Expressive Power and Structural Limits of Determinism

This essay examines the relationship between expressive power, determinism, and the structural identity shared by epistemology and ontology. It argues that expressive systems can represent every coherent possibility within their domain while remaining unable to know, in advance, all outcomes generated from their own expressive capacity. Predictability is used only as an entry point; the deeper issue is whether a system can internally precontain every consequence it makes possible. Self-reference, open-ended construction, and structural inexhaustibility prevent such closure. The essay proposes that epistemic soundness and ontological stability are manifestations of the same structural condition: arrangements persist when their internal relations remain coherent. This unifies knowing and being under a single principle and challenges the viability of any finite trivial universe. A parsimony argument is introduced to show that a truly trivial system would not generate the loops, redundancies, and emergent patterns characteristic of reality. The world instead displays stable local behaviour nested within an infinitely expressive, structurally open system.