Structural Limits of Outcome Selection

This preprint addresses a well-known residual problem in decoherence-based accounts of quantum measurement: the emergence of a single, definite outcome. While decoherence successfully explains the suppression of quantum interference through environmental entanglement, it does not by itself provide a physical criterion for why one outcome becomes realized rather than merely dynamically isolated. The paper introduces the ZIP perspective as a minimal, physically motivated complement to decoherence. ZIP does not modify quantum dynamics, introduce wavefunction collapse, hidden variables, or branching universes. Instead, it identifies irreversible entropic stabilization as the mechanism governing outcome selection. Within this framework, multiple informational modes may coexist transiently, but only those configurations that achieve sufficient resistance to entropic diffusion persist as stable physical outcomes. Competing modes dissipate irreversibly into the entropic background. Decoherence remains fully valid as a dynamical description of phase randomization and environment-induced superselection; ZIP operates at the level of structural persistence and irreversibility. The paper further shows how probabilistic outcome weights naturally arise from differences in entropic robustness. In the linearized regime, stabilization likelihood scales quadratically with mode amplitude, yielding the Born rule as a statistical consequence of irreversible informational selection rather than as a fundamental probabilistic postulate. A minimal discriminating criterion between ZIP and decoherence-only interpretations is outlined. If outcome probabilities depend solely on decoherence strength and environmental coupling, ZIP is falsified. Conversely, reproducible correlations between outcome selection and measures of informational stability such as coherence lifetime, structural asymmetry, or resistance to entropic diffusion would support the ZIP interpretation. This work should be read as a technical note on the limits of decoherence-based explanations rather than as a proposal of new fundamental dynamics. It serves as an entry point into the broader ZIP framework, which investigates structural limits of interpretation across quantum theory, cosmology, continuous media, biology, and consciousness. This work is part of the ZIP (Zonal Informational Physics) framework, which studies structural constraints on physical descriptions rather than proposing new dynamical entities.