Standard Model Couplings with α⁻¹=137 ± 9 from Multiple Point Criticality and 3 Generations of Gauge Bosons: No GUT, No SUSY

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We consider the application of the Multiple Point Criticality Principle to the Standard Model and its extension to the anti-grand gauge group SMG³ ⊗ U(1)f at the Planck scale. In particular we discuss the predictions for the fine structure constants: α⁻¹(0) = 137 ± 9, α⁻¹₁(MZ) =99 ± 5, α⁻¹₂(MZ) =29 ± 6, α⁻¹₃(MZ) =12 ± 6. We also present our Standard Model predictions for the top quark and Higgs masses and a SMG³ ⊗ U(1)f fit of the quark-lepton masses and mixing angles. We characterise SMG³ ⊗ U(1)f as the largest possible extension of the Standard Model gauge group satisfying some relatively simple assumptions. The resolution of some other fine-tuning problems (Λcosmological, ΘQCD, MHiggs) by the multiple point requirement of degenerate vacua is briefly discussed.