Exactly. Someone succeeded in making the most common use of PPP something for which it's logically inappropriate. Of course it can be an accident of history but it's still interesting.

If your goal is to understand the difference between median and mean, developing sensitivity for issues like that is the point. Even if it's all accidents of history, you want to have issues like that get your conscious attention when looking at statistics.

The fact that the CIA factbook happens to be the best source of knowledge and the CIA is an organisation that heavily inv... (read more)