Universal Dynamics of the Informational Net: Observational Evidence Against Dark Matter Halos.

We propose a closed-field theory in which spacetime is treated as an informational substrate with finite coherence capacity. By coupling a non-linear coherence field directly to the baryonic mass density, we derive a Poisson-like equation whose saturation regime reproduces galactic rotation curves without invoking dark matter halos. The theory predicts a smooth Newtonian-to-saturation transition, natural emergence of the baryonic Tully-Fisher relation, and suppression of deviations within the Solar System. Strict falsifiability criteria based on parameter universality across the SPARC database are established.