Causal Memory Gravity: From Planck-Scale Network Dynamics to Cosmology and Galaxies

Causal Memory Gravity (CMG) is a research programme based on the idea that spacetime microstructure retains a causal record of past curvature, leading in the continuum limit to an effective nonlocal correction to gravity. This synthesis article presents the logic, key equations, and principal results of the programme in a compact and accessible form. The article connects the Dynamic Planck Network (DPN) microscopic picture to the effective CMG action, then follows the theory across scales: late-time cosmology, the linear growth sector constrained with DESI DR1 covariance-aware data, the nonlinear screening mechanism required for substantial growth suppression, the galactic regime and cross-scale closure, the emergence of quantum dynamics and matter-like excitations from the same network structure, and the ultraviolet completion obtained in a minimal FRG truncation. This record is intended as an entry-point document for the broader CMG corpus. It complements the more technical papers in the series, including the foundations / linear-sector / N-body roadmap paper, but does not replace them. Its role is to provide a coherent overview of the programme’s structure, assumptions, principal formulas, strongest current results, and the most important next empirical and numerical tests.