Angle-Only Dynamics and the Hubble Tension (AOH v4)

The central physical hook of this paper is that the same FDC/SCR readout grammar points simultaneously toward H₀ ≈ 67.37 km s⁻¹ Mpc⁻¹,a₀ ≈ 1.2 × 10⁻¹⁰ m s⁻²,χ_a ≈ 0.18314,B_AOH ≈ 0.09157, and the galactic BTFR scaling v⁴ = G M a₀. AOH develops this as a testable cosmological and galactic readout sector, not as a fitted replacement for standard cosmological or astrophysical modelling. Using Angle-Reduction Gravity (ARG) together with the structural constants supplied by the FDC/SCR framework, the paper studies how the Hubble scale, the MOND-type acceleration scale, environmental Hubble residuals, and galactic flat-rotation behavior can be read within a single no-new-scale grammar. The paper includes a conditional No-Go forcing of the ω¹ galactic carrier, the amplitude bridge a_gal = sqrt(a_N a₀), and the associated BTFR scaling v⁴ = G M a₀. It also formulates an observational protocol for the environment weight η, separating rank-based ordering tests from physically normalized slope tests. In particular, the environmental Hubble residual coefficient is organized through ΔH/H₀ ≈ B_AOH η, with B_AOH ≈ 0.09157 under physical η-normalization. Within the broader MOF–FDC–PFC–SCR–AOH program: - MOF provides the eliminative ontological foundation.- FDC provides the formal finite-distinguishability closure framework.- SCR records structural constant readouts.- PFC gives the physical reading layer.- AOH applies the same grammar to cosmological and galactic-scale phenomena. Readers approaching from observational cosmology or galactic dynamics may begin with AOH. Readers interested in the structural constants should consult SCR. Readers interested in the formal closure grammar should consult FDC. Readers interested in the foundational ontology should consult MOF. This paper should be read as a testable cosmological and galactic readout proposal, not as a finalized replacement for standard cosmological or astrophysical modelling.