First historian: "Let's talk about what happened." Next gen historian: "Let's talk about who talked about what happened." Third gen historian: "Let's talk abo

First historian: "Let's talk about what happened." Next gen historian: "Let's talk about who talked about what happened." Third gen historian: "Let's talk about how those who talked about talking about what's happened talked about it." It's like they're discovering recursion one generation at a time.