Quantum Cosmic Evolution 3.0 An Empirically Calibrated Framework for Entropic Selection in Cosmology

QCE 3.0 (Quantum Cosmic Evolution) presents an updated stochastic formulation of an entropic–coherence cosmology that reproduces early-universe observables without invoking an explicit inflaton field. The framework unifies entropic drift, stochastic restoration, and self-selection of viable attractors, producing inflation-free expansion consistent with Planck PR4 (2024–2025) constraints. Monte Carlo calibrations over $(b,R,\sigma_\phi)$ parameter grids yield scalar spectral indices $n_s=0.963!\pm!0.003$, non-Gaussianity amplitudes $f_{NL}=0.28!\pm!0.09$, and low-ℓ $\chi^2<1.5$, in agreement with current CMB data. The adaptive entropy field $g(z)$ dynamically regulates expansion, mitigating $H_0$ and $S_8$ tensions by up to 7 %. A reproducibility snippet in Python is provided for numerical validation. QCE 3.0 introduces the concept of evolutionary cosmologies, where stochastic self-organization replaces fine-tuned initial conditions, paving the way toward data-driven, non-inflationary models of the early Universe.