From Stars to Cosmology Under the Fractal Density Activation Axiom: A Compositional Ontology for Stellar Ontogeny, Black Holes, and Dimensionless Parameters

I develop a unified, falsifiable framework for stellar physics and late.early.universe cosmology based on the Fractal Density Activation Axiom (FDAA) and the Axiom of Composition. In this ontology, operational existence is a threshold event: a multi-scale density functional D(x) crosses a universal activation constant , and stable forms are fixed points in a lattice of compositional transforms. Dimensionful scales collapse to the single primitive (with induced resolution ), while the dimensionless sector is governed by triadic weights w 2 2 that encode spin-2 (gravitational), spin-1 (electromagnetic), and spin-0 (kinetic/inertial) threads at a temporal fractal dimension Dt ' 0:81.