The Standard Model as an Open-System Effective Theory: Latency Portals, Running Dissipation, and Precision-Spectroscopy Kill-Tests (MetaTime v40.3: Derived Line-Shape Constraints and Portal-RG Consistency)

We propose a functional, information-geometric re-organization of the Standard Model (SM)in which particle species are classified by their information-processing roles rather than solely bygauge quantum numbers. Building on the MetaTime program (v36–v39), we treat (i) inertial massas an operational proxy of state complexity Π, and (ii) nonzero processing latency as an effective metric impedance encoded by a causal, gauge-invariant, non-Markovian influence kernel K ina Schwinger–Keldysh open-system effective field theory (EFT). We introduce the ComputationalAtom architecture: nuclei as bulk-anchored deep storage (backend) and electrons as boundary I/Oagents (frontend), with orbital geometries emerging as latency-minimizing transport configurations.To move beyond metaphor, we provide a minimal parameterization of K with three calibratableparameters (γ, τ, ℓ) controlling dissipation strength, temporal memory, and spatial coherence. Wederive the leading nonrelativistic imprint as a small anti-Hermitian correction to atomic evolutionand obtain an order-of-magnitude bound on the effective damping rate from hydrogen 1S–2S precision spectroscopy. Finally, we enumerate concrete falsifiability (kill) tests spanning atomic clocks,resonance line-shapes, and collider event-shape correlations, thereby framing the “SM-as-OS” proposal as a constrained, testable open-system EFT.