In one of F. Scott Fitzerald\u2019s funniest short stories, \u201cHead and Shoulders,\u201d a certifiable genius falls in love with a showgirl. The plot and moral of the story aren\u2019t relevant for today\u2019s email\u2014though the story is highly recommended\u2014instead there is a little passage in it that introduces a concept that is worth thinking about:\u2709\ufe0f Sign up for the Daily Dad email: DailyDad.com\U0001f4f1 Follow Daily Dad: Twitter, Instagram, Facebook, YouTube