The stupidest demo mistake people make [Jason Calacanis]

After rehearsing onstage demos with fifty companies last week, TechCrunch50 conference organizer Jason Calacanis listed eight rules for giving a good demo in a message sent to his public mailing list. What's the worst thing that presenters do deliberately? If you've ever been to a conference, you'll recognize it. Many presenters believe in repeating their message three times for the audience:...