Why do you have a woman, professor Diane Purksiss, who sounds like she is doing a sensual/porn narrative, in this, otherwise, interesting presentation? Seriously, is she moonlighting in a porn sound/phone sensual job? If not, she needs to change her voice style before I can take her seriously; i.e. she needs to make her speech sound like the voice of a normal (professional) person and not of one who is, or is pretending to be, in heat.