I'm coming back to this one a bit later to "listen" to the two videos. I love TED talks though, and just to "interrupt" with "my" opinion here (yes, I DO feel guilty, but like I said, I'm coming back to really LISTEN) my favorite TED talk so far has been My Bolt of Insight by Jill Bolte Taylor - a brain scientist who suffered a stroke. Look, I know I'm doing what you advise not to do, but I swear I'm coming back. Like, within the hour, okay? LISTEN TO ME!!!