Advertising always corrupts the goal of the search engine, which is to try to give you the most important stuff, not the stuff someone paid there to be there.

Socialization would be the most successful thing to bring mainstream audiences to online computers.

I think, year in, year out, Google is starting to get worse instead of better. I think this is happening to a lot of the web companies, is as their demand to increase the payload they deliver in ads increases, they end up degrading and corrupting their own services. And you can see it with Google Maps, you can see it with Google Directions, where somehow Uber is, you know, always one of the options. And it's becoming exactly what they said was what they never wanted, which is a pay-for service where the highest bidder gets the best results.

You have to think back to the '90s. The computer was this terrible-looking thing that was trying to compete with the television. And it was this idea of email and chat rooms and this kind of stuff that first people - got people there.

In fact, the big steps forward for advertising, especially after World War I were when government just began employing the tools of advertising for its own purposes to get people to join the army and other things.

I think you spend 50 percent of your mental energy trying to defeat ad systems.

Google - and some of the other sites, YouTube and, you know - Google has an amazing search engine. The map product is incredible. So there's a sort of exchange when you put up with a bunch of ads. Facebook basically gives you access to your friends who, in theory, you had access to already. So sometimes I don't really understand the deal, but I guess it makes it slightly easier. So that's their contribution.