TED Talks are only interesting if they surprise you. If somebody gets up there, no matter how emotional they may be... If they only tell you stuff you already know, or especially if they only tell you their own life story, to me, it's just not interesting. You don't remember those. The ones you remember are the ones that make you go, 'Huh, that's weird. That's completely opposite of what I would have thought. That upends my expectations on this thing.'