PFUSRC-EPI Even Valid Models Shall Be Discarded: On the Instrumental Nature and Self-Restraint of Scientific Systems Subtitle: Epistemological Closure of the PFUSRC Framework

Written by an Independent Researcher, this paper states all scientific models, including PFUSRC itself, are instrumental descriptive frameworks rather than absolute ontological truth. The history of science records constant replacement of old models by ones with stronger explanatory power, which contradicts the prevalent sacralization of mainstream physics. Drawing on the Diamond Sutra metaphor, this paper completes full epistemological closure for PFUSRC. It sets objective evaluation standards based on explanatory coverage and internal consistency, and embeds self-replaceable axiom foundations into the system to demonstrate how a complete theoretical architecture can maintain self-critical awareness.