"Unless you've felt it, unless you've cried over the fact that we really thought we were making the world a better place with the internet..." He pauses. "We 100 per cent believed that." Humanity, he says, is living through "two super old stories. One: be careful what you wish for, because you'll get it... And two: creators losing control of their creations."  He should know, because he is one of those Dr Frankensteins. As the son of Silicon Valley royalty (or at least nobility), he spent years merrily building technology that he believed was changing the world. It did, but not in the way that he hoped.