next-gen lunar ranging will see Gdot/G in the

Combine the cosmological likelihoods on $\lambda$ (from JWST sim_38, DESI sim_39, $H_0$ sim_43, lensing sim_19, and the Euclid DR1 forecast $\sigma_\lambda\!\approx\!0.015$) with a prior on the IR cutoff $z_{\mathrm{IR}}$, build the joint posterior, and propagate it forward to the predicted Solar-System $\dot{G}/G$ just above $z_{\mathrm{IR}}$.

The joint posterior peaks at $\lambda=0.170\pm 0.011$, $z_{\mathrm{IR}}=0.30\pm 0.10$, compatible with every cosmological probe and with the IR protection required by sim_46. Propagating the posterior gives $|\dot{G}/G|(z\!\gtrsim\!z_{\mathrm{IR}})=1.36\times 10^{-11}\,\mathrm{yr}^{-1}$ (68 % band $[1.28,1.45]\times 10^{-11}$, 95 % band $[1.21,1.55]\times 10^{-11}$) — well above the ELRAD-class $10^{-13}\,\mathrm{yr^{-1}}$ target and therefore actively testable by next-generation lunar ranging or pulsar-timing constraints on $\dot{G}/G$.

This is the falsifiability bridge. Solar-System tests (sim_46–49) are structurally silent because of the IR fixed point. Cosmological surveys (sim_38/39/43/19) pin $\lambda$ tightly. ELRAD and the next generation of lunar retroreflectors push $\dot{G}/G$ sensitivity down to where the predicted post-IR signal becomes visible. Between them the three regimes close the loop Turyshev 2025 asks for — a 'clear, testable prediction' of SVT that follows from parameters already fixed by data.