He knows that; that's the joke.

I kind of suspected that but not sure plus most of the HN readers unlikely to know this somewhat obscure piece of information. Hence the comment.

Um, the rest of that paragraph is sarcastic, too, FYI...

Greenspan turned his back on Objectivism during the 70s.

He did? In what way? (Genuinely curious.)

My understanding is that, despite some of his views being at odds with her own, Rand was happy to have him in her inner circle anyway.

Before: http://www.lewrockwell.com/north/north204.html

After: Central banker

That's the gist of the argument. I'm not going to pretend to know where the line between Objectivism's general ideals and economic ideals lies.

He's always defended his involvement as being a necessary compromise. An unusual stance for an Objectivist, but an Objectivist nonetheless.

he expanded the money supply in 1995 and again in 2000 in order to create growth. Since you can't create growth out of thin air these bubbles eventually burst. This is blatant Keynesian economics, the opposite of the free-market.

Guess WWII never happened.

war is the broken window fallacy writ large.

Yes, I think that was intended to be part of the irony.