The Webb Metric: Mechanical Equilibrium as Replacement for Spacetime Curvature

General Relativity describes gravitational phenomena through spacetime curvature (Gµν). This paper proposes a mechanical replacement: gravitational effects emerge from kinetic pressure gradients between high-density Iron-Nickel anchors, not geometric deformation of a spacetime manifold. The Push-Pull Metric defines orbital stability as equilibrium between inward Dynamic Grip (Fe-core attraction) and outward Centrifugal Push (envelope pressure). Empirical validation includes: SDSS J0104+15 demonstrating hardware-dependent ignition; Jupiter as a stalled friction engine with Juno-confirmed fuzzy core; and interstellar objects ’Oumuamua/IM1 as asymmetrical shrapnel proving that without spherical density anchors, “spacetime” does not naturally accumulate matter. The framework concludes: there is no curvature—only the transmission of force between dense anchors.