Here, I explain what’s wrong with “ideal theory” in political philosophy.* [ *Based on: “Confessions of a Utopophobe”, Social Philosophy and Policy 33 (2016): 214-34. ] I. Ideal TheoryIn political philosophy, there is some debate about the relative merits of “ideal” versus “non-ideal theory”. Ideal theory is described in two different ways (sometimes confused with each other):
Sometimes, the distinction is applied just to theorizing about justice, where the ideal theorist is said to choose principles of justice based on the assumption of perfect compliance, or to be describing the perfectly just society. ExamplesJohn RawlsIn his original position thought experiment, Rawls imagines the parties in the O.P. choosing the principles to govern their society, on the assumption that whatever principles are chosen will be perfectly followed. He also thinks the result tells us what would happen in a perfectly just society. So, when the parties decide that the state should distribute wealth in the way that most benefits the poorest people, they imagine that the government will know how to do that, they will want to do it, there won’t be special interest groups trying to manipulate the wealth redistribution system for their own benefit, people won’t cheat the welfare system by lying about their income, etc. They get to assume all that, not because it’s true, but because Rawls stipulates that we’re doing ideal theory. Joseph CarensCarens came up with a way to make socialism work: Everyone gets taxed such that their pre-tax incomes are equal. In addition, however, suppose that everyone just voluntarily works their hardest to try to maximize their pre-tax income (despite getting no monetary reward for this), out of concern for the good of society. Don’t say that’s unrealistic, because we’re doing ideal theory now. That is what should happen, even if it’s highly unlikely that it will happen. G.A. CohenCohen imagines a friendly, socialist camping trip, in which everyone voluntarily shares all resources, and everyone cooperates for the common good. No one expects to get extra rewards for giving benefits to the group, because they’re all friends. This is how society should work. If you complain that this is unrealistic, you’re confusing “should” with “would”. Jason BrennanBrennan responds to Cohen by imagining a friendly, capitalist society in which everyone voluntarily trades with each other, everyone respects each other’s rights, and the poor are fine because people voluntarily contribute to charity to help anyone in need. If you complain that this isn’t how real capitalist societies work, you are again confusing “should” with “would”. II. Why Ideal Theory?Why do some philosophers consider ideal theory interesting or useful? A. “Ideal Theory Sets the Goal”Some say that we have to do ideal theory first, so that we know what goals we are aiming at. Once we know that, we will do some non-ideal theory to figure out how to achieve those aims. Rawls:
Stemplowska & Swift:
Reply: You don’t have to describe the perfect society in order to pursue a useful goal. You can work to reduce particular injustices without knowing what a Perfect Society or Perfect Justice is like. There is no reason to think that doing this would prevent you from attaining societal perfection. Analogy: Your car has a flat tire. You can try to change the tire without first articulating the nature of the Perfect Car. Indeed, discussing what the Perfect Car would be like would be a useless distraction. Nor is there any reason to think that changing the tire would somehow prevent you from attaining vehicular perfection later. B. “Ideal Theory Defines Justice”Maybe I have begged the question by assuming that we can identify particular injustices without a theory of justice. Maybe “injustice” just denotes a departure from perfect justice, and thus we need to know what perfect justice is before we can identify any particular injustices. A. John Simmons:
Reply: We don’t need a theory of perfection in order to identify problems in any other area:
There’s no obvious reason why justice should be different. C. “Ideal Theory Enables Comparisons”Maybe we need ideal theory to know which injustices are worse than which. John Simmons again:
Reply: We don’t need a theory of perfection to compare problems, either. E.g.,
D. “Today’s Utopia Is Tomorrow’s Reality”Humanity has seen dramatic progress over the course of history. For most of history, if someone had described a society like our current society, they would have been dismissed as utopian. So it’s likely that future societies will be much better still. So it makes sense for us to aim high in planning for the future. Maybe we will one day have something close to a perfect society! Reply: The first part is true: the future will probably be vastly better than the present. But that doesn’t mean that we can usefully theorize about a distant future society that is nearly perfect. Compare: Suppose some political philosopher back in 1500 A.D. wrote some treatises about what society should be like in the 21st century, including recommendations for how society should be run, what institutions and policies we should have, etc. Without knowing any details, how useful would you think the 1500 A.D. philosopher’s plans would be to us? I think the reasonable answer is, “Completely useless.” Maybe they’d be of historical interest. But no one would dream of trying to use them. That is how people in 500 years will look at anything we write today about what society should be like in the distant future. Except that our treatises will be even more useless, because society will probably change even more in the next 500 years, because the pace of change has been increasing. Compare: Perhaps one day we will have flying cars with antigravity technology. But thinking about this possibility is of no use when your actual car has a flat tire. Similarly, it is not useful to think about a possible future society in which socialism would work.* [ *Why isn’t thinking about anarcho-capitalism similarly useless? Briefly, I think an-cap is much less utopian than socialism, because it does not require any changes to human nature to work. ] E. Strict Compliance TheoryThe above discussion concerned perfection theory. What about Strict Compliance Theory, the idea that we should choose political principles based on their consequences in a world of perfect compliance? This is an importantly different idea. Rawls asserts it, but I don’t see any argument for it. Consider two examples:
What matters is the effects of a policy in a world with realistic levels of compliance, not its effects in a world of perfect people. There’s no obvious reason why the principles of justice should work differently. ApproximationIn science, people sometimes use idealizations; e.g., ignoring air resistance in computing the trajectory of a projectile. This is because the idealization is an approximation to reality (e.g., because it is known that the effect of air resistance is small). It is not done in cases where the idealization would not approximate reality. In the political case, is the “idealization” of a world of perfect compliance at least an approximation to reality? No, it isn’t. Of particular interest to Rawls, the assumptions that government agents have perfect knowledge of and desire to implement the distribution that maximizes the welfare of the poor, and that no one will try to game the system for personal advantage, are not approximations to reality. They are utterly false, and that makes a huge difference to what we should do. III. Utopian IllusionsIdeal theorists are prone to three big mistakes. A. Agentless NormsNorms require agents: It cannot be true that A should be done unless there is some particular agent who should do it. Ideal theorists often disregard this, e.g., by talking about what “society” should do. (Society isn’t an agent, so there’s nothing that it “should” do.) E.g., Carens says that we should have a system wherein everyone maximizes their pretax income, while the state enforces equal after-tax incomes. But there is no agent who can bring this about. The state can’t bring it about, since they can’t make all the citizens pure altruists. No citizen can bring it about, since they can’t make their compatriots altruists. And “society” can’t do it, because society isn’t an agent. B. Crazy StandardsThere is such a thing as too much altruism. E.g., suppose a healthy patient in the hospital wants to donate his heart, lungs, and both kidneys to other patients. We would not say, “That’s wonderful, let’s schedule the surgery!” We would conclude that he was crazy.* [ *See the episode of House, M.D., “Charity Case”. ] That’s similar to (though more extreme than) Carens’ (or the socialists’) idea of the people who just selflessly work for the good of society. That isn’t consistent with a normally functioning human motivational system. C. Excess AbstractionFrequently, ideal theorists such as Rawls try to arrive at political conclusions by starting from general, abstract principles, like “it’s unjust that people have unequal resources due to morally arbitrary differences between them.” This is a highly unreliable way of forming conclusions, because philosophers are almost always wrong about abstract, general principles. Instead, a better approach is to start from widely-shared, strong ethical intuitions about concrete cases, then draw analogies from these cases to more controversial cases. (Examples: (a) The Starving Marvin analogy for immigration; the killer’s accomplice example for gun control, discussed in my other papers.) |