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THOUGHTS ON FREEDOM

Inconceivable Complexity

AUGUST 29, 2012 by DONALD BOUDREAUX

We’ve all seen old photos and film clips of people trying to fly like birds. Each of these aspiring aviators has wing-like things strapped to his arms. But no amount of flapping, however furious, ever gets him airborne like the birds he’s trying to imitate.

The man dressed in wings observes a flying bird and then analogizes his own limbs and muscle movements to what he supposes, from his observations, are those of the bird. But the human is misled into thinking that because he’s intelligent and has some body parts that are more or less analogous to a bird’s body parts, he can easily enough mimic the bird’s body and movements and thereby achieve flight.

Of course this man is deeply mistaken. Despite our smarts, we humans can observe only a tiny fraction of the details that enable birds to fly. We can with our naked eyes observe only the most obvious, large, “macro” details (“bird flaps limbs that extend from bird’s upper torso”; “bird’s flapping limbs are made of lightweight, flexible, overlapping things that we call ‘feathers’ ”). But the amount of detail that we don’t—that we cannot—observe through simple observation is overwhelming. The bird’s musculature; its cardiovascular system; the weight, positioning, and minuscule maneuverings of its tail—these and countless other relevant details aren’t observed.

We see only an animal extending itself horizontally, flapping its limbs, and then, voila!, it is safely and gracefully airborne!

Modern science and technology, of course, have taught us why we cannot simply strap on wings and fly like birds. We now understand just how numerous, and unobservable to the naked eye, are the details that enable birds to soar. The exact positioning and strength of a bird’s wing and tail muscles; the bird’s blood pressure; its sensory receptors that alert it to changes in wind direction—science reveals to us (some of) these myriad details and teaches us that they are indispensable to that bird’s ability to fly.

And science makes clear just how essential nearly all of these details are. Alter a detail here and the bird’s flight becomes less graceful; alter a detail there and the bird is no more able to fly than is a goat.

 

Awe and Admiration

The common reaction to scientific revelations of the enormous complexity of the flight of a seemingly simple sparrow is to admire nature’s handiwork. Such fine-tuned intricacies—yet all the creation of natural selection!

And our admiration properly prevents us from supposing that that our newfound scientific knowledge of birds gives us power to fly by flapping our wing-dressed arms. (To fly we rely on quite different principles, most commonly fixed-wing aviation.) Awe-struck by nature’s handiwork, we correctly realize that even some really smart Leonardo or Einstein could not possibly match, and much less outperform, “mindless” natural selection at creating a real flying bird.

Unfortunately, the same wisdom that guides our understanding of biology all too often abandons us when we contemplate the economy.

Attempts to centrally plan economies, or even to intervene in major ways into market economies, are very much like humans’ attempts to fly by dressing like birds and flapping fake wings: utterly futile, and potentially calamitous, because the most that can be observed of any successful economy are a handful of large details (assembly lines, retail outlets, money). Consciously calling into existence steel factories, wheat farms, supermarkets, currency, and other apparently obvious keys to economic success, and then trying to get these things all to work together to achieve economic takeoff, is akin to a man strapping sheets of fake feathers to his arms and legs and trying to fly. The effort simply won’t work, even if it appears to the untrained eye as if it should.

This reality isn’t altered by modern science.

 

Indescribable Complexity

A market economy is indescribably vast and complex—its success depends on so many intricate, changing details all somehow being made to work smoothly together that the “facts” that are essential to its thriving cannot be catalogued with anywhere near the completeness that can be achieved by a 21st-century scientist studying and cataloging the “facts” that enable sparrows to fly. A sparrow is complex compared, say, to a limestone rock. Compared to the modern market economy, however, a sparrow is extremely simple.

A surge in the supply of steel in Detroit for the month of October 2012—an uptick in consumer demand for a specific color of car and a downtick in demand for another color—the possibility of using a new financial instrument to spread investment risks more widely—unexpected difficulties in hiring workers who possess a certain set of skills—an innovation that lowers the costs of advertising—an electrical failure that threatens to shut down for several days a section of a factory—a trucking company that discovers it underestimated the fuel costs of delivering 1,000 new automobiles to dealerships throughout New England. . . . Dealing with details such as these—details that Hayek called “the particular circumstances of time and place”—is not incidental to the success of a modern economy; it is of the essence.

Awareness of these facts, and of knowledge of workable options of how to respond to them, are key to the growth and continued success of any market economy. These facts are dealt with successfully only in market economies and only to the extent that individuals on the spot are free to respond to these facts as they, individually, see fit.

Yet no observer or planner or regulator can see and catalog all these highly specific facts. The facts—each of which must be dealt with—are far too numerous at any moment for an observing scientist to catalog even if that moment were to be frozen for decades. Greatly intensifying this complexity is the reality that these facts are forever changing. A moment from now many of these facts will be different from what they are at this moment.

Nevertheless, too many people, including politicians, continue to believe that because they can observe a handful of bulky facts about the economy, they can thereby know enough to intervene into that economy in ways that will improve its operation. That belief, though, is hubris. It’s very much like believing that you’ll fly if you simply strap on a pair of wings and commence to flapping madly.

ASSOCIATED ISSUE

September 2012

ABOUT

DONALD BOUDREAUX

Donald Boudreaux is a professor of economics at George Mason University, a former FEE president, and the author of Hypocrites and Half-Wits.

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