This work establishes the foundational framework of a unified physical theory derived exclusively from a single, self-evident logical principle: the strict mutual exclusivity of being and non-being. From this sole meta-axiom, through an unbroken chain of rigorous logical and mathematical deduction, the fundamental architecture of our universe is systematically unfolded. We demonstrate that the very existence of a consistent physical reality necessitates a spatial medium that is three-dimensional, absolutely continuous, homogeneous, isotropic, and incompressible. Within this medium, only pure shear transverse waves are permissible—longitudinal compression is absolutely forbidden by the conservation of being. Further derivation reveals an intrinsic geometric limit to pure shear deformation, uniquely fixed at a critical angle of 45°. At this critical threshold, the smallest stable self-sustaining excitation of space itself emerges: the Axiomatic Wave Unit (AWU) —a complete wavelength cycle of critical shear propagation, whose amplitude is rigidly locked to its wavelength by the geometric constraint. From this single entity, the foundational constants and principles of modern physics emerge not as postulates, but as logical necessities: the constancy of the speed of light, energy quantization (E=hν), the origin of Planck's constant, and Lorentz invariance are all derived as intrinsic properties of the spatial medium. The theory makes a bold, falsifiable prediction: in superconducting microwave cavities at ultra-low excitation levels, the fixed intrinsic amplitude of individual AWUs will produce a measurable, power-independent frequency shift on the order of 10⁻¹²—a decisive departure from classical electrodynamics that awaits experimental arbitration. This document is the inaugural exposition of the Spatial Medium Theory. It lays the axiomatic and deductive groundwork from which subsequent works will derive the topological architecture of matter particles, the origin of gravitational interactions, and a unified ontological foundation for all physical law.
Lei Sun (Sun,) studied this question.