A Projection-First Reframing of Physics

This paper presents a projection-first reframing of physics motivated by results established in Modal Triplet Theory (MTT). It introduces no new dynamics, degrees of freedom, or empirical claims. Instead, it abstracts a small set of structural facts shown to be unavoidable in MTT: effective physical description requires noninjective projection, projection is stable only within finite admissibility margins, and loss of admissibility forces noninvertibility of effective evolution. From these facts alone, many characteristic features of modern physics follow as structural consequences rather than independent postulates. Quantum mechanics emerges as the unique stable representational language for projected dynamics; probability reflects degeneracy under projection; irreversibility arises from loss of invertibility; quantum field theory appears as a statistical description of large ensembles; geometry and gravity function as consistency bookkeeping for admissible projection; horizons and entropy mark admissibility boundaries; and the arrow of time aligns with the ordering of admissibility exhaustion. The reframing preserves the empirical success of existing theories while explaining why they arise, why they are universal, and why they fail in structured ways. Modal Triplet Theory is treated as one explicit realization that makes these structural constraints mathematically precise.