He did mention that the sexual selection for breasts is low or nonexistent . Traits that aren ' t detrimental nor beneficial for fitness can have greater variability . Since there ' s no selection towards an extreme phenotype , nor towards an average , the bell curve will widen to include extremes more often . Add into that the fact that breast size is pleiotropic like height , which is fairly varied , but has a degree of selection influencing it , and the fact that most women are not even wearing the correct bra size you ' d have to have a more accurate way of measuring mass or volume of breast tissue , you can end up with large discrepancies . Hopefully that made some sense . <| sep |> That seems like advice that would work better when you actually know the person . Besides , without irony my comments would just be lecturing . The Altright who flood this sub have a curious way of making it ' s not what you said it ' s the way you said it criticisms , usually in the same breath as lefty feels over reals .