Khara, Alankar Sukhdev Singh: Complete Detectable Spacetime Geometry II: A Unified Variational Closure Principle for the spectral reconstruction of the Standard Model and Emergent Gravitational Sectors

_SSRN_. forthcomingThis work develops a unified variational formulation of Complete Detectable Spacetime Geometry (CDSG), extending prior results on admissible physical structure to a quantitative reconstruction of the Standard Model and its gravitational and cosmological extensions. The framework is based on the requirement that physically realizable processes correspond to closure-complete spacetime action histories together with detectability and consistency constraints that exclude irreducibl