@Jonas, I understand. And giving a talk is a nervous thing. So, as I said, I gave no talk in San Diego and made no promises ahead of time, although I made sure to inform the one guy who might have been, um, taken aback by seeing me there. And, as you may have observed, the most important interactions are between talks, during lunch, and so on. Well, giving a talk is worth something, it shows people you want to let them in on your stuff without undue effort.