Saturday, April 26, 2008

What elevators can teach us about superstition

Submitted by Massimo Pigliucci on 26 April 2008 - 9:23am

Maybe I’ve had elevators on my mind because the one in our building has gone through endless repairs of late, none of which apparently improved its speed or reliability. Or perhaps you simply cannot live in New York City without taking into account elevators as a major component of your life. But then my wife pointed out to me this snippet from an article published recently in The New Yorker (every self-respecting newyorker reads The New Yorker while in the subway):
“In the old system—board elevator, press button—you have an illusion of control; elevator manufacturers have sought to trick the passengers into thinking they’re driving the conveyance. In most elevators, at least in any built or installed since the early nineties, the door-close button doesn’t work. It is there mainly to make you think it works. (It does work if, say, a fireman needs to take control. But you need a key, and a fire, to do that.) Once you know this, it can be illuminating to watch people compulsively press the door-close button. That the door eventually closes reinforces their belief in the button’s power. It’s a little like prayer. Elevator design is rooted in deception—to disguise not only the bare fact of the box hanging by ropes but also the tethering of tenants to a system over which they have no command.”

Talk about fooling most of the people most of the time! Of course, superstition is actually a well-known phenomenon in the animal world. Experiments with rats have shown that if you give them a reward (say, food), shortly after they accidentally bumped their shoulder against a wall of their cage, they will start purposely bumping against the wall, expecting a new reward. This is no different from human beings associating a win by their favorite team to them wearing a “lucky” shirt or hat. Both are examples of a widespread logical fallacy, post hoc ergo propter hoc (after that, therefore because of that), where a causal link between two events is inferred on the basis of an observed correlation.

The difference between rats and humans is that the former give up their illogical behavior much sooner than the latter, if no further reward is coming. (Of course, what makes the elevator such a Machiavellian device is that the reward does keep coming!)

More generally, superstition (and therefore religious belief, which is a form of superstition) can likely be traced back to two factors, one of which seems to apply only to humans and perhaps other closely related primates.

The first factor is exemplified in the widespread use of observational correlations in the animal kingdom: it simply makes sense for natural selection to favor the ability to uncover potentially significant patterns in the environment, so that the organism can take advantage of them. However, one would also expect selection to favor the quick abandonment of pattern-based behavior if the pattern turns out not to be a reliable clue for action -- exactly what happens with rats.

Read the rest of the article and a lot more here.

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