Two Readings of One Geometry: The Lensing-Dynamics Discrepancy Solution

Abstract

Why do gravitational lensing and galactic dynamics disagree? This work shows that light and matter read two distinct projections of the same underlying geometry. We derive a fixed number before comparing to data: 19/15 ≈ 1.267. KiDS, GAMA and HSC catalogues measure 1.2706 ± 0.0287. The same factor improves lensing fits — and degrades dynamical fits. No fitting. No free parameters. Full reproducibility scripts and data are included.