Primordial helium fraction from compact/free–electron freeze-out

Model. In Real Cosmology a neutron is a proton with a compact electron, so the cosmic neutron/proton ratio is the compact/free electron ratio at freeze-out: (n/p)f = exp(−E*/kTf), with E* the compactification energy gap (the model's T*) playing the role of the n–p mass difference (1.293 MeV in standard physics). Free neutrons (compact electrons) then partly expand back (β-decay) before nucleosynthesis, factor d, and essentially all surviving neutrons end in He-4: Y = 2(n/p)nuc / (1 + (n/p)nuc). Result: the defaults (E*≈1.3 MeV, T_f≈0.8 MeV ⇒ T*∼10¹⁰ K) give Y≈0.245 — the observed primordial helium — from the model's single MeV-scale handle. Honest note: T_f is, in standard BBN, derived from weak-rate vs. expansion (~0.8 MeV); here it is a second input, so the genuine prediction is the inequality E*/kT_f ≈ 1.6 with E*∼1.3 MeV.