Bryan Caplan didn't even write the article, Caplan just posted it. The article is by David Edwards, who is a mathematics professor. This is literally the first

Bryan Caplan didn't even write the article, Caplan just posted it. The article is by David Edwards, who is a mathematics professor. This is literally the first line of the posted link. EDIT: I would add that Caplan is a working researcher who has made significant and original contributions to economics, where Gladwell is a journalist who interprets the work of scholars like Caplan. If anything, Gladwell is a Caplan wannabe (although I wouldn't characterize either of them in that fashion, I think they have different goals and methods)