This paper proposes a structural framework for understanding recurrent behavioral patterns across biological and non-biological systems without appealing to search-based explanations, probabilistic miracles, or teleological narratives. Rather than treating life and complex behavior as outcomes of exhaustive exploration in a vast possibility space, the paper argues that such patterns arise from structural asymmetries in state space that determine which trajectories are admissible into causal history at all. The framework introduces a pre-integrative notion of candidate admissibility, emphasizing exclusion and collapse rather than optimization, success, or struggle. The work does not offer predictive mechanisms, normative guidance, or guarantees of meaning. Instead, it delineates explicit boundary conditions to prevent misinterpretation, misuse, or metaphysical overreach. It is intended as a constraint on explanation rather than an expansion of it. This paper is exploratory, structural, and deliberately limited in scope. It does not seek to close unknowns, but to leave them unwritten.
ZHAOXUN YUN (Sat,) studied this question.