Threshold Cosmology from COSMOS

We present a speculative but structured cosmological framework in which spacetime, anearly expansion-driving component, geometry-supporting order, dark-matter-like behavior,and visible matter arise as sequential differentiations of a deeper primordial condition. Theframework begins from COSMOS, the Cosmic Origin State of Matter, Order, and Spacetime,understood as a real but pre-geometric primordial substrate whose familiar sectors do notyet exist in differentiated form. The transition out of COSMOS is not treated as a singlecomplete split, but as a staged sequence. First, an early dark-energy-like expansion-drivingcomponent is released together with a still-coupled gravity-dark-matter sector. Later, thiscoupled sector differentiates into a geometry-supporting branch, a persistent dark-matterlikebranch, and a residual convertible pool from which visible matter becomes accessibleonly after cooling opens the appropriate thermodynamic and particle-physics windows.The framework combines a speculative primordial ontology with standard post-emergencecosmological relations wherever they are applicable. In particular, it uses a two-thresholdpartition structure, a thermal effective potential for a deep-sector order parameter, standardradiation thermodynamics, a visible-generation efficiency for late baryonic realization,and a minimal post-emergence effective action whose field content reproduces the releasedexpansion-driving mode, the second-threshold differentiation of the residual sector, and thedelayed accessibility of the visible sector. This yields a preliminary quantitative account ofwhy the late universe should naturally remain dominated by dark components rather thanvisible matter, while also allowing the smooth late dark-energy-like sector to be interpretedas the evolved descendant of the first released component. The result is not a completedmicroscopic theory, but a more unified cosmological scaffold linking primordial origin, stagedthreshold emergence, dark-sector differentiation, and the late appearance of visible matter.