Spacetime Flux Conservation as the Meta-Conservation Law: Energy, Momentum, Angular Momentum, and Mass-Energy Equivalence as Geometric Projections in Time Field Theory

This paper proposes the core framework of Time Field Theory (TFT): spacetime flux conservation is the meta-conservation law underlying all classical conservation laws in physics. Based on the biaxial spacetime axiom system of TFT, we rigorously prove that energy conservation, momentum conservation, angular momentum conservation, and mass-energy equivalence are all geometric projections of this meta-conservation law across different dimensions and physical states. The precession of Mercury's perihelion is further presented as a dynamic empirical verification. This theory does not require the constancy of the speed of light or Noether's theorem as prior axioms, elevating TFT from a geometric description of gravity to a unified foundation for classical dynamics, and providing an ontological explanation for the existence of conservation laws. This work is Part 11 of the Time Field Theory series, embodying the core philosophical principle "Unification as Mapping". This is Part 11 of the Time Field Theory (TFT) series. This work establishes spacetime flux conservation as the parent conservation law underlying all classical conservation laws, with mass-energy equivalence and Mercury's precession as two complementary phenomenological verifications. It explicitly clarifies that TFT achieves ontological unification at the physical image mapping level, and does not claim to be a "theory of everything" that deduces all fundamental constants.