Quotes & Commentary #73: Keynes

Quotes & Commentary #73: Keynes

It is a great fault of symbolic pseudo-mathematical methods of formalizing a system of economic analysis . . . that they expressly assume strict independence between the factors involved and lose all their cogency and authority if this hypothesis is disallowed.

—John Maynard Keynes

I ended my last commentary by swearing to leave off thinking about the coronavirus. Alas, I am weak. The situation is bleak and depressing; it has affected nearly every aspect of my life, from my free-time to my work, my exercise routines and my relationships; but it is also, if one can be excused for saying so, quite morbidly absorbing.

What especially occupies me is how those in charge will weigh the costs and benefits of their policies. Because the threat posed by coronavirus is so novel, because these decisions involve human life, and because it is difficult not to feel afraid, I think there is a certain moral repugnance that many feel toward this kind of thinking. However, as I argued in my previous post, I think truly moral action will require a thorough appraisal of all of the many potential consequences of action and inaction. This will make any choice that much more difficult, and I do not envy those who will have to make it. 

As anyone familiar with the famous trolley problem knows, moral dilemmas often involve numbers. If the actor has to choose between a lower and a higher number of victims, one must choose the lower number. However, there are several refinements of the problem which show the limitations of our moral intuition. For example, respondents are willing to divert a runaway trolley onto a track where it will kill one person rather than five; but respondents are unwilling to push an enormously fat bystander onto the tracks to save five people. We seem to be willing to think in purely numerical terms only about those involved ‘in the situation’ and unwilling to do so with those we perceive as ‘outside the situation.’

Well, in case we are facing, virtually everyone is ‘inside the situation’; so this leads us to a numerical treatment. But of course this is not so simple. What should we be measuring and comparing, exactly? I raised the question in my last post about this calculus of harm, and how it seems impossible to compare different types and levels of harm. As hospitals get overwhelmed, however, and care begins to be rationed, doctors are forced to make difficult choices along these lines, giving treatment to patients with the highest chances of recovery. Politicians are now faced with a kind of society-level triage.

One obvious basis of comparison is the number of lives lost. This is how we think of the trolley problem. But I think there is a case for also considering the number of lived years lost. What is ethically preferable: allowing the death of one person, or allowing the lifespans of 10 people to be reduced by 20 years each? I cannot answer this question, but I do think that the answer is not easy or self-evident. Reducing somebody’s lifespan may not be ethically on a par with letting someone die, but it is still quite a heavy consideration.

Further down the line, ethically speaking, is quality of life. Though it seems egregious to weigh death against quality of life issues, in practice we do it all the time. Smoking, drinking, and driving carry a risk, and a certain number of people will die per year by engaging in these activities; but we accept the cost because, as a society, we apparently have decided that it is “worth it” in terms of our quality of life. But of course, this comparison is not exactly appropriate for the case of coronavirus, since we ourselves make the decision to smoke or drive, whereas the risk of coronavirus is not voluntary. Thus, to save lives we should be willing to accept a greater loss in quality of life in this case, since we cannot control our exposure to the risk.

How exactly we choose to weigh or balance these three levels of damage—lives lost, lives shortened, and lives made worse—is not something I am prepared to put into numbers. (I suppose some economist is already doing so.) But I think we are obligated to try to at least take all of them into account.

Now, the other set of variables we must consider are empirical. On the medical side, these are: the lethality of the virus and the percentage of the population likely to get infected. On the economic side there are obvious factors like unemployment and loss in GDP and so forth. There are also factors such as loss in standard of living, homelessness, and the poverty rate; and still more difficult to calculate variables like the rate of suicide and drug addiction likely to result.

One major problem is that we know all of these variables imperfectly, and in some cases very imperfectly. To take an obvious datum, there is the virus’s lethality rate. From the available numbers, in Italy the fatality rate appears as high as 8%, while in Germany it is as low as 0.5%. This huge range contains a great deal of uncertainty. On the one hand, there is a good case that Germany gives a more accurate picture of the virus’s lethality, since they have done the most testing, about 120,000 a day; and logically more testing gives a more accurate result. However, we should remember that the virus’s lethality rate is not a single, static number. It affects different demographics differently, and it also depends on the availability of treatment. All of these factors need to be taken into account to establish the virus’s risk.

Complicating the uncertainty is the fact that the virus can create mild or even no symptoms, thus leaving open the question of the total number of cases—a number that must be known to determine the lethality rate. Asked to offer an estimate of the total number of infected people in Spain (the registered number is about 45,000 as of now), mathematicians offered estimates ranging from 150,000 to 900,000—and, of course, these are little more than educated guesses. If the former figure is correct, it would put the lethality at around 2%, while if the latter is correct the lethality is about 0.4%: another big range. 

Now that Spain is receiving a massive shipment of tests from China, our picture of the virus will likely become much more accurate in the coming days and weeks. (Actually, many of these tests are apparently worthless, so nevermind.*) However, one crucial datum is still missing from our knowledge: the total number who have already had the virus. To ascertain this, we will need to test for antibodies. It appears we will begin to have information on this front soon, as well, since the UK has purchased a great deal of at-home antibody tests. I believe other countries are following suit. Not only is this data crucial to accurately estimating the virus’s threat, but it is also of practical value, since those with antibodies will be in far less danger either of catching or of spreading the disease. (In the movie Contagion, those with antibodies are given little bracelets and allowed to travel freely.)

The New York Times has created an interesting tool for roughly estimating the potential toll of the virus. By adjusting the infection and fatality rate, we can examine the likely death toll. Of course, these rough calculations are limited in that they make the mistake Keynes highlights above—they assume an independence of variables. For example, the calculator shows how the coronavirus would match up with expected cancer and heart disease deaths. But of course more coronavirus deaths would likely mean fewer deaths from other causes, since many who would have died from other causes would succumb to coronavirus. (Other causes of death like traffic accidents may also go down because of the lockdown.) The proper way to make a final estimate, I believe, would be to see how many total deaths we have had in a year, and then compare that total with what we would reasonably expect to have had without the coronavirus.

As you can see, the problem of coming up with a grand calculation is difficult in the extreme. Even if we can ultimately ascertain all of the information we need—medical, economic, sociological—we will still have only an imperfect grasp of the situation. Indeed, Keynes’s warning is quite pertinent here, since every factor will be influencing every other. Unemployment affects access to health care, an overwhelmed health care system will be less effective across the board, and the fear of the virus alone has economic consequences. This makes the ‘trolley problem’ model misleading, since there are no entirely independent tracks that the trolley can be moving on. Any decision will affect virtually everyone in many different ways; and this makes the arithmetical approach limited. 

Trump has said that the cure cannot be worse than the disease. Obviously, however, the decision is not a simple choice between economic and bodily well-being. This is what makes the decision so very subtle and complicated. Not only must we weigh sorts of damage in our ethical scales, but we also must be able to think synthetically about the whole society—the many ways in which its health and wealth are bound up together—in order to act appropriately.

Once again, I do not envy those who will have to make these choices.

Quotes & Commentary #72: Mill

Quotes & Commentary #72: Mill

The creed which accepts as the foundation of morals, Utility, or the Greatest Happiness Principle, holds that actions are right in proportion as they tend to promote happiness, wrong as they tend to produce the reverse of happiness.

—John Stuart Mill

Like so many people on this fragile green globe, I have been thinking about this novel crisis. I find myself quite constantly frustrated, largely because we suddenly find ourselves in the position of reacting to a threat of unknown potency using uncertain means. I argued in my last post that our shift from total indifference to all-consuming concern cannot constitute a rational response. In this post I hope to explore what a rational, and ethical, response must comprise.

Governments around the world are in the tragic position of having to choose between saving a relatively small (but ever-growing) portion of the population from severe damage, and inflicting less acute damage on a much larger portion of the population.

In making decisions like this, I believe the only ethical principle that we turn to is the principle of utility. However, I do not think John Stuart Mill’s strong version—our duty is to promote happiness as much as possible—is feasible, at least not for individuals. My main criticism of such a formulation is that it would lead to basically unlimited duties on a person. Can a thoroughgoing utilitarian really enjoy a quiet tennis match when she could be, say, working in a soup kitchen? I do not think we can embrace an ethic that would demand a population of saints; and, besides, such an ethic would be self-defeating if actually put into practice, since each person who is trying to create the most happiness would, themselves, potentially be miserable. 

Thus, when it comes to individual behavior, I think that a negative version of utilitarianism applies: that we ought to try to refrain from activities that cause pain, harm, or unhappiness. Playing a tennis match, then, is alright; but breaking someone’s arm is not. This, I believe, is the standard that should be applied to individuals.

A government, however, is different; and different standards apply. A government has the obligation not only to avoid doing harm, but to actively reduce misery as much as possible. Unlike an individual—who could not live with an unlimited obligation to reduce unhappiness—a government, as an institution, does not have to balance its own happiness against others’, and so has a greater ethical obligation.

With this principle in view, the requirement for an ethical action on the government’s part would be to reduce suffering as much as possible. Of course, creating an exact calculus of harm is difficult at best. How can you compare, say, one death and a hundred million headaches? Yet since we must act, and since we ought to act as ethically as possible, we have little choice but to make do with a certain amount of imprecision.

Another source of imprecision is, of course, that we cannot know the future, and we know even the present only imperfectly. Because of this ignorance, every act can have unforeseen consequences. This is why we cannot evaluate an action on the ends it achieves alone, but must consider what could be reasonably known about the probable consequences of an action at the time it was taken. This means we have to have a certain ethical lenience for actions taken at a low state of knowledge, especially if the best available knowledge was consulted at the time. 

Aside from the test of morality, there is also a related test of rationality. To be rational means to be consistent. This means the same standard is applied to all of our actions, and that there are no special categories. An irrational ethic is necessarily an imperfect ethic, since it means at least some of its actions are less ethical than others. Many of our society’s injustices are cases of irrational ethics: holding people to different standards, giving out different rewards or punishments for the same actions, and so on.

I am trying to define what a rational, ethical response means, exactly, because I think very soon we will have to make more nuanced decisions about this crisis. So far the primary approach has been to institute lockdowns, with the idea of slowing the virus’s spread. Even though I think there is a strong argument that Western governments were culpably unprepared, locking things down now may be a rational response given the potential threat of the virus. But if we find that even thirty or forty days in confinement is not enough to put the virus on the defensive, then we will have to begin to weigh the social costs more carefully. Just as the real effectiveness of a lockdown remains to be seen, so is the social price still undetermined.

At the moment we are just coming to grips with the virus, and we are belatedly adopting a “better safe than sorry” policy. We are tracking the rising death tolls of the virus and focusing our attention quite exclusively on this crisis. This may be rational, considering the novelty of the virus and the currently unknown threat that it may pose. But as the crisis wears on, we will be forced to consider other factors. There is, after all, no guarantee that forty, fifty, or even sixty days of lockdown will make it safe for people to return to their daily lives. Michael Osterholm (an expert on infectious diseases) expects that the virus will be around until there is a vaccine, and that a vaccine will take 18 months at minimum.

Now, perhaps extraordinary measures and unlimited resources can reduce the time until we arrive at an effective vaccine. That is unknown. My worry is that a lockdown will begin to have very real negative effects on quite a huge number of people; and this will almost certainly happen before the vaccine is available. We in Madrid are one week into our lockdown so far. At the moment, the streets are mostly empty, and they are constantly patrolled by police who can give enormous fines for breaking curfew. Today I heard a loud and violent argument down the street as one person harassed another person for doing something outside (they were out of view). I can hear neighbors occasionally quarrelling through my window.

Arguments and tantrums are the least of our worry. A protracted lockdown will exacerbate mental health problems (some of which are quite serious) and put pressure on marriages, as the spike in Chinese divorces shows. In Spain, open air sport, like going on a walk or a run is forbidden. (Meanwhile, tobacco stores remain open, even though smoking is known as one of the risk factors of the disease.) How will this ban affect children if it is protracted? And how long are we prepared to keep children out of schools? Not only will they be learning less, but social interaction is crucial to childhood development. (Osterholm is skeptical of the school closures, since he thinks that there is little evidence that children are significant vectors of the disease, and many health personnel with children might be forced to stay home. The demographic data from Spain—which doubtless overestimates the fatality rate across the board, since testing has been limited—seems to bear him out.)

In Spain, the government has, at yet, not waived rental payments. For people living from paycheck to paycheck, and who have been laid off, what will they do on April 1st when rent is due? Even if we are released on April 12, how many people will be completely out of work at that time? How many people risk losing their jobs and their homes? If and when coronavirus has disappeared completely, it may take a damaged economy years to return to normal. How will people get by if thousands of businesses go bankrupt and unemployment remains high for the long term?

Economic damage may sound fanciful compared with a health crisis, but it translates into a reduced—sometimes a drastically reduced—quality of life for millions. In the scale of human suffering, poverty is not negligible. Yet if such considerations seem petty, we must also consider something that Nicholas Kristoff (among others) has written about extensively: the rise of “deaths of despair” among America’s working class. These deaths can result from drug overdose or suicide, and they have been on the rise because of the worsening plight of working class America. We must consider, then, that economic damage does not only reduce the quality of life for millions, but it can translate directly into fatalities.

More generally, economic failure has a pronounced effect on life expectancy, even if you try to control for other factors. To quote from Bryson’s book on the body: “Someone who is otherwise identical to you but poor—exercises as devotedly, sleeps as many hours, eats a similarly healthy diet, but just as less money in the bank—can expect to die between ten and fifteen years sooner.” So economics indeed translates into years of life. 

Now, I am not advocating against the lockdown. As I said before, given our available information, it may be a good and rational response. I am saying that, in the long run, an ethical evaluation requires that we consider the complete social costs of these measures. Just as importantly, if the coronavirus is, indeed, here to stay, then a rational response requires that we act consistently towards this risk.

This is what I mean. At the moment, coronavirus deaths are treated as a special category. This may be rational if we can eliminate the threat in a reasonable amount of time. But if we cannot eliminate this threat, and it is, indeed, here to stay for a year or more, then I am not sure that this attitude can be rationally sustained. A rational ethic will require us to see the coronavirus as one of many potential causes of death—more dangerous, perhaps, but no more or less acceptable than any other cause of death. 

After this long and perhaps silly post—which I hope will be the last thing I devote to the virus for a time—I will end on a more practical note. 

From what I observe, I fear that we may not be learning quite the right lessons from China’s success. Donald McNeil (a science reporter for the New York Times) explains that the lockdown in China was only the necessary and not the sufficient reason for the country’s recovery. The lockdown was complemented by widespread testing and the government’s ability to isolate people from one another. A small town in Italy, , was similarly able to halt the virus by testing all of its residents and isolating the infected. Mike Ryan, an expert at the World Health Organization, has recently offered the same advice—that a lockdown without other measures is not enough. Here in Spain, the testing resources are severely limited, and only available for serious cases (although this will change soon). People with mild symptoms are not isolated but are being told to stay in their homes, which could potentially mean infecting their whole family. I hope, then, that we can not only learn from China’s strictest measures, but also their most intelligent. 

On Morality

On Morality

What does it mean to do the right thing? What does it mean to be good or evil?

These questions have perplexed people since people began to be perplexed about things. They are the central questions of one of the longest lines of intellectual inquiry in history: ethics. Great thinkers have tackled it; whole religions have been based around it. But confusion still remains.

Well perhaps I should be humble before attempting to solve such a momentous question, seeing who have come before me. And indeed, I don’t claim any originality or finality in these answers. I’m sure they have been thought of before, and articulated more clearly and convincingly by others (though I don’t know by whom). Nevertheless, if only for my own sake I think it’s worthwhile to set down how I tend to think about morality—what it is, what it’s for, and how it works.

I am much less concerned in this essay with asserting how I think morality should work than with describing how it does work—although I think understanding the second is essential to understanding the first. That is to say, I am not interested in fantasy worlds of selfless people performing altruistic acts, but in real people behaving decently in their day-to-day life. But to begin, I want to examine some of the assumptions that have characterized earlier concepts of ethics, particularly with regard to freedom.

Most thinkers begin with a free individual contemplating multiple options. Kantians think that the individual should abide by the categorical imperative and act with consistency; Utilitarians think that the individual should attempt to promote happiness with her actions. What these systems disagree about is the appropriate criterion. But they do both assume that morality is concerned with free individuals and the choices they make. They disagree about the nature of Goodness, but agree that Goodness is a property of people’s actions, making the individual in question worthy of blame or praise, reward or punishment.

The Kantian and Utilitarian perspectives both have a lot to recommend them. But they do tend to produce an interesting tension: the first focuses exclusively on intentions while the second focuses exclusively on consequences. Yet surely both intentions and consequences matter. Most people, I suspect, wouldn’t call somebody moral if they were always intending to do the right thing and yet always failing. Neither would we call somebody moral if they always did the right thing accidentally. Individually, neither of these systems captures our intuitive feeling that both intentions and consequences are important; and yet I don’t see how they can be combined, because the systems have incompatible intellectual justifications.

But there’s another feature of both Kantian and Utilitarian ethics that I do not like, and it is this: Free will. The systems presuppose individuals with free will, who are culpable for their actions because they are responsible for them. Thus it is morally justifiable to punish criminals because they have willingly chosen something wrong. They “deserve” the punishment, since they are free and therefore responsible for their actions.

I’d like to focus on this issue of deserving punishment, because for me it is the key to understanding morality. By this I mean the notion that doing ill to a criminal helps to restore moral order to the universe, so to speak. But before I discuss punishment I must take a detour into free will, since free will, as traditionally conceived, provides the intellectual foundation for this worldview.

What is free will? In previous ages, humans were conceived of as a composite of body and soul. The soul sent directions to the body through the “will.” The body was material and earthly, while the soul was spiritual and holy. Impulses from the body—for example, anger, lust, gluttony—were bad, in part because they destroyed your freedom. To give into lust, for example, was to yield to your animal nature; and since animals aren’t free, neither is the lustful individual. By contrast, impulses from the soul (or mind) were free because they were unconstrained by the animal instincts that compromise your ability to choose.

Thus free will, as it was originally conceived, was the ability to make choices unconstrained by one’s animal nature and by the material world. The soul was something apart and distinct from one’s body; the mind was its own place, and could make decisions independently of one’s impulses or one’s surroundings. It was even debated whether God Himself could predict the behavior of free individuals. Some people held that even God couldn’t, while others maintained that God did know what people would or wouldn’t do, but God’s knowledge wasn’t the cause of their doing it. (And of course, some people believed in predestination.)

It is important to note that, in this view, free will is an uncaused cause. That is, when somebody makes a decision, this decision is not caused by anything in the material world as we know it. The choice comes straight from the soul, bursting into our world of matter and electricity. The decision would therefore be impossible to predict by any scientific means. No amount of brain imaging or neurological study could explain why a person made a certain decision. Nor could the decision be explained by cultural or social factors, since individuals, not groups, were responsible for them. All decisions were therefore caused by individuals, and that’s the essence of freedom.

It strikes me that this is still how we tend to think about free will, more or less. And yet, this view is based on an outdated understanding of human behavior. We now know that human behavior can be explained by a combination of biological and cultural influences. Our major academic debate—nature vs. nurture—presupposes that people don’t have free will. Behavior is the result of the way your genes are influenced by your environment. There is no evidence for the existence of the soul, and there is no evidence that the mind cannot be explained through understanding the brain.

Furthermore, even without the advancements of the biological and social sciences, the old way of viewing things was not philosophically viable, since it left unexplained how the soul affects the body and vice versa. If the soul and the body were metaphysically distinct, how could the immaterial soul cause the material body to move? And how could a pinch in your leg cause a pain in your mind? What’s more, if there really was an immaterial soul that was causing your body to move, and if these bodily movements truly didn’t have any physical cause, then it’s obvious that your mind would be breaking the laws of physics. How else could the mind produce changes in matter that didn’t have any physical cause?

I think this old way of viewing the body and the soul must be abandoned. Humans do not have free will as originally conceived. Humans do not perform actions that cannot be scientifically predicted or explained. Human behavior, just like cat behavior, is not above scientific explanation. The human mind cannot generated uncaused causes, and does not break the laws of physics. We are intelligent apes, not entrapped gods.

Now you must ask me: But if human behavior can be explained in the same way that squirrel behavior can, how do we have ethics at all? We don’t think squirrel are capable of ethical or unethical behavior because they don’t have minds. We can’t hold a squirrel to any ethical standard and we therefore can’t justifiably praise or censor a squirrel’s actions. If humans aren’t categorically different then squirrels, than don’t we have to give up on ethics altogether?

This is not justified. Even though I think it is wrong to say that certain people “deserve” punishment (in the Biblical sense), I do think that certain types of consequences can be justified as deterrents. The difference between humans and squirrels is not that humans are free, but that humans are capable of thinking about the long term consequences of an action before committing it. Individuals should be held accountable, not because they have free will, but because humans have a great deal of behavioral flexibility, thus allowing their behavior to be influenced by the threat of prison.

This is why it is justifiable to lock away murderers. If it is widely known among the populace that murderers get caught and thrown into prison, this reduces the number of murders. Imprisoning squirrels for stealing peaches, on the other hand, wouldn’t do anything at all, since the squirrel community wouldn’t understand what was going on. With humans, the threat of punishment acts as a deterrent. Prison becomes part of the social environment, and therefore will influence decision-making. But in order for this threat to act as an effective deterrent, it cannot be simply a threat; real murderers must actually face consequences or the threat won’t be taken seriously and thus won’t influence behavior.

To understand how our conception of free will affects the way we organize our society, consider the case of drug addiction. In the past, addicts were seen as morally depraved. This was a direct consequence of the way people thought about free will. If people’s decisions were made independently of their environment or biology, then there was no excuses or mitigating circumstance for drug addicts. Addicts were simply weak, depraved people who mysteriously kept choosing self-destructive behavior. What resulted from this was the disastrous war on drugs, a complete fiasco. Now we know that it is absurd to throw people into jail for being addicted, simply absurd, because addicts are not capable of acting otherwise. This is the very definition of addiction, that one’s decision-making abilities have been impaired.

As we’ve grown more enlightened about drug addiction, we’ve realized that throwing people in jail doesn’t solve anything. Punishment does not act as an effective deterrent when normal decision-making is compromised. By transitioning to a system where addiction is given treatment and support, we have effectively transitioned from an old view of free will to the new view that humans behavior is the result of biology, environment, and culture. We don’t hold them “responsible” because we know it would be like holding a squirrel responsible for burying nuts. This is a step forward, and it has been taken by abandoning the old views of free will.

I think we should apply this new view of human behavior to other areas of criminal activity. We need to get rid of the old notions of free will and punishment. We must abandon the idea of punishing people because they “deserve” it. Murderers should be punished, but not because they deserve to suffer, but for the following two reasons: first, because they have shown themselves to be dangerous and should be isolated; and second, because their punishment helps to act as a deterrent to future murderers. Punishment is just only insofar as these two criteria are met. Once a murderer is made to suffer more than is necessary to deter future crimes, and is isolated more than is necessary to protect others, then I think it is unjustifiable and wrong to punish him further.

In short, we have to give up on the idea that inflicting pain and discomfort on a murderer helps to restore moral balance to the universe. Vengeance in all its forms should be removed from our justice system. It is not the job of us or anyone else to seek retributions for wrongs committed. Punishments are only justifiable because they help to protect the community. The aim of punishing murderers is neither to hurt nor to help them, but to prevent other people from becoming murderers. And this is, I think, the reason why the barbarous methods of torture and execution are wrong, because I very much doubt that brutal punishments are justified in terms of further efficacy in deterrence. However, I’m sure there is interesting research somewhere on this.

Seen in this way, morality can be understood in the same way we understand language—as a social adaptation that benefits the community as a whole as well as individual members of the community. Morality is a code of conduct imposed by the community on its members, and derivations from this code of conduct are justifiably punished for the safety of the other members of the community. When this code is broken, a person forfeits the protection under the code, and is dealt with in such a way that future derivations from the moral code are discouraged.

Just as Wittgenstein said that a private language is impossible, so I’d argue that a private morality is impossible. A single, isolated individual can be neither moral nor immoral. People are born with a multitude of desires; and every desire is morally neutral. A moral code comes into play when two individuals begin to cooperate. This is because the individuals will almost inevitably have some desires that conflict. A system of behavior is therefore necessary if the two are to live together harmoniously. This system of behavior is their moral code. In just the same way that language results when two people both use the same sounds to communicate the same messages, morality results when two people’s desires and actions are in harmony. Immorality arises when the harmonious arrangement breaks down, and one member of the community satisfies their desire at the expense of the others. Deviations of this kind must have consequences if the system is to maintain itself, and this is the justification for punishment.

One thing to note about this account of moral systems is that they arise for the well-being of their participants. When people are working together, when their habits and opinions are more or less in harmony, when they can walk around in their neighborhood without fearing every person they meet, both the individual and the group benefits. This point is worth stressing, since we now know that the human brain is the product of evolution, and therefore we must surmise that universal features of human behavior, such as morality, are adaptive. The fundamental basis for morality is self-interest. What distinguishes moral from immoral behavior is not that the first is unselfish while the other is selfish, but that the first is more intelligently selfish than the second.

It isn’t hard to see how morality is adaptive. One need only consider the basic tenets of game theory. In the short term, to cooperate with others may not be as advantageous as simply exploiting others. Robbery is a quicker way to make money than farming. And indeed, the potentially huge advantages of purely selfish behavior explains why unethical behavior occurs: Sometimes it benefits individuals more to exploit rather than to help one another. Either that, or certain individuals—either from ignorance or desperation—are willing to risk long-term security for short-term gains. Nevertheless, in general moral behaviors tend to be more advantageous, if only because selfish behavior is more risky. All unethical behavior, even if carried on in secret, carries a risk of making enemies; and in the long run, enemies are less useful than friends. The funny thing about altruism is that it’s often more gainful than selfishness.

Thus this account of morality can be harmonized with an evolutionary account of human behavior. But what I find most satisfying about this view of morality is that it allows us to see why we care both about intentions and consequences. Intentions are important in deciding how to punish misconduct because they help determine how an individual is likely to behave in the future. A person who stole something intentionally has demonstrated a willingness to break the code, while a person who took something by accident has only demonstrated absent-mindedness. The first person is therefore more of a risk to the community. Nevertheless, it is seldom possible to prove what somebody intended beyond the shadow of a doubt, which is why it is also necessary to consider the consequences of an action. What is more, carelessness as regards the moral code must be forcibly discouraged, otherwise the code will not function properly. This is why, in certain cases, breaches of conduct must be punished even if they were demonstrably unintentional—to discourage other people in the future from being careless.

Let me pause here to sketch out some more philosophical objections to the Utilitarian and Kantian systems, besides the fact that they don’t adequately explain how we tend to think about morality. Utilitarianism does capture something important when it proclaims that actions should be judged insofar as they further the “greatest possible happiness.” Yet taken by itself this doctrine has some problems. The first is that you never know how something is going to turn out, and even the most concerted efforts to help people sometimes backfire. Should these efforts, made in good faith, be condemned as evil if they don’t succeed? What’s more, Utilitarian ethics can lead to disturbing moral questions. For example, is it morally right to kill somebody if you can use his organs to save five other people? Besides this, if the moral injunction is to work constantly towards the “greatest possible happiness,” then we might even have to condemn simple things like a game of tennis, since two people playing tennis certainly could be doing something more humanitarian with their time and energy.

The Kantian system has the opposite problem in that it stresses good intentions and consistency to an absurd degree. If the essence of immorality is to make an exception of oneself—which covers lying, stealing, and murder—then telling a fib is morally equivalent to murdering somebody in cold blood, since both of those actions equally make exceptions of the perpetrator. This is what results if you overemphasize consistency and utterly disregard consequences. What’s more, intentions are, as I said above, basically impossible to prove—and not only to other people, but also to yourself. Can you prove, beyond a shadow of a doubt, that your intentions were pure yesterday when you accidentally said something rude? How do you know your memory and your introspection can be trusted? However, let me leave off with these objections because I think entirely too much time in philosophy is given over to tweezing apart your enemies’ ideas and not enough to building your own.

Thus, to repeat myself, both consequences and intentions, both happiness and consistency must be a part of any moral theory if it is to capture how we do and must think about ethics. Morality is an adaptation. The capacity for morality has evolved because moral systems benefit both groups and individuals. Morality is rooted in self-interest, but it is an intelligent form of self-interest that recognizes that other people are most useful as allies than as enemies. Morality is neither consistency nor pleasure. Morality is consistency for the sake of pleasure. This is why moral strictures that demand that people devote their every waking hour to helping others or to never make exceptions of themselves are self-defeating, because when a moral system is onerous is isn’t performing its proper function.

But now I must deal with that fateful question: Is morality absolute or relative? At first glance it would seem that my account would put me squarely in the relativist camp, seeing that I point to a community code of conduct. Nevertheless, when it comes to violence I am decidedly a moral absolutist. This is because I think that physical violence can only ever be justified by citing defense. First, to use violence to defend yourself from violent attack is neither moral nor immoral, because at this point the moral code has already broken down. The metaphorical contract has been broken, and you are now in a situation where the you must either fight, run, or be killed. The operant rule is now survival and not morality. For the same reason a whole community may justifiably protect itself from invasion from an enemy force (although capitulating is equally defensible). And lastly violence (in the form of imprisonment) is justified in the case of criminals, for the reasons I discussed above.

What if there are two communities, community A and community B, living next to one another? Both of these communities have their own moral codes which the people abide by. What if a person from community A encounters a person from community B? Is it justifiable for either of them to use violence against the other? After all, each of them is outside the purview of the other’s moral code, since moral codes develop within communities. Well in practice situations like this do commonly result in violence. Whenever Europeans encountered a new community—whether in the Americas or in Africa—the result was typically disastrous for that community. This isn’t simply due to the wickedness of Europeans; it has been a constant throughout history: When different human communities interact, violence is very often the result. And this, by the way, is one of the benefits of globalization. The more people come to think of humanity as one community, the less violence we will experience.

Nevertheless, I think that violence between people from different communities is ultimately immoral, and this is why. To feel it is permissible to kill somebody just because they are not in your group is to consider that person subhuman—as fundamentally different. This is what we now call “Othering,” and it is what underpins racism, sexism, religious bigotry, homophobia, and xenophobia. But of course we now know that it is untrue that other communities, other religions, other races, women, men, or homosexuals or anyone else are “fundamentally” different or in any way subhuman. It is simply incorrect. And I think the recognition that we all belong to one species—with only fairly superficial differences in opinions, customs, rituals, and so on—is the key to moral progress. Moral systems can be said to be comparatively advanced or backward to the extent that they recognize that all humans belong to the same species. In other words, moral systems can be evaluated by looking at how many types of people they include.

This is the reason why it is my firm belief that the world as it exists today—full as it still is with all sorts of violence and prejudice—is morally superior than ever before. Most of us have realized that racism was wrong because it was based on a lie; and the same goes for sexism, homophobia, religious bigotry, and xenophobia. These forms of bias were based on misconceptions; they were not only morally wrong, but factually wrong.

Thus we ought to be tolerant of immorality in the past, for the same reason that we excuse people in the past for being wrong about physics or chemistry. Morality cannot be isolated from knowledge. For a long time, the nature of racial and sexual differences was unknown. Europeans had no experience and thus no understanding of non-Western cultures. All sorts of superstitions and religious injunctions were believed in, to an extent most of us can’t even appreciate now. Before widespread education and the scientific revolution, people based their opinions on tradition rather than evidence. And in just the same way that it is impossible to justly put someone in prison without evidence of their guilt, it impossible to be morally developed if your beliefs are based on misinformation. Africans and women used to be believed to be mentally inferior; homosexuals used to be believed to be possessed by evil spirits. Now we know that there is no evidence for these views, and in fact evidence to the contrary, so we can cast them aside; but earlier generations were not so lucky.

To the extent, therefore, that backward moral systems are based on a lack of knowledge, they must be tolerated. In this why we ought to be tolerant of other cultures and of the past. But to the extent that facts are wilfully disregarded in a moral system, that system can be said to be corrupt. Thus the real missionaries are not the ones who spread religion, but who spread knowledge, for increased understanding of the world allows us develop our morals.

These are my ideas in their essentials. But for the sake of honesty I have to add that the ideas I put forward above have been influenced by my studies in cultural anthropology, as well as my reading of Locke, Hobbes, Hume, Spinoza, Santayana, Ryle, Wittgenstein, and of course by Mill and Kant. I was also influenced by Richard Dawkins’s discussion of Game Theory in his book, The Selfish Gene. Like most third-rate intellectual work, this essay is, for the most part, a muddled hodgepodge of other people’s ideas.