The Cognitive Science of Morality Part II: Molly Crockett

JDN 2457140 EDT 20:16.

This weekend has been very busy for me, so this post is going to be shorter than most—which is probably a good thing anyway, since my posts tend to run a bit long.

In an earlier post I discussed the Weinberg Cognitive Science Conference and my favorite speaker in the lineup, Joshua Greene. After a brief interlude from Capybara Day, it’s now time to talk about my second-favorite speaker, Molly Crockett. (Is it just me, or does the name “Molly” somehow seem incongruous with a person of such prestige?)

Molly Crockett is a neuroeconomist, though you’d never hear her say that. She doesn’t think of herself as an economist at all, but purely as a neuroscientist. I suspect this is because when she hears the word “economist” she thinks of only mainstream neoclassical economists, and she doesn’t want to be associated with such things.

Still, what she studies is clearly neuroeconomics—I in fact first learned of her work by reading the textbook Neuroeconomics, though I really got interested in her work after watching her TED Talk. It’s one of the better TED talks (they put out so many of them now that the quality is mixed at best); she talks about news reporting on neuroscience, how it is invariably ridiculous and sensationalist. This is particularly frustrating because of how amazing and important neuroscience actually is.

I could almost forgive the sensationalism if they were talking about something that’s actually fantastically boring, like, say, tax codes, or financial regulations. Of course, even then there is the Oliver Effect: You can hide a lot of evil by putting it in something boring. But Dodd-Frank is 2300 pages long; I read an earlier draft that was only (“only”) 600 pages, and it literally contained a three-page section explaining how to define the word “bank”. (Assuming direct proportionality, I would infer that there is now a twelve-page section defining the word “bank”. Hopefully not?) It doesn’t get a whole lot more snoozeworthy than that. So if you must be a bit sensationalist in order to get people to see why eliminating margin requirements and the swaps pushout rule are terrible, terrible ideas, so be it.

But neuroscience is not boring, and so sensationalism only means that news outlets are making up exciting things that aren’t true instead of saying the actually true things that are incredibly exciting.

Here, let me express without sensationalism what Molly Crockett does for a living: Molly Crockett experimentally determines how psychoactive drugs modulate moral judgments. The effects she observes are small, but they are real; and since these experiments are done using small doses for a short period of time, if these effects scale up they could be profound. This is the basic research component—when it comes to technological fruition it will be literally A Clockwork Orange. But it may be A Clockwork Orange in the best possible way: It could be, at last, a medical cure for psychopathy, a pill to make us not just happier or healthier, but better. We are not there yet by any means, but this is clearly the first step: Molly Crockett is to A Clockwork Orange roughly as Michael Faraday is to the Internet.

In one of the experiments she talked about at the conference, Crockett found that serotonin reuptake inhibitors enhance harm aversion. Serotonin reuptake inhibitors are very commonly used drugs—you are likely familiar with one called Prozac. So basically what this study means is that Prozac makes people more averse to causing pain in themselves or others. It doesn’t necessarily make them more altruistic, let alone more ethical; but it does make them more averse to causing pain. (To see the difference, imagine a 19th-century field surgeon dealing with a wounded soldier; there is no anesthetic, but an amputation must be made. Sometimes being ethical requires causing pain.)

The experiment is actually what Crockett calls “the honest Milgram Experiment“; under Milgram, the experimenters told their subjects they would be causing shocks, but no actual shocks were administered. Under Crockett, the shocks are absolutely 100% real (though they are restricted to a much lower voltage of course). People are given competing offers that contain an amount of money and a number of shocks to be delivered, either to you or to the other subject. They decide how much it’s worth to them to bear the shocks—or to make someone else bear them. It’s a classic willingness-to-pay paradigm, applied to the Milgram Experiment.

What Crockett found did not surprise me, nor do I expect it will surprise you if you imagine yourself in the same place; but it would totally knock the socks off of any neoclassical economist. People are much more willing to bear shocks for money than they are to give shocks for money. They are what Crockett terms hyper-altruistic; I would say that they are exhibiting an apparent solidarity coefficient greater than 1. They seem to be valuing others more than they value themselves.

Normally I’d say that this makes no sense at all—why would you value some random stranger more than yourself? Equally perhaps, and obviously only a psychopath would value them not at all; but more? And there’s no way you can actually live this way in your daily life; you’d give away all your possessions and perhaps even starve yourself to death. (I guess maybe Jesus lived that way.) But Crockett came up with a model that explains it pretty well: We are morally risk-averse. If we knew we were dealing with someone very strong who had no trouble dealing with shocks, we’d be willing to shock them a fairly large amount. But we might actually be dealing with someone very vulnerable who would suffer greatly; and we don’t want to take that chance.

I think there’s some truth to that. But her model leaves something else out that I think is quite important: We are also averse to unfairness. We don’t like the idea of raising one person while lowering another. (Obviously not so averse as to never do it—we do it all the time—but without a compelling reason we consider it morally unjustified.) So if the two subjects are in roughly the same condition (being two undergrads at Oxford, they probably are), then helping one while hurting the other is likely to create inequality where none previously existed. But if you hurt yourself in order to help yourself, no such inequality is created; all you do is raise yourself up, provided that you do believe that the money is good enough to be worth the shocks. It’s actually quite Rawslian; lifting one person up while not affecting the other is exactly the sort of inequality you’re allowed to create according to the Difference Principle.

There’s also the fact that the subjects can’t communicate; I think if I could make a deal to share the money afterward, I’d feel better about shocking someone more in order to get us both more money. So perhaps with communication people would actually be willing to shock others more. (And the sensation headline would of course be: “Talking makes people hurt each other.”)

But all of these ideas are things that could be tested in future experiments! And maybe I’ll do those experiments someday, or Crockett, or one of her students. And with clever experimental paradigms we might find out all sorts of things about how the human mind works, how moral intuitions are structured, and ultimately how chemical interventions can actually change human moral behavior. The potential for both good and evil is so huge, it’s both wondrous and terrifying—but can you deny that it is exciting?

And that’s not even getting into the Basic Fact of Cognitive Science, which undermines all concepts of afterlife and theistic religion. I already talked about it before—as the sort of thing that I sort of wish I could say when I introduce myself as a cognitive scientist—but I think it bears repeating.

As Patricia Churchland said on the Colbert Report: Colbert asked, “Are you saying I have no soul?” and she answered, “Yes.” I actually prefer Daniel Dennett’s formulation: “Yes, we have a soul, but it’s made of lots of tiny robots.”

We don’t have a magical, supernatural soul (whatever that means); we don’t have an immortal soul that will rise into Heaven or be reincarnated in someone else. But we do have something worth preserving: We have minds that are capable of consciousness. We love and hate, exalt and suffer, remember and imagine, understand and wonder. And yes, we are born and we die. Once the unique electrochemical pattern that defines your consciousness is sufficiently degraded, you are gone. Nothing remains of what you were—except perhaps the memories of others, or things you have created. But even this legacy is unlikely to last forever. One day it is likely that all of us—and everything we know, and everything we have built, from the Great Pyramids to Hamlet to Beethoven’s Ninth to Principia Mathematica to the US Interstate Highway System—will be gone. I don’t have any consolation to offer you on that point; I can’t promise you that anything will survive a thousand years, much less a million. There is a chance—even a chance that at some point in the distant future, whatever humanity has become will find a way to reverse the entropic decay of the universe itself—but nothing remotely like a guarantee. In all probability you, and I, and all of this will be gone someday, and that is absolutely terrifying.

But it is also undeniably true. The fundamental link between the mind and the brain is one of the basic facts of cognitive science; indeed I like to call it The Basic Fact of Cognitive Science. We know specifically which kinds of brain damage will make you unable to form memories, comprehend language, speak language (a totally different area), see, hear, smell, feel anger, integrate emotions with logic… do I need to go on? Everything that you are is done by your brain—because you are your brain.

Now why can’t the science journalists write about that? Instead we get “The Simple Trick That Can Boost Your Confidence Immediately” and “When it Comes to Picking Art, Men & Women Just Don’t See Eye to Eye.” HuffPo is particularly awful of course; the New York Times is better, but still hardly as good as one might like. They keep trying to find ways to make it exciting—but so rarely seem to grasp how exciting it already is.

Yes, but what about the next 5000 years?

JDN 2456991 PST 1:34.

This week’s post will be a bit different: I have a book to review. It’s called Debt: The First 5000 Years, by David Graeber. The book is long (about 400 pages plus endnotes), but such a compelling read that the hours melt away. “The First 5000 Years” is an incredibly ambitious subtitle, but Graeber actually manages to live up to it quite well; he really does tell us a story that is more or less continuous from 3000 BC to the present.

So who is this David Graeber fellow, anyway? None will be surprised that he is a founding member of Occupy Wall Street—he was in fact the man who coined “We are the 99%”. (As I’ve studied inequality more, I’ve learned he made a mistake; it really should be “We are the 99.99%”.) I had expected him to be a historian, or an economist; but in fact he is an anthropologist. He is looking at debt and its surrounding institutions in terms of a cultural ethnography—he takes a step outside our own cultural assumptions and tries to see them as he might if he were encountering them in a foreign society. This is what gives the book its freshest parts; Graeber recognizes, as few others seem willing to, that our institutions are not the inevitable product of impersonal deterministic forces, but decisions made by human beings.

(On a related note, I was pleasantly surprised to see in one of my economics textbooks yesterday a neoclassical economist acknowledging that the best explanation we have for why Botswana is doing so well—low corruption, low poverty by African standards, high growth—really has to come down to good leadership and good policy. For once they couldn’t remove all human agency and mark it down to grand impersonal ‘market forces’. It’s odd how strong the pressure is to do that, though; I even feel it in myself: Saying that civil rights progressed so much because Martin Luther King was a great leader isn’t very scientific, is it? Well, if that’s what the evidence points to… why not? At what point did ‘scientific’ come to mean ‘human beings are helplessly at the mercy of grand impersonal forces’? Honestly, doesn’t the link between science and technology make matters quite the opposite?)

Graeber provides a new perspective on many things we take for granted: in the introduction there is one particularly compelling passage where he starts talking—with a fellow left-wing activist—about the damage that has been done to the Third World by IMF policy, and she immediately interjects: “But surely one has to pay one’s debts.” The rest of the book is essentially an elaboration on why we say that—and why it is absolutely untrue.

Graeber has also made me think quite a bit differently about Medieval society and in particular Medieval Islam; this was certainly the society in which the writings of Socrates were preserved and algebra was invented, so it couldn’t have been all bad. But in fact, assuming that Graeber’s account is accurate, Muslim societies in the 14th century actually had something approaching the idyllic fair and free market to which all neoclassicists aspire. They did so, however, by rejecting one of the core assumptions of neoclassical economics, and you can probably guess which one: the assumption that human beings are infinite identical psychopaths. Instead, merchants in Medieval Muslim society were held to high moral standards, and their livelihood was largely based upon the reputation they could maintain as upstanding good citizens. Theoretically they couldn’t even lend at interest, though in practice they had workarounds (like payment in installments that total slightly higher than the original price) that amounted to low rates of interest. They did not, however, have anything approaching the levels of interest that we have today in credit cards at 29% or (it still makes me shudder every time I think about it) payday loans at 400%. Paying on installments to a Muslim merchant would make you end up paying about a 2% to 4% rate of interest—which sounds to me almost exactly what it should be, maybe even a bit low because we’re not taking inflation into account. In any case, the moral standards of society kept people from getting too poor or too greedy, and as a result there was little need for enforcement by the state. In spite of myself I have to admit that may not have been possible without the theological enforcement provided by Islam.
Graeber also avoids one of the most common failings of anthropologists, the cultural relativism that makes them unwilling to criticize any cultural practice as immoral even when it obviously is (except usually making exceptions for modern Western capitalist imperialism). While at times I can see he was tempted to go that way, he generally avoids it; several times he goes out of his way to point out how women were sold into slavery in hunter-gatherer tribes and how that contributed to the institutions of chattel slavery that developed once Western powers invaded.

Anthropologists have another common failing that I don’t think he avoids as well, which is a primitivist bent in which anthropologists speak of ancient societies as idyllic and modern societies as horrific. That’s part of why I said ‘if Graber’s account is accurate,’ because I’m honestly not sure it is. I’ll need to look more into the history of Medieval Islam to be sure. Graeber spends a great deal of time talking about how our current monetary system is fundamentally based on threats of violence—but I can tell you that I have honestly never been threatened with violence over money in my entire life. Not by the state, not by individuals, not by corporations. I haven’t even been mugged—and that’s the sort of the thing the state exists to prevent. (Not that I’ve never been threatened with violence—but so far it’s always been either something personal, or, more often, bigotry against LGBT people.) If violence is the foundation of our monetary system, then it’s hiding itself extraordinarily well. Granted, the violence probably pops up more if you’re near the very bottom, but I think I speak for most of the American middle class when I say that I’ve been through a lot of financial troubles, but none of them have involved any guns pointed at my head. And you can’t counter this by saying that we theoretically have laws on the books that allow you to be arrested for financial insolvency—because that’s always been true, in fact it’s less true now than any other point in history, and Graeber himself freely admits this. The important question is how many people actually get violence enforced upon them, and at least within the United States that number seems to be quite small.

Graeber describes the true story of the emergence of money historically, as the result of military conquest—a way to pay soldiers and buy supplies when in an occupied territory where nobody trusts you. He demolishes the (always fishy) argument that money emerged as a way of mediating a barter system: If I catch fish and he makes shoes and I want some shoes but he doesn’t want fish right now, why not just make a deal to pay later? This is of course exactly what they did. Indeed Graeber uses the intentionally provocative word communism to describe the way that resources are typically distributed within families and small villages—because it basically is “from each according to his ability, to each according to his need”. (I would probably use the less-charged word “community”, but I have to admit that those come from the same Latin root.) He also describes something I’ve tried to explain many times to neoclassical economists to no avail: There is equally a communism of the rich, a solidarity of deal-making and collusion that undermines the competitive market that is supposed to keep the rich in check. Graeber points out that wine, women and feasting have been common parts of deals between villages throughout history—and yet are still common parts of top-level business deals in modern capitalism. Even as we claim to be atomistic rational agents we still fall back on the community norms that guided our ancestors.

Another one of my favorite lines in the book is on this very subject: “Why, if I took a free-market economic theorist out to an expensive dinner, would that economist feel somewhat diminished—uncomfortably in my debt—until he had been able to return the favor? Why, if he were feeling competitive with me, would he be inclined to take me someplace even more expensive?” That doesn’t make any sense at all under the theory of neoclassical rational agents (an infinite identical psychopath would just enjoy the dinner—free dinner!—and might never speak to you again), but it makes perfect sense under the cultural norms of community in which gifts form bonds and generosity is a measure of moral character. I also got thinking about how introducing money directly into such exchanges can change them dramatically: For instance, suppose I took my professor out to a nice dinner with drinks in order to thank him for writing me recommendation letters. This seems entirely appropriate, right? But now suppose I just paid him $30 for writing the letters. All the sudden it seems downright corrupt. But the dinner check said $30 on it! My bank account debit is the same! He might go out and buy a dinner with it! What’s the difference? I think the difference is that the dinner forms a relationship that ties the two of us together as individuals, while the cash creates a market transaction between two interchangeable economic agents. By giving my professor cash I would effectively be saying that we are infinite identical psychopaths.

While Graeber doesn’t get into it, a similar argument also applies to gift-giving on holidays and birthdays. There seriously is—I kid you not—a neoclassical economist who argues that Christmas is economically inefficient and should be abolished in favor of cash transfers. He wrote a book about it. He literally does not understand the concept of gift-giving as a way of sharing experiences and solidifying relationships. This man must be such a joy to have around! I can imagine it now: “Will you play catch with me, Daddy?” “Daddy has to work, but don’t worry dear, I hired a minor league catcher to play with you. Won’t that be much more efficient?”

This sort of thing is what makes Debt such a compelling read, and Graeber does make some good points and presents a wealth of historical information. So now it’s time to talk about what’s wrong with the book, the things Graeber gets wrong.

First of all, he’s clearly quite ignorant about the state-of-the-art in economics, and I’m not even talking about the sort of cutting-edge cognitive economics experiments I want to be doing. (When I read what Molly Crockett has been working on lately in the neuroscience of moral judgments, I began to wonder if I should apply to University College London after all.)

No, I mean Graeber is ignorant of really basic stuff, like the nature of government debt—almost nothing of what I said in that post is controversial among serious economists; the equations certainly aren’t, though some of the interpretation and application might be. (One particularly likely sticking point called “Ricardian equivalence” is something I hope to get into in a future post. You already know the refrain: Ricardian equivalence only happens if you live in a world of infinite identical psychopaths.) Graeber has internalized the Republican talking points about how this is money our grandchildren will owe to China; it’s nothing of the sort, and most of it we “owe” to ourselves. In a particularly baffling passage Graeber talks about how there are no protections for creditors of the US government, when creditors of the US government have literally never suffered a single late payment in the last 200 years. There are literally no creditors in the world who are more protected from default—and only a few others that reach the same level, such as creditors to the Bank of England.

In an equally-bizarre aside he also says in one endnote that “mainstream economists” favor the use of the gold standard and are suspicious of fiat money; exactly the opposite is the case. Mainstream economists—even the neoclassicists with whom I have my quarrels—are in almost total agreement that a fiat monetary system managed by a central bank is the only way to have a stable money supply. The gold standard is the pet project of a bunch of cranks and quacks like Peter Schiff. Like most quacks, the are quite vocal; but they are by no means supported by academic research or respected by top policymakers. (I suppose the latter could change if enough Tea Party Republicans get into office, but so far even that hasn’t happened and Janet Yellen continues to manage our fiat money supply.) In fact, it’s basically a consensus among economists that the gold standard caused the Great Depression—that in addition to some triggering event (my money is on Minsky-style debt deflation—and so is Krugman’s), the inability of the money supply to adjust was the reason why the world economy remained in such terrible shape for such a long period. The gold standard has not been a mainstream position among economists since roughly the mid-1980s—before I was born.

He makes this really bizarre argument about how because Korea, Japan, Taiwan, and West Germany are major holders of US Treasury bonds and became so under US occupation—which is indisputably true—that means that their development was really just some kind of smokescreen to sell more Treasury bonds. First of all, we’ve never had trouble selling Treasury bonds; people are literally accepting negative interest rates in order to have them right now. More importantly, Korea, Japan, Taiwan, and West Germany—those exact four countries, in that order—are the greatest economic success stories in the history of the human race. West Germany was rebuilt literally from rubble to become once again a world power. The Asian Tigers were even more impressive, raised from the most abject Third World poverty to full First World high-tech economy status in a few generations. If this is what happens when you buy Treasury bonds, we should all buy as many Treasury bonds as we possibly can. And while that seems intuitively ridiculous, I have to admit, China’s meteoric rise also came with an enormous investment in Treasury bonds. Maybe the secret to economic development isn’t physical capital or exports or institutions; nope, it’s buying Treasury bonds. (I don’t actually believe this, but the correlation is there, and it totally undermines Graeber’s argument that buying Treasury bonds makes you some kind of debt peon.)

Speaking of correlations, Graeber is absolutely terrible at econometrics; he doesn’t even seem to grasp the most basic concepts. On page 366 he shows this graph of the US defense budget and the US federal debt side by side in order to argue that the military is the primary reason for our national debt. First of all, he doesn’t even correct for inflation—so most of the exponential rise in the two curves is simply the purchasing power of the dollar declining over time. Second, he doesn’t account for GDP growth, which is most of what’s left after you account for inflation. He has two nonstationary time-series with obvious exponential trends and doesn’t even formally correlate them, let alone actually perform the proper econometrics to show that they are cointegrated. I actually think they probably are cointegrated, and that a large portion of national debt is driven by military spending, but Graeber’s graph doesn’t even begin to make that argument. You could just as well graph the number of murders and the number of cheesecakes sold, each on an annual basis; both of them would rise exponentially with population, thus proving that cheesecakes cause murder (or murders cause cheesecakes?).

And then where Graeber really loses me is when he develops his theory of how modern capitalism and the monetary and debt system that go with it are fundamentally corrupt to the core and must be abolished and replaced with something totally new. First of all, he never tells us what that new thing is supposed to be. You’d think in 400 pages he could at least give us some idea, but no; nothing. He apparently wants us to do “not capitalism”, which is an infinite space of possible systems, some of which might well be better, but none of which can actually be implemented without more specific ideas. Many have declared that Occupy has failed—I am convinced that those who say this appreciate neither how long it takes social movements to make change, nor how effective Occupy has already been at changing our discourse, so that Capital in the Twenty-First Century can be a bestseller and the President of the United States can mention income inequality and economic mobility in his speeches—but insofar as Occupy has failed to achieve its goals, it seems to me that this is because it was never clear just what Occupy’s goals were to begin with. Now that I’ve read Graeber’s work, I understand why: He wanted it that way. He didn’t want to go through the hard work (which is also risky: you could be wrong) of actually specifying what this new economic system would look like; instead he’d prefer to find flaws in the current system and then wait for someone else to figure out how to fix them. That has always been the easy part; any human system comes with flaws. The hard part is actually coming up with a better system—and Graeber doesn’t seem willing to even try.

I don’t know exactly how accurate Graeber’s historical account is, but it seems to check out, and even make sense of some things that were otherwise baffling about the sketchy account of the past I had previously learned. Why were African tribes so willing to sell their people into slavery? Well, because they didn’t think of it as their people—they were selling captives from other tribes taken in war, which is something they had done since time immemorial in the form of slaves for slaves rather than slaves for goods. Indeed, it appears that trade itself emerged originally as what Graeber calls a “human economy”, in which human beings are literally traded as a fungible commodity—but always humans for humans. When money was introduced, people continued selling other people, but now it was for goods—and apparently most of the people sold were young women. So much of the Bible makes more sense that way: Why would Job be all right with getting new kids after losing his old ones? Kids are fungible! Why would people sell their daughters for goats? We always sell women! How quickly do we flirt with the unconscionable, when first we say that all is fungible.

One of Graeber’s central points is that debt came long before money—you owed people apples or hours of labor long before you ever paid anybody in gold. Money only emerged when debt became impossible to enforce, usually because trade was occurring between soldiers and the villages they had just conquered, so nobody was going to trust anyone to pay anyone back. Immediate spot trades were the only way to ensure that trades were fair in the absence of trust or community. In other words, the first use of gold as money was really using it as collateral. All of this makes a good deal of sense, and I’m willing to believe that’s where money originally came from.

But then Graeber tries to use this horrific and violent origin of money—in war, rape, and slavery, literally some of the worst things human beings have ever done to one another—as an argument for why money itself is somehow corrupt and capitalism with it. This is nothing short of a genetic fallacy: I could agree completely that money had this terrible origin, and yet still say that money is a good thing and worth preserving. (Indeed, I’m rather strongly inclined to say exactly that.) The fact that it was born of violence does not mean that it is violence; we too were born of violence, literally millions of years of rape and murder. It is astronomically unlikely that any one of us does not have a murderer somewhere in our ancestry. (Supposedly I’m descended from Julius Caesar, hence my last name Julius—not sure I really believe that—but if so, there you go, a murderer and tyrant.) Are we therefore all irredeemably corrupt? No. Where you come from does not decide what you are or where you are going.

In fact, I could even turn the argument around: Perhaps money was born of violence because it is the only alternative to violence; without money we’d still be trading our daughters away because we had no other way of trading. I don’t think I believe that either; but it should show you how fragile an argument from origin really is.

This is why the whole book gives this strange feeling of non sequitur; all this history is very interesting and enlightening, but what does it have to do with our modern problems? Oh. Nothing, that’s what. The connection you saw doesn’t make any sense, so maybe there’s just no connection at all. Well all right then. This was an interesting little experience.

This is a shame, because I do think there are important things to be said about the nature of money culturally, philosophically, morally—but Graeber never gets around to saying them, seeming to think that merely pointing out money’s violent origins is a sufficient indictment. It’s worth talking about the fact that money is something we made, something we can redistribute or unmake if we choose. I had such high expectations after I read that little interchange about the IMF: Yes! Finally, someone gets it! No, you don’t have to repay debts if that means millions of people will suffer! But then he never really goes back to that. The closest he veers toward an actual policy recommendation is at the very end of the book, a short section entitled “Perhaps the world really does owe you a living” in which he very briefly suggests—doesn’t even argue for, just suggests—that perhaps people do deserve a certain basic standard of living even if they aren’t working. He could have filled 50 pages arguing the ins and outs of a basic income with graphs and charts and citations of experimental data—but no, he just spends a few paragraphs proposing the idea and then ends the book. (I guess I’ll have to write that chapter myself; I think it would go well in The End of Economics, which I hope to get back to writing in a few months—while I also hope to finally publish my already-written book The Mathematics of Tears and Joy.)

If you want to learn about the history of money and debt over the last 5000 years, this is a good book to do so—and that is, after all, what the title said it would be. But if you’re looking for advice on how to improve our current economic system for the benefit of all humanity, you’ll need to look elsewhere.

And so in the grand economic tradition of reducing complex systems into a single numeric utility value, I rate Debt: The First 5000 Years a 3 out of 5.