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.

There's always going to be merchants who need to get their message out, but things have gone way too far.

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.

When you decide to like something, I mean, you may feel you're sort of innocently putting out your preferences, but actually you're delivering something of enormous value, which is indicating that, you know, you'd essentially like to be advertised to by this company.

Advertising just keeps getting heavier and heavier and heavier. It doesn't have any natural limit, and we haven't found the place for the limit. And I think it's really important, therefore, that some of the revolts that are undergoing right now, you know, whether it's ad blockers or other things, are people trying to set some lines so that we say, you know, this far but no further. And this is where it ends.

You know, it's so funny that the internet's become a series of traps where you do sort of innocent things like give your name or address or indicate a preference, I like this thing, and then therefore you open yourself up to a deluge of advertising based on those stated preferences.

There's always going to be a tradeoff between trolling and anonymity, and I guess that's the way life will be. And you can manage it, but you can't cure it.