Hey, at least it keeps them off the streets!

Regular commenter Xenophon shared the very elaborate new xkcd map of online communities. Good stuff. The blogosphere seems so small, but it features "libertarians" (none specifically identified), and Paul Krugman. However, I wanted to point out a small region that you might have missed - between the islands of Youtube and Twitter we have the "isle of teenagers who just discovered macroeconomics". I shit you not. Pretty cool! I'm not sure exactly what he's refering to, but I suppose there are worse things teenagers could do with their time.

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Some advice for these experimenting teens - (1.) don't confuse your accounting identities with behavioral laws, (2.) don't assume that two models describing two different macroeconomic phenomena necessarily amount to two contradictory understandings of the economy, and (3.) if anyone ever tells you to disaggregate your data when you're not comfortable with doing that, just say "no" - fallacies of composition will stay on your record (well... if you publish them at least).