And cues commonly discussed in dating scenarios the arm cross, extreme appearance (from dark lipliner to unisex clothing) or oversharing personal information can be as harmful to your life professionallyas it can personally.
Competing professionally with an obsolete or even ordinary system is as ill-advised as playing professional basketball in the canvas shoes that were popular in the 1950s and 1960s, or competing in the PGA golf championship with wooden drivers.