Who is John Galt? The rhetorical question, posed frequently throughout the early sections of Ayn Rand’s epic tome Atlas Shrugged, continues to crop up here and there to this day, usually as a bumper sticker on the back of a BMW: the economic libertarian’s counterpart to the Deadhead dancing bears. It’s a codeword, the inverse of 420. If you know the answer to the question, you’re in the club of laissez-faire capitalists and would-be prime movers.

If you’ve never read Ayn Rand — and if you’re older than 20, you probably shouldn’t bother — you may still wonder just who John Galt is. Quick summary: he’s the bold visionary savior of capitalism, the person who would let the old world die so he and his disciples can shape a new one in the image of the dollar sign. If that still doesn’t answer the question for you, well, take some solace in the fact that the question probably isn’t really worth answering in the first place.

I’ve been thinking about John Galt more lately than I have in about 18 years, since the second and last time I read Atlas Shrugged cover-to-cover. I’ll admit, it can be a page turner for most of its (excessive) length, at least until the portion near then end where John Galt himself takes over the world’s airwaves and launches into a dry, rambling 80-page soliloquy laying bare Ayn Rand’s philosophy. But people don’t read Ayn Rand because her writing is so great. It’s not. They read Ayn Rand because her ideas are radical and liberating to ambitious minds that feel trapped in a society of conformist mediocrity.

In other words, her ideas are just what 15-year-old, Rush-and-D&D-obsessed nerds need to feel better about themselves in a world that rejects them for being different. At least, that’s what I thought her ideas were until I got really obsessed with them in college, moving beyond her novels to her collected non-fiction essays, along with those written by her “egoist” acolytes, including Alan Greenspan.

Yes, that Alan Greenspan.

I was pretty surprised to learn that the (at the time) Fed chairman was an Ayn Rand devotee, and it convinced me (at the time) that some day soon we’d see Ayn Rand’s philosophy rise up and vanquish the mediocrity of our soul-sucking society.

But then I grew up. I realized that her writing fell firmly in the realm of fantasy. And it wasn’t just that the “second-handers” of society that she described did not correspond in any recognizable way to anyone in the real world. It was that the leaders in her world — not just the godlike John Galt but the creators, the captains of industry, like Dagny Taggart and Hank Rearden — didn’t have any real-world counterparts either. People, in most cases, do not rise to power and wealth purely through their noble industriousness and hard work, just as people do not struggle with poverty because they’re lazy. The world Ayn Rand creates has a tantalizingly simple internal logic. Unfortunately, her world is a miserably inadequate model of the complex, messy external reality she believed her “objectivism” so clearly observed.

Still, all of this would be an academic exercise for me to ponder in my parents’ basement were it not for the likes of Alan Greenspan, and so many who have come after him: Ron and Rand (Rand!) Paul, Glenn Beck and Rush Limbaugh and Sean Hannity, the Tea Party and anyone whose ability to follow a thought through to logical conclusion is so broken that they somehow manage to espouse both Ayn Rand’s (aggressively atheist) philosophy and fundamentalist Christianity simultaneously. Check your premises, etc. etc.

What frightens me is that in the two decades or so since I outgrew Ayn Rand myself, and especially since the 2010 midterm elections, we’ve come to a point where we have people who embrace Ayn Rand’s philosophy, however contradictory their overall views may be, in positions of government power in the United States. People who apparently know (and, for that matter, care) so little about the way our government actually functions, yet who believe so fully — so faithfully — in the economic principles described in books like The Fountainhead and, especially, Atlas Shrugged, that they would run the metaphorical ship aground on these shaky premises, believing that allowing the United States to default on its debts, allowing the economy to crumble, would actually be a good thing, and would give them the opportunity to remake our government, our economy, our society, in a way more in line with Ayn Rand’s ideas.

But Ayn Rand wasn’t even a good science fiction writer, much less a good economist, and far less an astute, objective observer of the fragile complexities of human character and American society. If we allow our economy to collapse, if we make it collapse because we think we can start over from scratch with a (non-existent) team of all-star CEOs drawing up the blueprints, we will quickly learn the answer to the question. There is no John Galt.

Update (November 16, 2011): John Galt is getting some more attention lately, as apparently Lululemon loves him.