I attended a lecture at a film festival in town this weekend and was reminded again how easy it is for experts to talk fluently about their subject without understanding the relevance of their material to their audience. The easy chatter, confidence and fluency of the presentation itself (done so many times before in the same way) becomes a substitute for a real conversation with the audience.
Saying it is supposed to be ‘educational’ is a cop out. Have an objective: drive what you are talking about by what you want people to do or think as a result.
As Steve Martin said to John Candy in Planes, Trains and Automobiles, “Have a point. It makes it so much more interesting for the listener!”