Editing Openai/6897769e-4ee4-800f-aba5-69cca34f701c (section)

==== - No full metric yet: We don’t have a derivation showing that a bath of boundary EM exchanges produces a spacetime metric gμνg_{\mu\nu}gμν whose curvature satisfies Gμν=8πGTμν/c4G_{\mu\nu} = 8\pi G T_{\mu\nu}/c^4Gμν=8πGTμν/c4 (or a QAT-variant). ====
* Spin-2 is qualitative: Saying “absorption (spin-1) + emission (spin-1) → effective spin-2” is suggestive, but not a QFT proof. We need to build a symmetric rank-2 composite that transforms as spin-2 and has the correct massless propagator.
* Equivalence principle not derived: QAT hasn’t yet shown why all forms of energy gravitate the same way (universality of free fall), nor why gravity couples to the traceful energy–momentum in just the GR way.
* Key classic tests not computed: Light bending (factor of 2 over Newtonian), Shapiro delay, gravitational redshift, frame dragging, gravitational waves’ speed & polarization—all must be reproduced (within experimental error) or explained as tiny deviations with clear parameters.