Father of All Fears
Man will become better when you show him what he is like,” Chekhov wrote. Showing us what we’re like is Steven Pinker’s life project.
Most intellectuals today have a phobia of any explanation of the mind that invokes genetics. They're afraid of four things.
First there is a fear of inequality. The great appeal of the doctrine that the mind is a blank slate is the simple mathematical fact that zero equals zero. If we all start out blank, then no one can have more stuff written on his slate than anyone else. Whereas if we come into the world endowed with a rich set of mental faculties, they could work differently, or better or worse, in some people than in others. The fear is that this would open the door to discrimination, oppression, or eugenics, or even slavery and genocide.
Of course this is all a non sequitur. As many political writers have pointed out, commitment to political equality is not an empirical claim that people are clones. It's a moral claim that in certain spheres we judge people as individuals, and don't take into account the statistical average of the groups that they belong to. It's also a recognition that however much people might vary, they have certain things in common by virtue of their common human nature. No one likes to be humiliated or oppressed or enslaves or deprived. Political equality consists of recognizing, as the Constitution says, that people have certain inalienable rights, namely life, liberty, and the pursuit of happiness. Recognizing those rights is not the same thing as believing that people are indistinguishable in every respect.
The second fear is the fear of imperfectability. If people are innately saddled with certain sins and flaws, like selfishness, prejudice, sort-sightedness, and self-deception, then political reform would seem to be a waste of time. Why try to make the world a better place if people are rotten to the core and will just screw it up no matter what you do? Again, this is a faulty argument. We know that there can be social improvement because we know that there has been social improvement, such as the end of slavery, torture, blood feuds, despotism, and the ownership of women in Western democracies. Social change can take place, even with a fixed human nature, because the mind is a complex system of many parts. Even if we do have some motives that tempt us to do awful things, we have other motives that can counteract them. We can figure out ways to pit one human desire against another, and thereby improve our condition, in the same way we manipulate physical and biological laws—rather than denying they exist—to improve our physical condition. We combat disease, we keep out the weather, we grow more crops, and we can jigger with our social arrangements as well.
A good example is the invention of democratic government. As Madison argued, by instituting checks and balances in a political system, one person's ambition counteracts another's. It's not that we have bred or socialized a new human being who's free of ambition. We've just developed a system in which these ambitions are kept under control.
Another reason that human nature doesn't rule out social progress is that many features of human nature have free parameters. This has long been recognized in the case of language, where some languages use the mirror-image of the phrase order patterns found in English but otherwise work by the same logic. Our moral sense may also have a free parameter as well. People in all cultures have an ability to respect and sympathize with other people. The question is, with which other people? The default setting of our moral sense may be to sympathize only with members of our clan or village. Over the course of history, a knob or a slider has been adjusted so that a larger and larger portion of humanity is admitted into the circle of people whose interests we consider as comparable to our own. From the village or clan the moral circle has been expanded to the tribe, the nation, and most recently to all of humanity, as in the Universal Declaration of Human Rights. It's an idea that came from the philosopher Peter Singer in his book The Expanding Circle. It's an example of how we can enjoy social improvement and moral progress even if we are fitted with certain faculties, as long as those faculties can respond to inputs. In the case of the moral sense the relevant inputs may be a cosmopolitan awareness of history and the narratives of other peoples, which allow us to project ourselves into the experiences of people who might otherwise be treated as obstacles or enemies.
The third fear is a fear of determinism: that we will no longer be able to hold people responsible for their behavior because they can they can always blame it on their brain or their genes or their evolutionary history—the evolutionary-urge or killer-gene defense. The fear is misplaced for two reasons. One is that the silliest excuses for bad behavior have in fact invoked the environment, rather than biology, anyway—such as the abuse excuse that got the Menendez brothers off the hook in their first trial, the "black rage" defense that was used to try to exonerate the Long Island Railroad gunman, the "pornography made me to it" defense that some rapists have tried. If there's a threat to responsibility it doesn't come from biological determinism but from any determinism, including childhood upbringing, mass media, social conditioning, and so on.
But none of these should be taken seriously in the first place. Even if there are parts of the brain that compel people to do things for various reasons, there are other parts of the brain that respond to the legal and social contingencies that we call "holding someone responsible for their behavior." For example, if I rob a liquor store, I'll get thrown in jail, or if I cheat on my spouse my friends and relatives and neighbors will think that I'm a boorish cad and will refuse to have anything to do with me. By holding people responsible for their actions we are implementing contingencies that can affect parts of the brain and can lead people to inhibit what they would otherwise do. There's no reason that we should give up that lever on people's behavior—namely, the inhibition systems of the brain—just because we're coming to understand more about the temptation systems.
The final fear is the fear of nihilism. If it can be shown that all of our motives and values are products of the physiology of the brain, which in turn was shaped by the forces of evolution, then they would in some sense be shams, without objective reality. I wouldn't really be loving my child; all I would be doing is selfishly propagating my genes. Flowers and butterflies and works of art are not truly beautiful; my brain just evolved to give me a pleasant sensation when a certain pattern of light hits my retina. The fear is that biology will debunk all that we hold sacred.
This fear is based on a confusion between two very different ways to explain behavior. What biologists call a "proximate" explanation refers to what is meaningful to me given the brain that I have. An "ultimate" explanation refers to the evolutionary processes that gave me a brain with the ability to have those thoughts and feelings. Yes, evolution (the ultimate explanation for our minds) is a short-sighted selfish process in which genes are selected for their ability to maximize the number of copies of themselves. But that doesn't mean that we are selfish and short sighted, at least not all the time. There's nothing that prevents the selfish, amoral process of natural selection evolution from evolving a big-brained social organism with a complex moral sense. There's an old saying that people who appreciate legislation and sausages should not see them being made. That's a bit like human values—knowing how they were made can be misleading if you don't think carefully about the process. Selfish genes don't necessarily build a selfish organization.
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