A Geometric Framework for Cosmic Energy Inversion Theory (CEIT-v4) Space-time Torsion as a Unified Replacement for Dark Matter and Dark Energy within Ehresmann–Cartan Geometry

The standard ΛCDM cosmological model faces persistent observational tensions—the 5.6σ Hubble constant discrepancy, the non-detection of dark matter particles, and the JWST discovery of massive galaxies at z>10—that collectively motivate a fundamental revision of gravitational dynamics. We present version four of the Cosmic Energy Inversion Theory (CEIT-v4), a complete geometric-field framework wherein space-time torsion, dynamically sourced by gradients of a primordial scalar energy field within Ehresmann–Cartan geometry, replaces both dark matter and dark energy. The foundational Inversion Principle establishes a universal spatial hierarchy because structure formation irreversibly depletes local field energy. The resulting geometric pressure reproduces flat galactic rotation curves, cluster lensing, and satellite orbital dynamics without hypothetical particles. An orbital stability condition predicts the Milky Way warp in quantitative agreement with Gaia DR3 proper motions. The temporal decay of the homogeneous background field drives cosmic acceleration, while field-dependent particle stability accounts for the rapid early galaxy assembly observed by JWST. A closed cyclic cosmology is realized through black hole evaporation replenishing up to a quantum bounce at . Governed by six fixed parameters, CEIT-v4 achieves 1.92% mean error on 42 rotation curves, reduces Hubble tension to 0.7σ, and aligns with Planck CMB spectra at 99.1% confidence. Falsifiable predictions—terahertz halo emission, blue-tilted primordial gravitational waves, and high-redshift fine-structure variations—offer decisive tests within this decade.