What is the best way to make sustained societal progress over time? Non-ideal theory done on its own faces the problem of second best, but ideal theory seems unable to cope with disagreement about how to make progress. If ideal theory gives up its claims to completeness, then we can use the method of incompletely theorized agreements to make progress over time.

Models of idealistic societies pervade the history of political thought from ancient times to the present. How can these models contribute to our thinking about political life in our non-ideal world? Not, as many political theorists have hoped, by performing a normative function -- by giving us reasons to accept particular political principles for the purpose of regulating our thought and behavior. Even still, idealistic models can sharpen our thinking about politics by performing a conceptual function -- by helping us (...) clarify and interpret the concepts we use to describe and evaluate political behavior and institutions. These insights point to a more incisive and judicious approach to political inquiry, in which explanatory and normative modes of thought are tightly intertwined. (The manuscript is under review. I have uploaded the table of contents, chapters 1 and 2, and the bibliography. Chapter summaries are available from my website.). (shrink)

This article provides a conceptual map of the debate on ideal and non‐ideal theory. It argues that this debate encompasses a number of different questions, which have not been kept sufficiently separate in the literature. In particular, the article distinguishes between the following three interpretations of the ‘ideal vs. non‐ideal theory’ contrast: (i) full compliance vs. partial compliance theory; (ii) utopian vs. realistic theory; (iii) end‐state vs. transitional theory. The article advances critical reflections on each of these sub‐debates, and highlights (...) areas for future research in the field. (shrink)

ABSTRACTThis essay brings Martha Nussbaum's politically liberal version of the Capabilities Approach to human development into critical dialogue with the Catholic Social Tradition. Like CST, Nussbaum's focus on embodiment, dependence and dignity entails a social use of property which privileges marginalized people, and both theories explain the underdevelopment of central human capabilities in social rather than exclusively material terms. Whereas CST is metaphysically and theologically ‘thick', however, CA is ‘thin’: its proponents positively eschew metaphysical commitments, believing a commitment to quasi-Rawlsian (...) ‘overlapping consensus' is more consistent with political liberalism. This creates two tensions between CA and CST. The first is that CST understands the internal virtues of essentially social practices to be inseparable from their concrete instantiation in actual communities, while CA sometimes describes these virtues as political entitlements which can be supported independently o... (shrink)

Is it necessary to have an ideal of perfection in mind to identify and evaluate true biotechnological human “enhancements”, or can one do without? To answer this question we suggest employing the distinction between ideal and non-ideal theory, found in the debate in political philosophy about theories of justice: the distinctive views about whether one needs an idea of a perfectly just society or not when it comes to assessing the current situation and recommending steps to increase justice. In this (...) paper we argue that evaluating human enhancements from a non-ideal perspective has some serious shortcomings, which can be avoided when endorsing an ideal approach. Our argument starts from a definition of human enhancement as improvement, which can be understood in two ways. The first approach is backward-looking and assesses improvements with regard to a status quo ante. The second, a forward-looking approach, evaluates improvements with regard to their proximity to a goal or according to an ideal. After outlining the limitations of an exclusively backward-looking view, we answer possible objections against a forward-looking view. Ultimately, we argue that the human enhancement debate would lack some important moral insights if a forward-looking view of improvement is not taken into consideration. (shrink)

Journal of Political Philosophy, Volume 30, Issue 2, Page 249-270, June 2022.

This paper examines and rejects two normative justifications for low-fee private schools, whose expansion throughout the Global South in recent years has been significant. The first justification – what I shall call the ideal thesis – contends that LFPS are the best mechanism to expand access to quality education, particularly at the primary level, and that the premise of their success is that they reject educational equality and state intervention in educational affairs, traditionally associated with public schools, embracing instead educational (...) adequacy and unregulated markets for education. Against this thesis, the paper argues that an ideal educational arrangement must not do away with educational equality and some degree of state interference. The other justification for LFPS – the secondbest thesis – contends that although LFPS do not represent the ideal state of affairs, they nonetheless bring us a step closer to the ideal of universal primary education; they are a ‘realistic’ approximation to that goal. Against the second-best thesis, the paper argues that this justification commits the approximation fallacy: by deviating from the ideal educational arrangement LFPS may obstruct rather than facilitate its achievement. (shrink)

Eva Erman and Niklas Möller have recently presented a trenchant critique of my (2015) argument that ideal normative theories are uninformative for certain practical purposes. Their criticisms are largely correct. In this note, I develop the ideas behind my earlier argument in a way that circumvents their critique and explains more clearly why ideal theory is uninformative for certain purposes while leaving open the possibility that it might be informative for other purposes.