Now, he doesn't control the media, but Donald Trump has been incredibly successful in having his face appear everywhere. You cannot go a day without seeing that face somewhere maybe 10 times.

One thing I'll say about Hitler that many people don't realize - and I don't mean to besmirch the industry - but he did get his start, not only as an artist, but as an advertising man writing art for advertisements.

There is this inherent human instinct that the usual way you control trolling is you force people to use their real identities. So there's less trolling on Facebook, for example.

We have just decided we have to have everything for free. And I think we're starting to pay for it in terms of our mental states.

I wish more of the web had stayed nonprofit. But the advertising model took over and I think has delivered us to where we are, along with the development of content, which is designed to do nothing else but make you click on it or share it. And I think it's kind of a low goal for content, and I think that's taken us to our current abyss.

If you have a weakness for furry slippers or something, you might end up with that kind of advertising. It's a very complicated algorithmic decision. There's no one dude who's deciding what ads are going with things, and it's very individualized also. And that's the idea of collecting information is that in theory, you're showing people things that they should want to see or for which they are a good target. So, no, there's no master person.

Facebook, when it began, like Google, was very resistant to advertising. They knew, like all - Mark Zuckerberg, like all good engineers, knew that advertising makes the product worse. But, you know, over time, they've been forced to increase the advertising load more and more and more. And the way they advertise is they - it's subtle but they know everything, you know, about everybody on the site.