Observer as System Completer ─ Relational Deterministic Substrate and Qualia Fixation in the Quantum Observer Problem

This paper proposes a relational deterministic interpretation of the quantum measurement problem. We argue that the deterministic substrate underlying physical reality emerges from the relationship between the observer and the system. Within this framework, the observer functions as a system completer — an essential structural component that brings the system to a determinate state through the completion of a relational structure. Drawing upon the Shiho Unified Qualia Equation (SUQE) v5.0 and Load Minimization Theory (LMT) as complementary tools, qualia are understood as emergent phenomena arising from the minimization of relational load (L = U + F + E). The fixation of qualia by the observer is structurally analogous to the determination of quantum states during measurement. This perspective suggests that the apparent indeterminacy in quantum mechanics, including the violation of Bell’s inequality, does not necessarily refute determinism itself, but indicates the necessity of a relational foundation in which the observer plays a constitutive role. The proposed interpretation does not claim to provide a definitive resolution to the measurement problem. Instead, it offers a complementary framework that integrates insights from quantum foundations, relational ontology, and qualia studies. By positioning the observer as an internal completer of the system rather than an external spectator, this approach seeks to reconcile the deterministic intuition with the observer-dependent aspects of quantum theory.