The Perils of Public Intellectualism

Paul Krugman on January 28, 2011 in a post titled "Egypt":

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.

Ten days later:

I’ve spent a lot of the last several days reading about climate change, extreme weather events, food prices, and so on.

You know the rest.

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