I hadn't seen that before. Having just read through the wikipedia article, I'd say that my post is less about the theoretical categories themselves and more abo

I hadn't seen that before. Having just read through the wikipedia article, I'd say that my post is less about the theoretical categories themselves and more about people's inability to distinguish how their own knowledge is divided between those categories in their own minds, versus how it's divided in others. But yes, that's extremely relevant and awesome, thanks for that!