The General Theory of Entirety (GTOE) defines Σ = č²(0)¹ as the foundational pre-geometric substrate, where distinguishability is minimal yet structurally stable. Its internal dynamics are governed by the NFB—UZ—PFB recursion engine, which generates oscillatory identity-instability, establishes the curvature-capacity field, and produces the pressure that compels the transition č² → X². This projection gives rise to spacetime, matter profiles, and curvature without requiring an initial singularity, thereby resolving the "something-from-nothing" problem through structural necessity rather than creation. Although the theory is pre-geometric at its source, it yields empirically testable geometric consequences within the X² layer, including curvature attenuation patterns, horizon constraints, and specific early-universe behaviors. GTOE therefore reframes cosmology, ontology, and measurement as convergent expressions of a single recursive substrate.