Interface Compatibility in Space-Phase: A Physical Principle for Resonance, Matter Formation, and Weakly Interacting Particles

Many natural phenomena exhibit an important distinction between propagation through a
medium and joining with structures already present within that medium. Liquid water
droplets merge almost instantly because their internal organizations are compatible,
whereas ice must first lose its crystalline organization before joining surrounding liquid
water. This familiar observation suggests a broader physical principle that may also apply
within the Space-Phase (SP3) model. In SP3, all matter and energy comprise differently
conditioned organizations of a universal space-phase mesh. Propagation requires only that
the mesh support transport, whereas stable joining requires compatible space-phase
organization across the interface between two systems. This paper proposes Interface
Compatibility as a general organizing principle capable of explaining resonant atomic
transitions, electron standing waves, stable particle formation, and the extremely weak
interaction of anti-neutrinos with ordinary matter.