STT — The Relation Between Matter, Spacetime, and Time

In modern physics, gravity is described as a geometric effect of spacetime curvature, while matter appears both as the source of that curvature and as the entity that dynamically responds to it. Although this formulation is mathematically consistent and empirically successful, it preserves a silent ontological asymmetry: geometry is treated as plastic and deformable, whereas matter remains structurally rigid, never identified with the curvature it is said to generate. This article investigates that asymmetry at an ontological level prior to physical dynamics. We introduce the Selector-Time Theory (STT) as a framework in which selection precedes evolution, stabilization precedes geometry, and coherence precedes metric structure. Within this view, spacetime is not a fundamental entity but an emergent descriptive language of post-time, applicable only after ontological stabilization within the Time-Container. Matter is reinterpreted as ontologically solidified coherence—the irreversible outcome of a selective process in which structural alternatives have been exhausted. From this distinction, we argue that geometric curvature, as described by General Relativity, is not the ultimate cause of gravitation but its descriptive shadow: a late metric registration of ontological asymmetries already fixed. Matter does not curve geometry because it no longer belongs to the domain of the curvable; it is the curvature that remained. Gravity, in this framework, does not act as a force nor as an active geometry, but as a persistent structural presence—the ontological signature of stabilization that occurred within the Time-Container.