I wish I had written this.

It’s always impressive to see one person excel in two widely disparate activities: a first-rate mathematician who’s also a world class mountaineer, or a titan of industry who conducts symphony orchestras on the side. But sometimes I think Paul Krugman is out to top them all, by excelling in two activities that are not just disparate but diametrically opposed: economics (for which he was awarded a well-deserved Nobel Prize) and obliviousness to the lessons of economics (for which he’s been awarded a column at the New York Times).

It’s a dazzling performance. Time after time, Krugman leaves me wide-eyed with wonder at how much economics he has to forget to write those columns.

This is the work of Steven Landsburg, author of the Armchair Economist. Landsburg continues here.