More than anyone else, Adolf Hitler completely understood the union between government propaganda and between - and advertising, that they were in some ways the same thing.

I do think the best thing for companies like Google and Facebook, if they are afraid of this ethical trap of advertising, is they should start letting people pay who want to pay and avoid some of the advertising.

I want to say, however, one thing our media in America has done which didn't happen in other totalitarian states is it has very effectively stood up to Donald Trump who has obvious fascist tendencies and his - who's a temptation like all authoritarian figures to try to crush the media or make it obey him. As that - the media has, in fact, stood up to him and has refused to bow out or cower.

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.

Hitler had this understanding that you speak to people's deepest, darkest emotions and give them voice that can be incredibly effective.

I think Google is the most successful attention merchant - profitable attention merchant in the history of the world, most successful advertising-only based company - most profitable. They started a very idealistic, beautiful company in many ways, but they didn't have a business model.

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.