Research on Cosmic Light Travel Time Difference, Civilization Window Dislocation and the Inability of Intelligent Civilizations to Encounter Each Other Based on the Unified Theory of Light Ontology

The traditional systems of astrobiology, deep-space observation and Fermi Paradox research are all built upon three classical frameworks: the finite spacetime model of the Big Bang, the hypothesis of real-time observation via light speed, and the assumption of infinite civilization development. Mainstream studies generally hold that the universe contains a vast number of galaxies and habitable planets, so intelligent civilizations should be widely distributed. They attribute humanity’s failure to discover extraterrestrial civilizations merely to insufficient detection technology and a short observation period. This cognitive paradigm has guided extraterrestrial civilization exploration for nearly a century, yet it cannot reasonably explain the cosmic "Silent Paradox". Based on the closed-loop system of light ontology proposed in A Brief History of the Universe: The Grand Cycle Unified Theory of the Universe, this paper breaks through the limitation of the 13.8-billion-year finite universe model. Taking an infinite spacetime universe, all things originating from light, matter formed by bound photons, and all evolutions governed by the iron laws of light as fundamental axioms, this study systematically reconstructs the underlying logic of cosmic civilization evolution. It thoroughly analyzes four core cosmic mechanisms. First, the observable universe of humanity is essentially a system of delayed images formed over hundreds of millions of years, and all deep-space observation data belong to ancient history with no reference value for the real-time universe. Second, there exists an insurmountable dimensional gap between the million-year timescale of intelligent civilization survival and the hundred-million-year timescale of interstellar information propagation, which means civilizations will die out completely before being observed. Third, intergalactic information transmission is blocked by four absolute barriers including time, space, physics and cognition, making effective transmission and decoding naturally impossible. Fourth, the iron laws of light ontology inevitably trigger the backlash of cosmic rules against advanced civilizations; the more sophisticated a civilization’s technology and the stronger its desire to break constraints, the faster it will self-annihilate. Through multi-dimensional demonstration, this paper draws a subversive conclusion: extraterrestrial intelligent civilizations are not scarce, but inherently incapable of encountering, communicating or coexisting with one another. Humanity’s ongoing extraterrestrial civilization detection projects are not hindered by technical deficiencies, but represent large-scale ineffective exploration resulting from a lack of understanding of the fundamental laws of light, spacetime scales and the ultimate fate of civilizations in the universe. This research thoroughly revises the traditional understanding of the Fermi Paradox, establishes an ultimate theory of civilization evolution adapted to an infinite universe, and provides a brand-new underlying paradigm for related research among future generations.