Emergence XVI: Mass from Amplitude and Acceleration in the Emergence Model

In the Emergence model, the primitives are order, amplitude, acceleration, and polarity. Mass is not among them. This paper demonstrates that mass emerges from two primitives: amplitude (via energy) and acceleration (via inertia). No mass parameter is assumed anywhere in the derivation. The only inputs are the wave equation, Noether's theorem, and the emergent speed of light c. The result recovers E = mc^2 as a consequence, not as an input. The novelty lies not in the final formula but in the primitive hierarchy: acceleration is primitive, mass is derived. This offers an alternative foundation for mass, one that does not invoke a Higgs field. The Standard Model is not contradicted; the two approaches operate at different levels.