2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/188406It is shown that in a model in which up-type and down-type fermions acquire mass from different Higgs doublets, the anthropic tuning of the Higgs mass parameters can explain the fact that the observed masses of the $d$ and $u$ quarks are nearly the same with $d$ slightly heavier. If Yukawa couplings are assumed not to "scan" (vary among domains), this would also help explain why the t quark is much heavier than the b quark. It is also pointed out that the existence of dark matter invalidates some earlier anthropic arguments against the viability of domains where the Standard Model Higgs has positive $μ^2$, but makes other even stronger arguments possible.31 pages, 7 figuresHigh Energy Physics - Phenomenologytext