Circles of Knowledge

In response to Rumsfeld's youtube video posted by George, I offer the above diagram. I first learned about this in high school from my sophomore English teacher, Mrs. Berry. She zealously drew this diagram on the board (sans the axes since they change for each person) and, to this day, describes it as mind-blowing. Perhaps instead of Koen’s conjecture that “to be human is to be an engineer” we should take on Bowker’s view and say “to be human is to categorize.”