The cosmic microwave background (CMB) is the afterglow of the early universe, emitted 380,000 years after the Big Bang when the universe cooled enough for atoms to form and photons to travel freely. Its temperature fluctuations encode the spectrum of initial conditions set in the first moments after the Big Bang. Two numbers characterize that spectrum: the spectral tilt and the tensor-to-scalar ratio. This tutorial explains how the GTE (Generative Triple Evolution) framework derives both of these observables without free parameters, and how it explains the baryon asymmetry and the CMB power spectrum without invoking an inflation field. The tilt arises from a running rate in the GTE Z2 sublayer — not from a slow-rolling inflaton.
Nova Spivack (Sat,) studied this question.