Filtration as Admissibility Architecture A Possest–PQF Treatise on Threshold, Topology, and Operative Emergence

This text reconstructs filtration at the highest level of abstraction compatible with the Possest–PQF framework. Against the trivial image of filtration as mechanical separation, it develops filtration as a regime of admissibility governing the transition from intensity to local operability. The argument proceeds simultaneously on conceptual, mathematical, biological, perceptual, technical, and political planes. Filtration is formalized as a nested threshold family, as a nonlinear dynamical evolution of admissibility, as a geometry of effective accessibility, as a persistence-bearing topological structure, and as a regime-producing chain capable of generating novelty only when the filtration itself changes. The result is a unified theory in which perception, memory, biological viability, platform visibility, public legibility, and conceptual stabilization appear not as separate domains but as distinct expressions of one and the same process: the production of admissible reality.