If you read the interview, Bill Gates rightly predicted the rise of sophisticated networks of trust, content raters and algorithms that would tell you what is worth reading and what isn't. It's no one's fault that no one listens to those recommendations--it's just human nature to be predisposed to confirmation bias.

But Pratchett's claim--that all information would have the same veneer of authority on equal terms--is patently false today. Everyone knows how to filter for content they should believe and content they shouldn't. The only problem is, everyone's opinion of what is 'fake' is different.