Juan Viejo2 - "I doubt that anyone would even notice anymore -since most "public" talks cover the same 5 or 6 subjects almost verbatim from prepared outlines."
LOL! That reminds of a particular episode of that old Jim Henson sitcom Dinosaurs featuring a Robert Stack-like character who hosted an Unsolved Mysteries-type TV show; when Earl (the Dad) asked him about how they came up with such good shows, the host confessed that the show only had three or four actual mysteries and just replayed them in a cycle, and that nobody seemed to notice.