transition Ontology as a structural completion criterion layered onto standard unitary quantum evolution. Rather than treating the wave function as an indeterminate ontological state, we interpret it as a regime of structured incompletion between a potential configuration (A) and a realized outcome (B). Central to the framework is Process Resistance (ρ), defined as an action-barrier proportional to the system’s maximal information capacity, ρ = αℏ ln(D_eff). Completion is modeled as a rate-limited accumulation of action governed by environmental coupling and intrinsic energy scales, yielding a characteristic transition time τ = ρ / (E_int + ℏ(γ + Γ)). In the limit of vanishing environmental interaction, the model predicts a structural lower bound on completion time (Saturation Lag), τ_min = ρ / E_int. For superconducting qubits (f ≈ 5 GHz), this lag lies in the picosecond regime. The framework does not modify linear quantum dynamics; instead, it proposes a completion criterion consistent with decoherence theory and information thermodynamics, offering a structurally constrained interpretation of quantum-to-classical emergence.