This time, it’s social scientism:
Let me be clear, however: in pointing out the familiarity of the various societies we see in Foundation, I’m not being critical. On the contrary, this familiarity, the way Asimov’s invented societies recapitulate historical models, goes right along with his underlying conceit: the possibility of a rigorous, mathematical social science that understands society, can predict how it changes, and can be used to shape those changes.
When I was a teenager, I thought the idea behind The Foundation Trilogy was pretty neat, too. But I grew out of it.
Krugman then goes on to make some rather bold claims for the state of economics even now, bold for someone who can’t even get this right: