The Standard Cosmology as Theorem of GG‑Theory

Abstract

For forty years the standard model of cosmology, ΛCDM, has described the universe with breathtaking precision and explained almost none of it: a handful of numbers, read off the sky, reproduce everything, yet the theory cannot say why those numbers take the values they do.

This paper argues that they are not free. The same six-dimensional geometry that fixes the elementary particles, with three declared inputs and no dial adjusted to what it predicts, also forces the present-epoch shape of the cosmos: the matter fraction 1/π, the dark-energy fraction 1-1/π, the ordinary-matter fraction 1/(2π²), and the geometry's switch at the epoch of the first atoms at redshift e⁷, the exponential of a single whole number. Inflation, today's acceleration (w=-1), and a dark-matter particle near 8.1 μeV, the Kaxion, follow from the same shape, with the tilt and tensor ratio computed rather than fitted (n_s = 0.963, r = 0.004).

The two great puzzles of present-day cosmology appear in a new light: the Hubble tension as one derived expansion rate with the distance ladder as the outlier the geometry predicts, and the early, massive galaxies seen by JWST read structurally. As in its companion on particle physics, the paper states plainly which numbers are fully derived, which rest on a single named step, and which remain open, tuning nothing after the fact. If the argument holds, the cosmic inventory stops being a list of accidents: its form is forced, the 10¹20 vacuum fine-tuning dissolves, and what remains is one number read from the sky, when we look.