Quantum Relativism: A Covariant Phenomenological Framework for State-Independent Metric-Induced Decoherence

This preprint introduces Quantum Relativism (QR), a covariant Effective Field Theory framework designed to address the quantum measurement problem by linking objective wavefunction localization to local spacetime tidal curvature (the electric Weyl tensor) and Bekenstein holographic entropy bounds. By formulating a time-local, completely positive and trace-preserving (CPTP) Lindblad master equation on spacelike hypersurfaces and embedding it within Hu-Verdaguer stochastic semiclassical gravity, the model avoids superluminal signaling and eliminates the unphysical stochastic heating found in conventional collapse theories. The paper also develops a bottom-up Relativistic Theory of Events, showing how irreversible event pruning leaves a geometric memory strain on spacetime that drives the thermodynamic arrow of time. Finally, it derives static acceleration filtering dynamics that explain why collapse effects remain masked in ground-based laboratories (τ ≈ 1.2 × 10⁶ s) while predicting a testable decoherence timescale of τ ≈ 41 s for spaceborne nanoparticle interferometry in orbital microgravity, alongside potential gravitational wave signatures for LISA. Both the compiled PDF manuscript and the full LaTeX source file (.tex) are included in this record.