Coherent Gravity Theory (CGT): An Onboarding Primer

Description This series presents Coherent Gravity Theory (CGT): a geometric framework relating galaxy dynamics (MOND phenomenology), relativistic structure, cosmology, and internal-sector particle-physics structure from higher-dimensional geometry. Each paper is published as its own Zenodo record/DOI (one DOI per paper). Paper 0 is the onboarding/intro equivalent for the series. Papers 7–9 are standalone companion papers in the same framework. The DOI links listed below are maintained as the pointers to the newest published versions of Papers 1–6. Core claim: Spacetime includes compact extra dimensions — a Hubble-scale circle (setting the MOND acceleration scale a_0 = cH_0/(2pi)) and an S^7/Z_3^3 orbifold (encoding particle physics). The framework derives rather than assumes: The MOND interpolating function nu(x) = sqrt(1 + 1/x) The galaxy cluster sqrt(3) enhancement from 7D Vlasov dispersion The cosmological constant Lambda = 2.03 H_0^2/c^2 The Koide formula K = 2/3 for charged leptons A Cabibbo-angle normalization template theta_C = 45 deg / sqrt(12) = 12.99 deg (model/program; full operator reduction remains open) Empirical validation: SPARC rotation curves (175 galaxies), X-COP cluster data (7 clusters), wide binary EFE suppression, Bullet Cluster lensing offsets. Series papers (latest Zenodo records): Paper 1 — MOND from 5D Geometry: Quadrature Addition and SPARC Validation Paper 2 — Deriving the Galaxy-Cluster Enhancement in CGT from 7D Collective Modes Paper 3 — General Relativity and a MOND-like Sector from 7D Kaluza–Klein Reduction Paper 4 — Quantum Mechanics and Special Relativity from 5D Geometry Paper 5 — Dark Energy from Warped Geometry and Higher-Dimensional Embedding Routes Paper 6 — Fermion Mass Geometry: Koide, Cabibbo, and Quark Distortions from (S^7/\mathbb{Z}_3^3) Orbifold Structure Paper 7 — Black Holes as Sector Boundaries in Coherent Gravity Theory (CGT) Paper 8 — Quantum Mechanics as Fiber Projection: Propagators, (\sigma)-Localization, and Measurement Baths Paper 9 — Turbulence Intermittency from A(_2) Singularity Geometry