James Taranto, in his Wall Street Journal Best of the Web feature, says
The most intelligent thing Paul Krugman has ever written was a Jan. 28 entry, titled simply “Egypt,” on his New York Times blog:
I don’t know anything, have no expertise, haven’t even ever looked at the economic situation. Hence, no posting. If there comes a point when I have something to say, I will.
Taranto then mocks Krugman for shortly afterward making the ridiculous assertion that the situation in Egypt is due to global warming. (Global warming leads to higher food prices, which leads to riots. Using much of the world’s corn to make ethanol and debasing the value of the currency apparently don’t have any effects in Krugman-world.) He fails to note, however, the self-refuting character of Krugman’s remark. “Hence, no posting,” he posts.
No matter. It’s still probably the most intelligent thing he’s ever written as a political commentator.