Psychohistory and Paul Krugman

Jamie Hoffman emails:

 I recently began reading Isaac Asimov's Foundation trilogy.  Early on you are introduced to a discipline Asimov labeled psychohistory, http://en.wikipedia.org/wiki/Psychohistory_(fictional).

 I immediately thought that it sounded like really bad economics.  Lo and behold, here is a quote from a post by Paul Krugman, "Several commenters mentioned Issac Asimov’s Foundation novels. It’s somewhat embarrassing, but that’s how I got into economics: I wanted to be a psychohistorian when I grew up, and economics was as close as I could get." Here is the post from which the quote came from:

http://krugman.blogs.nytimes.com/2008/05/04/economic-science-fiction/?_php=true&_type=blogs&_r=0.

 Perhaps Krugman's work should be labeled science fiction?