Read The Folly of Fools Online
Authors: Robert Trivers
Sometimes the teaching against self-deception is only a metaphor. In the twenty-seventh psalm (vs 8), David says, “When Thou said, seek ye my face, my heart said unto Thee, Thy face, Lord, will I seek.” It is hard to imagine looking God straight in the face and lying—to God or to oneself.
For a parallel in Islam, there is an important distinction in Sufi thinking between the jihad (struggle) against the outside world, called the small jihad, and the jihad against oneself, called the greater jihad. The small jihad is relatively simple: one struggles in group activities against an out-group in order to convert them. In the extreme case, either they are killed or you are, at which point you ascend to heaven. No great problem. But the struggle against oneself is far more difficult, and to reach God’s light, one must succeed in controlling one’s own body. This is a personal struggle that requires controlling your bodily desires (for money, pleasure, satisfaction) in order to purify your soul. These desires occlude self-knowledge, in our system of logic, by encouraging self-deception. In the Sufi system, you must enslave your desires or they will enslave you. And finally, controlling the self is also a useful tool for controlling the outside world. The Greek sage Thales once put the general matter succinctly. “Oh master,” he was asked, “what is the most difficult thing to do?” “To know thyself,” he replied. “And the easiest?” “To give advice to others.” Various Eastern religions also sometimes urge rather extreme systems of physical self-denial to free the individual from its egocentric center.
INTERCESSORY PRAYER—DOES IT WORK?
A bizarre belief widespread in many Christian circles is that of the power of intercessory prayer. That is, many people seem to believe that a group of people in a room, scrunching up their foreheads in intense concentration on behalf of someone miles away about to undergo surgery, can have a positive effect on the outcome. Were this to be true, the laws of physics would have to be violated on a daily, even minutely basis, by a deity who chooses to alter reality in response to the pleas of petitioners according to some unknown criterion—a most unlikely structure to the real world. The matter has been put to a test a number of times but often with poorly controlled studies and small sample sizes, precisely the conditions expected to produce a conflicting array of positive and negative findings, feeding the illusion that something may actually be going on.
Then came a multimillion-dollar study, carefully organized with six hospitals in which groups prayed for given patients from the day before they entered surgery until two weeks later, while another group of patients received no such prayer. Meanwhile, some of those being prayed for were told that they were being prayed for and others were not. Patients were followed for a month after surgery. The results were unambiguous: no effect whatsoever of intercessory prayer on the outcome, no hint of a benefit. So our first question is answered: it has no direct effect.
But does it have a placebo effect? Does belief in the efficacy of intercessory prayer by the victim give any kind of efficacious benefit? Quite the contrary. Those told they were prayed for had
more
postoperative complications of every sort than did those who did not know they were being prayed for. One hypothesis is that when told people are praying for you, you interpret your situation as being more dire than it really is, with associated stress. The patients are not being offered anything more than a useless prayer: no talk of cleaning the apartment or keeping their dog alive, no investment in their future, nothing—just the claim of people in intense wishful thinking on their behalf.
Note that the truly devout have no problem with these new scientific results—God responds to these experiments by simply withholding the usual benefits of intercessory prayer the better to keep scientists (and unbelievers more generally) in the dark. Did not Jesus say, “I will reveal unto babes what I will keep hidden from the wise”?
RELIGION AND SUPPORT FOR SUICIDE ATTACKS
There has been an exponential increase in suicide attacks worldwide, at least as measured over the past twenty years. This is a device by which a member of one group sacrifices his or her life to inflict damage (death and otherwise) to numerous or highly important members of another group. There is no question that this behavior could in principle be an effective political (and reproductive) strategy with return benefits to the martyr’s much larger kin group, but there is also no doubt that such behavior easily induces massive return spite. In any case, suicide bombing can serve as a sensitive measure of the degree of willingness to commit violence against an out-group at great personal cost.
It is of some interest to know the role of religion in all this—pro, con, or otherwise. Recent work has provided a most interesting answer. When measured one way, religious activity makes the participation in (and support of) suicide bombings more likely. When measured another way, religion has no effect. What is the difference? Religion has an external, social aspect and an internal, contemplative one. Across a variety of suicidal conditions (Palestinian surveys, a hostile prime for Israeli settlers), religious attendance (the social aspect) is positively correlated with support for suicide bombings, but prayer (the contemplative) is not. This holds for study after study. In a summary of six religions in as many countries, regular attendance at religious services predicted both out-group hostility and in some cases willingness to be a suicide martyr— but prayer did not. The Sufi outer jihad is run by social interactions, the greater inner jihad by achieving independence through prayer. This is, I think, the double face of religion—outward, hostile, and egocentric; internal, contemplative, and anti-egoistic.
RELIGION → SELF-RIGHTEOUSNESS → WARFARE
Religions tend to contribute to war in several ways. They encourage an in-group mentality, backed up by a breeding system that increases within-group relatedness (while decreasing between-group relatedness) and they readily provide the shared self-deceptions on which to base group action. But there is one final gift of many religions: self-righteousness. Murder is not only not prohibited (as it is within the group), but it is also sometimes required. It is your moral duty to kill the infidel, the unbeliever, the other. You are doing the Lord’s work—not just your own or that of your group. You are fulfilling more than your manifest destiny—you are the Lord’s executioner. You are helping natural selection along its ordained path. The Bible, as it turns out, warns against this path: “Vengeance is mine,” saith the Lord.
CHAPTER 13
Self-Deception and the Structure of the Social Sciences
T
here is structure to our knowledge. Take science, for example, with its various subdisciplines of mathematics, physics, chemistry, biology, psychology, and others. Or history and philosophy and philology. Or literature, biography, and poetry. How do processes of self-deception affect the structure of knowledge? We have already addressed history; here I wish to focus on social biology and the social sciences, economics, cultural anthropology, and psychology. If we believe, as we have seen over and over, that self-deception deforms human cognitive function among individuals, airline pilots, governmental agencies, war planners, and so on, how can we not imagine that our very systems of knowledge are not likewise systematically deformed?
Of course, I can pretend no overview of this immense subject—all of knowledge itself—but several points strike me as important. First, we expect knowledge to be more deformed, the more deformation is advantageous to those in control. If you are trying to land a missile more accurately or transmit knowledge more quickly, you will be drawn to science itself, which is based on a series of increasingly sophisticated and remorseless anti-deceit and anti-self-deception mechanisms. It seems likely that the enormous success of science in part reflects this feature. Second, it seems manifest that the greater the social content of a discipline, especially human, the greater will be the biases due to self-deception and the greater the retardation of the field compared with less social disciplines. It may be that the intrinsic complexity of social phenomena impedes rapid scientific progress, but modern physics is very complex, and its findings were unearthed by procedures relatively unimpeded by self-deception. The study of history seems to be a conflict between a few honest historians trying to gain a true picture of the past and the greater number, who are primarily interested in promoting an uplifting view of the group past—in short, a false historical narrative.
Another possibility regarding the development of social disciplines is that a prior moral stance regarding a subject may influence the development of theory and knowledge in that subject—so that, in a sense, justice may precede truth (and false justice, untruth). Let us begin with this topic.
PRECEDENCE OF JUSTICE OVER TRUTH?
The usual assumption within academia is that we will derive a theory of justice from our larger theory of the truth. But what if our prior stance regarding justice impedes our search for the truth? For example, an unconscious bias toward an unjust stance will invite cognitive biases in favor of this stance. The “truth” that one produces on the justice of a situation will have been distorted by the prior commitment to an unjust position. In short, injustice invites self-deception, unconsciousness, and inability to perceive reality, while justice has the opposite effect. This can be a very pervasive effect in life. That is, we can construct social theory—at the microlevel, marriage, family, job; at the macrolevel, society, war, etc.—and think we are pursuing the truth objectively, but we may only be fleshing out our biases. This suggests that an early attachment to fairness or justice may be a lifelong aid in discerning the truth regarding social reality. Of course, if your attachment is to pseudo-justice, one may have exactly the opposite effects. It is possible to use an alleged attachment to justice defensively—for example, to prohibit outside knowledge from entering your discipline—which may lead you far from truth, as we shall see for cultural anthropology. Behavior may cause belief, as I have been arguing, but that still leaves open the question of what causes the behavior in the first place, that is, the just or unjust stance.
SUCCESS OF SCIENCE IS BASED ON ANTI-SELF-DECEPTION DEVICES
The success of science appears in great part to be due to a series of built-in devices that guard against deceit and self-deception at every turn. First, everything is supposed to be explicit. Famous mathematical proofs (Godel’s theorem) begin with a set of all the symbols used and what they mean. By contrast, in the social sciences, entire subdisciplines may flourish in the interstices of poorly defined words.
Scientific
work is supposed to be described explicitly in detail, with terms and methods defined to permit the work to be repeated exactly in its entirety by anyone else. This is the key guard against untruth: repeating work to see whether the same results emerge. Think of the number of tantalizing hoaxes that are dismissed because they can’t pass this first hurdle—for example, achieving atomic energy via cold fusion. Of course, full-time hoaxes, such as psychoanalysis, preclude experimental tests at the outset (in favor of such bedrock data as clinical lore). The requirement for exact description permitting exact repetition applies not just to experimental work but also to any way of gathering data that reveals patterns of interest.
Experiments are conducted under controlled conditions—that is, with certain key variables held constant and/or varied in a logical and systematic manner. The results are then subjected to a statistical apparatus that has grown very sophisticated in the past one hundred years. Very complex sets of data can now be rigorously searched for information regarded as statistically significant. By convention, data that can be generated by chance more than 5 percent of the time are rejected as unreliable. For important results, such as medical findings, we prefer an error rate of 1 percent or less. Finally, meta-analyses can be performed on large numbers of related studies to see what statistically valid generalizations can be made across the full range of evidence. Every single one of these advances tends to minimize the opportunities for deceit and self-deception. They also permit us to rank information by degree of reliability (statistical significance) and effect size (weak or strong).
The acid test of science is its ability to predict the future, in particular, hitherto unknown facts. Yes, light really is bent by gravity (per Einstein); in an eclipse of the sun, the apparent position of stars in the nearby background was altered by the sun’s gravity. The same principle operates on much more humble work. That ants produce a 1:3 ratio of investment in the sexes (unlike almost all other animals) was first predicted on kinship grounds alone (the female ants producing the ratio are three times as related to their sisters as to their brothers, unlike almost all other species) and has been confirmed by detailed evidence from dozens of scientific studies. Of course, scientists will pretend that “predictions” lack any foreknowledge, when in fact they are “post-dictions.” This is the beauty of Einstein’s prediction compared to that concerning ants: How on earth could Einstein have had advance information about the apparent positions of stars during a solar eclipse more than ten years into the future? By contrast, one can easily bone up on ant sex ratios before launching one’s prediction.