The Human Delta: Dirac-Localized Processing, PCAM, and a Non-Markovian Thermodynamic Resolution of the Fermi Paradox in MetaTime v36.1

This manuscript presents a minimal, self-contained application of the MetaTime framework (v36.1) to the Fermi paradox. It introduces a distributional model of technological civilization as a Dirac-localized source of irreversible information-processing density, termed the "Human Delta". By enforcing Landauer-limited thermodynamic bookkeeping, we demonstrate that sustained irreversible computational throughput obligates either a reduction in dissipation per operation or the export of heat into channels weakly coupled to electromagnetic (EM) observables. We apply the Principle of Computational Action Minimization (PCAM) as a non-teleological, effective selection rule on long-lived histories , arguing that PCAM drives the EM coupling fraction of unavoidable dissipation downward as a statistical outcome of long-term stability. Furthermore, this work upgrades the EM-coupling prescription to a rigorously non-Markovian closure, where the coupling fraction depends on a latent state obeying a causal relaxation law. This history-dependent formulation introduces a strict falsifier channel based on the hysteresis and path dependence of observability under matched present conditions.