Sir Tim made it clear fairly early in his talk that he did not want to spend too much time looking back. He mentioned that one of the risks of a celebration of this sort - a 20 year anniversary or birthday - is that of focusing on what was already done and seeing it as simply the past. He rejected that idea and said that he expects "even more boat rocking" to come, especially as we "get all the data on the Web." He predicted that there will be "new waves of things we've never imagined" and insisted that there is a lot to do.