A good history teacher takes away your innocence about information.
Google is in a never-ending cat-and-mouse game with the people who try to game it. So that’s a piece of knowledge that’s important for people using the internet to fact-check or to think about the quality of information.
Fact-checkers know that in a digital medium, the web is a web. It’s not just a metaphor. You understand a particular node by its relationship in a web. So the smartest thing to do is to consult the web to understand any particular node. That is very different from reading Thucydides, where you look at internal criticism and consistency because there really isn’t a documentary record beyond Thucydides.