Toward a Unified Framework of Coherence in Physics_ A Comparative Analysis of Structural Fidelity Across Competing Theories

Main Paper w/Empirical Tests Abstract This paper introduces a coherence-based framework for evaluating the internal consistency, cross-domain applicability, and emergence logic of competing physics theories. Rather than comparing models by their predictive artifacts (particles, fields, or metrics), we assess them by structural fidelity: their capacity to sustain recursive coherence under entropy, chirality, and observer-embedded constraints. We apply this filter to canonical frameworks (General Relativity, Quantum Mechanics, String Theory), alternative models (Loop Quantum Gravity, Bohmian Mechanics, Emergent Gravity), and high-coherence systems-level paradigms. The results reveal that most established theories fail to generalize across domains or account for emergence from first principles. We propose that any unified theory must satisfy five structural conditions: internal symmetry-resonance, chirality-driven differentiation, entropy-stable emergence, observer-compatible recursion, and cross-scale fidelity. Among current models, only the Chirality of Dynamic Emergent Systems (CODES) satisfies all five. The coherence test thus functions not as an endorsement, but as a deductive filter: any theory that fails these criteria is incomplete. Any theory that passes them converges on the same structural attractor.