Motti Intermediate Physics — HAL: Gravitational Coupling, Orbital Dynamics, and Consistency with Binary Pulsar Observations

The HAL framework introduces G_eff = G_N/C0 as the gravitational coupling. A naive Peters formula application predicts 1.4% deviation from GR in orbital period decay, in 28-sigma tension with the double pulsar PSR J0737-3039. We resolve this by identifying that the coherential field C contributes gravitational mass M_coh = alpha_em * M_ADM, ensuring G_eff * M_eff = G_N * M_ADM exactly. The Newtonian potential and orbital period decay are identical to GR. The gravitational wave amplitude is not similarly protected: h^HAL = C0 * h^GR, giving epsilon = +alpha_em = +0.7297%. HAL is fully consistent with all binary pulsar data while retaining three independent falsifiable predictions all equal to alpha_em.