This work presents a simple way to describe quantum, classical, and gravitational motion using one continuous equation, and shows how any external interaction can be added on the right‑hand side without changing the basic structure. This approach is based on the Thickness-Structure Hypothesis (TSH), which describes each object by how spread out it is and how its internal state changes. Using these two features, the behavior of an object falls into one of three structural phases: Stable (quantum) — where interference and wave-like behavior appear Composite (classical) — where motion follows clear and predictable paths Core (gravity / observation) — where motion becomes strongly shaped by gravity, similar to free fall These three phases are connected smoothly, so an object can shift from one type of behavior to another as its internal state changes. A simple action principle is used to describe motion in all three regions. From this, a single equation of motion is obtained that naturally produces quantum-like forces, classical motion, and gravitational free-fall paths depending on the internal state. The framework also includes a special “slot” that allows additional interactions—such as fields or matter—to be added without changing the basic structure of the equation. Near the boundaries between the three regions, the model predicts sharp switching behavior, such as the sudden appearance or disappearance of interference patterns or rapid contraction of a wave-like distribution. This short report summarizes the minimal structure behind TSH and shows how different types of physical behavior can be handled in one continuous picture.
ab_ab (Sat,) studied this question.