Notes. Abundances of light elements in standard and SIV-guided BBN. Observational uncertainties are 1.6% for Y_P, 1.2% for D/H, 18% for He/H, and 19% for Li/H. The first four columns list the results from the initial SIV study (2023) and the 2025 update. The next four columns give the best-fit values of Ω_b and λ, enforcing local thermodynamic equilibrium with n_T = n_m, for specific cases discussed in the text. The following two columns show the results for the SIV-motivated choice n_T = −1/2, n_m = 1, and for the corresponding fit over n_T with the constraint n_m = 3 + 4n_T. The λ = 1 case (analogous to Tsallis non-extensive statistics) illustrates the failure of standard time determination with λ = 1, while keeping the nuclear-reaction scaling factors Ť, mŤ, and Q/Ť from the fit₁ case. The next column presents the best fit over Ω_b, temperature, and mass scales encoded in Ť, mŤ, and Q/Ť, with λ = 1 and standard time determination. The last three columns explore the scenario with unaltered ℏ by fixing n_m = −1, while allowing n_T to vary away from −1/2, so that the scaling of Gρ comes only from G. The final column corresponds to n_ρ = −2.75 for Gρ scaling via λ^{1 − n_m + n_ρ}, unlike the previous cases where it was set to zero because ρ-scaling was induced by temperature rescaling.