Cosmic Lifecycle as Admissibility Reduction: A Structural Account of Particle Survival and Universal Evolution

This paper presents a structural interpretation of the universe’s lifecycle through the Paton System, framing cosmic evolution as a progressive reduction of admissible structure. Rather than treating cosmological change as a sequence of mechanisms, evolution is described as constraint filtering, where non-admissible configurations are progressively eliminated. The framework maps cosmic evolution across Paton System tiers, from possibility (Tier 2) through admissibility (Tier 3), observation (Tier 4), continuation (Tier 5), motion (Tier 6), structure (Tier 7), and boundary conditions (Tier 8). A particle survival hierarchy is introduced, showing the persistence of increasingly stable configurations over time. The model aligns with known cosmological timescales, culminating in a simplified end state where only admissible structures remain.