Experiential Structural Ontology and the Interpretation of Quantum Mechanics

Quantum mechanics is empirically extraordinarily successful yet continues to admit a wide range of competing interpretations. While the formalism constrains probabilistic relations between preparation procedures, measurements, and outcomes, it does not uniquely determine the ontology that realises those relations. Interpretations such as Everettian quantum mechanics, Bohmian mechanics, objective collapse theories, relational quantum mechanics, and QBist approaches preserve the predictive structure of the theory while diverging sharply in their metaphysical commitments. At the same time, developments within quantum theory itself weaken the classical ontology of independently existing objects with intrinsic properties. Entanglement, violations of Bell inequalities, and decoherence theory collectively support the view that physical description is fundamentally relational. Structural realism therefore provides a natural interpretive framework, treating the mathematical structure of physical theory as ontologically primary. However, structural realism alone leaves open the question of instantiation: how relational organisation becomes concrete as a determinate world. This paper develops Experiential Structural Ontology (ESO) as a non-interventionist interpretation of quantum mechanics that addresses this problem. ESO retains the relational ontology suggested by quantum theory while proposing that relational constraint organisation is enacted as manifestation within a fundamental experiential field. On this interpretation, the wavefunction represents relational constraint architecture governing transitions within this field, measurement corresponds to the stabilisation of particular regimes within that structure, and decoherence explains the emergence of classical stability without invoking collapse dynamics or ontological branching.