Cosmic Growth Theory

Taking logical growth as the first principle, this paper establishes a rigorous axiomatic system rooted in Logical Origin Theory and constructs a 45° conical covariant spacetime model using the geometry of the Pythagorean Frustum. It is mathematically and physically proven that 45° is the only stable inclination for rotationally supported growing structures, and the Pythagorean Frustum serves as the unique locally complete structural unit in this spacetime. The model incorporates four core dynamical mechanisms: uniform rotation, edge adsorption, surface thickening, and internal uniform expansion, enabling a fully self-consistent, stable, and contradiction-free cosmic evolution. This theory provides a unified explanation for quantum gravity, dark matter, dark energy, cosmic expansion, spatial flatness, quantum entanglement, black holes, white holes, wormholes, five-dimensional helical topology, and the foundation of unified field theory. It further reveals that time is an emergent macroscopic quantity from photon propagation along the cosmic optical axis, and photons serve as the physical carrier of the fourth dimension, achieving full unification of logic, geometry, spacetime, matter, and information. The model naturally resolves cutting-edge observational anomalies including the Hubble tension, gamma-ray burst photon time delays, and large-scale cosmic rotation. Three falsifiable observational predictions are proposed to meet the strictest scientific standards. This work provides a complete, foundational, and permanently self-consistent framework for understanding the origin and evolutionary laws of the universe.