I'm equally concerned that you think that knowing the answer to that question constitutes anything more than trivia that's even less useful than knowing cartoon characters. Utterly useless even to the knighted who already have what they came for.
I think the point was that people think they know the answer when actually they don't. Not knowing something isn't a problem, you can just look it up if you need it. Not knowing something but thinking you do is a serious problem because you never think to look it up.