Fluid nations?

Have any of you ever heard the term fluid nation bantied about? I was doing a little bit news catch up earlier this afternoon. After surfing through some daily news sites I went to the New Yorker site and came upon a silly article about the emerging discipline centered around the study of "fluid-nations", a term that, to my mind, seems relatively synonymous with "cultural group". That's really not a very good defnition; however, it will perhaps work as a definition if "cultural" is understood to mean shared experiences/beliefs. The author seems to agree (veiled sarcasm at the end) that the whole discipline is a bunch of huey, but nonetheless I am still curious.

Here's the web link if anyone's interested:document.write(myObject.popReferrer);http://www.newyorker.com/shouts/content/?030922sh_shouts