This paper proposes *Spatial Geometrodynamics*——a unified physical framework built upon a discrete spacetime foam network. The theory proceeds from five foundational axioms: spatial substantiality, bounded closure, intrinsic expansion, boundary merging, and dimensional reduction through emergence. Within this framework, all fundamental physical entities and dynamical laws emerge naturally from the geometric and topological properties of a three-dimensional cellular network. Time is rigorously defined as the evolution of the total area of all shared interfaces in the universe; gravitation arises from interfacial tension effects; mass manifests as topological congestion of energy flux at vertices; and charge quantization as well as fractional quark charges correspond directly to the geometric rigidity constraints of Plateau's laws——"three faces meet along an edge, four edges meet at a vertex." Furthermore, quantum uncertainty is interpreted as topological undecidability of observational pathways. The theory further derives the geometric origin of gauge symmetries, the mechanism of cosmic inflation, and the thermodynamic features of black holes, and proposes eight phenomenologically testable predictions.
Jian Xiao (Thu,) studied this question.