ELECTROMAGNETIC SUBSTANTIAL MATRIX AND THE MODAL DISCIPLINE OF OBJECTIVITY: a critical–propositional analysis of Hugang Cui's Spacetime Substantivalism 31 in confrontation with the axioms, phenomenic elements, Inducer Effects, cosmogonic theorem, and

This article presents a critical–propositional analysis of Hugang Cui’s Spacetime Substantivalism 31: The Electromagnetic Substantial Spacetime Matrix Theory — Ontological Restructuring of the Underlying Logic and Physical Essence of Modern Physics, published on Zenodo under the DOI https://doi.org/10.5281/zenodo.20336180. The analysis confronts Cui’s theory of an electromagnetic substantial spacetime matrix with the Theory of Objectivity, especially its modal axioms, phenomenic elements, Inducer Effects, cosmogonic theorem, and cosmological Eras. The article argues that Cui’s proposal has a high degree of dialogue with the Theory of Objectivity because it reopens the ontological question of spacetime, the vacuum, mass, the Higgs phenomenon, quantum fluctuations, and cosmic origin. At the same time, the article identifies important points of tension. While Cui tends to interpret the electromagnetic-photonic matrix as the ultimate foundation of physical reality, the Theory of Objectivity maintains that the primordial foundation is Nothing as a Primitive and Eternal Mathematical Essence. Furthermore, the Theory of Objectivity understands the transcendent element as knowledge or information produced in atomic relations, equivalent to atomic radiations, whereas Cui’s framework tends to privilege an electromagnetic-material ontology. The article concludes that Cui’s proposal dialogues strongly with the Theory of Objectivity as a possible physical-substantial derivative hypothesis, but not as a replacement for its modal foundation. This analytical text counted on the analytical support of ChatGPT. Keywords: Theory of Objectivity; Vidamor Cabannas; Denivaldo Silva; Hugang Cui; Spacetime Substantivalism 31; electromagnetic; spacetime matrix; substantial spacetime; quantum vacuum; Higgs phenomenon; quantum fluctuations; modal ontology; cosmogony; atomic radiation; transcendent information; Inducer Effects; cosmological Eras.