The inside energy content of the extended particle obeys Umov’s estimate of 1873 mc^2/γ ≈ mc^2 (1-0.5β^2) ≤ mc^2 under low velocities despite γmc^2 ≈ mc^2 (1+0.5β^2) ≥ mc^2 for the total kinetic energy. Geodesic auto-accelerations in mechanics / gravitation of nonlocal energy fluxes drive the probe body toward equipartition of kinetic energies of inside chaos, mc^2/γ, and its ordered translation,mc^2[γ-γ^(-1)]. Adaptive thermo-mechanics of delocalized elementary energies due to competing degrees of freedom for inside chaos and translational order should replace Newton’s reductionism of point mass without inside energy variables.
Based on “Gravitational attraction until relativistic equipartition of internal and translational kinetic energies”, Astrophys. Space Sci. 363:39 (2018).