A Unified Framework for Spacetime, Dark Sectors, and Visible Matter

We present a speculative but structured cosmological framework in which visible matteris not assumed to be the primary substance of the universe, but rather a later byproductof a deeper cosmological evolution. The proposed sequence begins with a primordialundifferentiated state, followed by the emergence of spacetime, the differentiation of darkenergy, dark matter, and geometric gravity as effective modes of a deeper sector, and finallythe appearance of visible matter through cooling-driven transitions. The framework is organizedaround core postulates, energy-density bookkeeping, entropy-based interpretation,and a temperature-ordered epoch structure extending from the earliest physically meaningfulstages through the standard cosmological checkpoints. The mathematical discussionremains deliberately conservative: where established physics applies, we use standard thermodynamicand cosmological relations; where the framework becomes speculative, we statethis explicitly and use only schematic parametrizations. The paper is intended as a programmaticfoundation for later refinement rather than a completed dynamical theory.