I recently had a visit from a young insurance salesman who turned up with one of these PowerPoint devices.
All very slick marketing and a seemingly professional presentation of the plans he was endeavouring to sell. However, when faced with a couple of questions not anticipated and for which his "spiel machine" was not prepared, he rather fell to pieces and had to phone in for assistance.
I didn't buy his product, nor would I have selected him to teach me how to fly. Frankly, I would be inclined to be wary of someone needing the pseudo-sophistication of fancy software to explain things easily depicted on a blackboard. Could be flashy obfuscation designed to conceal a lack of proper understanding of the subject matter?
Perhaps once in a career, there is an occasion when one has to follow the advice, "forget the book, fly the aircraft". Where's yer PowerPoint then?
GQ.