A Mechanistic Model of Gravity Based on Particle Interaction with Voids within Matter

This paper presents an alternative approach to explaining the phenomenon of free fall, developed within a radical physicalist paradigm that prohibits the use of any entities not reducible to particles. The author deliberately rejects standard conceptual tools (potential, field, gradient, force, energy), considering them "puzzles" behind which no material substrate can be traced. A distinctive feature of the exposition is also the complete exclusion of the concept of "mass" from the line of reasoning. The aim of the work is to show that a consistent reduction of all explanations to particles opens up new possibilities for understanding gravitational interaction. The paper claims to revise the foundations of classical gravitational theory. This study represents the initial findings of an independent researcher, exploring a radical physicalist paradigm that prohibits.