mark zuckerbeg, i went to the famous session where he talked about how from advertisers he said we are going to give you the chance to put yourself in the conversation between the users, between friends. when i talk to my friends i don't want it in the conversation -- pepsi-cola in the conversation. >> i think you're right. it's going to be interesting to see how all of this plays out. there is one thing before i get to the question from the audience that does strike me about larry as he takes the helm he can be a little arrogant perhaps. you put it somewhat in the book from simon and schuster who called it the whole google book deal innocent arrogance, and the sense that i'm trying to do good, i am trying to digitize the world, this is good, and yet i wondered if that is going to get him into trouble, too. this omission to do good without also realizing that you are going to hit up against industries that are -- it's not necessarily -- people write books and they are valuable and as you said, speed isn't really -- the don't really get it, the people worked hard on books come in your b