Spin as a Signature of Informational Exclusion

Summary: Conceptual interpretation of quantum spin as a structural signature of informational stabilization under observer-relative exclusion. This pre-print proposes an informational reading of quantum spin grounded in the Universal Theory of Information (TUI). Spin is not treated as an intrinsic property of particles, but as the observable signature of how information stabilizes through phase-dependent exclusion relative to an observer. Within this framework, different spin values correspond to different depths of informational validation, rather than to distinct physical substances. Description:This manuscript presents a conceptual and ontological interpretation of quantum spin within the framework of the Universal Theory of Information (TUI).Rather than postulating spin as an intrinsic internal degree of freedom, the paper interprets spin as the residual trace of how information becomes stable under observer-relative phase inversion and exclusion. The central claim is that stabilization of information does not occur through accumulation alone, but through structured exclusion of incompatible alternatives under phase displacement. When an informational configuration must remain coherent not only under its own inversion, but also under inversion relative to the observer’s evolving informational trajectory, a double-valued closure becomes unavoidable. This structural requirement directly corresponds to the emergence of spin-1/2 behavior. Within this framework: Spin-0 corresponds to the reading of pure informational presence, prior to orientation or relational interpretation Spin-1 corresponds to first-order relational reading, encoding directional propagation and hierarchical ordering between informational events Spin-1/2 emerges when stabilization requires double exclusion involving the observer, producing an irreducible phase-dependent validation Spin-2 corresponds to the level at which informational density constrains the framework of future interactions, providing an informational interpretation of gravitation Higher half-integer spins are interpreted as composite stabilization patterns arising from multiple coherent layers of observer-relative validation, without introducing new fundamental degrees of freedom. The paper shows that once information is discrete, observer-relative, and stabilized through exclusion under phase displacement, SU(2)-like double-valued structures are not optional but structurally necessary. Spin therefore appears as a level-dependent reading of the same informational substrate, determined by how stabilization is achieved, rather than as a hidden intrinsic attribute of matter. This work does not propose a new formalism or modification of quantum mechanics. It is an interpretive framework compatible with existing formalisms, aimed at clarifying the ontological meaning of spin and its necessity. It connects phase, oscillation, decoherence, and observer dependence within a single structural mechanism, extending the stabilization logic introduced in the companion paper on the NNO operator. Relation to other work This article builds directly on: The Universal Theory of Information (TUI): Emergence of Physics from Informational Dynamics (https://doi.org/10.5281/zenodo.15106945) The NNO operator: Double Negation and Oscillation as Informational Conditions for the Stabilization of Observed Reality (https://doi.org/10.5281/zenodo.18443043) It can be read independently, but reaches its full coherence when considered as part of the TUI–NNO–SPIN conceptual sequence. About the author Mathieu Valentin Rondet is an independent researcher with a dual background in science and digital systems. He holds two master’s degrees in molecular and developmental biology, genetics and biochemistry (earned in France and the U.S.) and has spent over two decades designing physical simulations, procedural dynamics, and interactive systems for virtual environments. His approach blends biological information studies, structural logic, and information-based modeling to explore new perspectives on fundamental physics and observer-relative reality,