I remember reading the same blog post and here is what I remember: He told an anecdote told to him by someone else, wrote multiple times that he finds it ridic

I remember reading the same blog post and here is what I remember: He told an anecdote told to him by someone else, wrote multiple times that he finds it ridiculous and pointed out that it is most likely a funny coincidence. Sorry but my sympathy is with Krugman on this one - he didn't use his academic credentials as an argument on authority. It is a just a bit of brainstorming on his blog. If anything it makes me think more highly of him - being always serious is harmful, a creative mind must dare to be silly from time to time.