Porter, Quinn: The Coherence Threshold and the Emergence of Interiority

A dynamical condition is presented under which a system forms an interior and sustains structured activity across time. Let λ_self denote the rate at which prior internal states contribute to subsequent state formation, and λ_env denote the rate at which environmental input perturbs that evolution. When the ratio λ_self / λ_env exceeds a critical threshold R_star and is maintained across the system’s characteristic timescale, propagation organizes into stable trajectories that preserve relationa