Dynamic Substrate Theory (DST): Conceptual Guide and Compendium Index

Abstract Modern theoretical physics has long relied on the abstraction of empty geometric spacetime, treating gravity as the curvature of a void. However, conceptual challenges regarding inertia, momentum transfer, and the microscopic origin of fields invite a paradigm shift. The Dynamic Substrate Theory (DST) proposes a return to a physical continuum by modeling the cosmic vacuum as a living, memory-endowed viscoelastic medium governed by Maxwell-Oldroyd-B rheology. In this framework, abstract geometric curvature is replaced by real physical stress, vorticity, strain, and relaxation dynamics within a universal substrate. This Conceptual Guide synthesizes the complete architectural compendium of the DST, bridging the gap from subatomic particle structures to the large-scale mechanics of the cosmos across twenty foundational registrations. Keywords: Dynamic Substrate Theory, Viscoelastic Vacuum, Maxwell-Oldroyd-B Rheology, Principle of Immanence, Continuum Mechanics.