Following Nancy Cartwright and others, I suggest that most (if not all) theories incorporate, or depend on, one or more idealizing assumptions. I then argue that such theories ought to be regimented as counterfactuals, the antecedents of which are simplifying assumptions. If this account of the logic form of theories is granted, then a serious problem arises for Bayesians concerning the prior probabilities of theories that have counterfactual form. If no such probabilities can be assigned, the the posterior probabilities will (...) be undefined, as the latter are defined in terms of the former. I argue here that the most plausible attempts to address the problem of probabilities of conditionals fail to help Bayesians, and, hence, that Bayesians are faced with a new problem. In so far as these proposed solutions fail, I argue that Bayesians must give up Bayesianism or accept the counterintuitive view that no theories that incorporate any idealizations have ever really been confirmed to any extent whatsoever. Moreover, as it appears that the latter horn of this dilemma is highly implausible, we are left with the conclusion that Bayesianism should be rejected, at least as it stands. (shrink)

According to Idealism, every fundamental entity is conscious, and moreover every fundamental property is a phenomenal property. The goal of this chapter is to defend “Modal Idealism,” which is the thesis that Idealism is metaphysically necessary. In particular, I give four different arguments for Modal Idealism. First, I argue that, if at least some possible fundamental properties are phenomenal properties, then the denial of Modal Idealism leads to implausible brute necessities. Second, I argue that those who endorse the Eleatic Principle, (...) according to which it is necessary that all concrete objects have causal powers, should endorse Modal Idealism. Third, I argue that Modal Idealism helps us secure our knowledge of our own conscious states in the face of influential “debunking” arguments. Fourth, I argue that Modal Idealism is theoretically fruitful: it allows us to make substantial progress on several perennial metaphysical debates beyond the philosophy of mind. (shrink)

ABSTRACT According to edenic idealism, our ordinary object terms refer to items in the manifest world—the world of primitive objects and properties presented in experience. I motivate edenic idealism as a response to scenarios where it is difficult to match the objects in experience with corresponding items in the external world. I argue that edenic idealism has important semantic advantages over realism: it is the most intuitive view of what we are actually talking about when we use terms for objects.

In this paper, I first outline the view developed in my recent book on the role of idealization in scientific understanding. I discuss how this view leads to the recognition of a number of kinds of variability among scientific representations, including variability introduced by the many different aims of scientific projects. I then argue that the role of idealization in securing understanding distances understanding from truth, but that this understanding nonetheless gives rise to scientific knowledge. This discussion will clarify how (...) my view relates to three other recent books on understanding by Henk de Regt, Catherine Elgin, and Kareem Khalifa. (shrink)

Political philosophers frequently claim that political ideals can provide normative guidance for unjust and otherwise nonideal circumstances. This is mistaken. This paper demonstrates that political ideals contribute nothing to our understanding of the normative principles we should satisfy amidst unjust or otherwise nonideal circumstances.

Cognitive scientists speak of codes, signals, encoding, decoding, computation, representation, and information-processing. The orthodox view is to take talk of neuronal signaling and computational processes over mental representations literally – as truth-conditioned descriptions of brain and cognitive activity. Mental fictionalism challenges the orthodox view. Mental fictionalism is, broadly speaking, the view that talk about mental representation is a useful fiction. Many mental fictionalists motivate this view by an analogy with how scientists make use of idealization techniques in model-based sciences such (...) as physics. I assume, without argument, that discourse about mental representation in cognitive science is fictional. However, I argue that it is not a useful fiction because fictional discourse about mental representation fails to be genuinely explanatory. It fails to be genuinely explanatory because idealized posits such as mental representation are functionally disanalogous to useful idealizations in other sciences such as biology and physics. (shrink)

Recent methodological debates regarding the place of feasibility considerations in normative political theory are hindered for want of a rigorous model of the feasibility frontier. To address this shortfall, I present an analysis of feasibility that generalizes the economic concept of a production possibility frontier and then develop a rigorous model of the feasibility frontier using the familiar possible worlds technology. I then show that this model has significant methodological implications for political philosophy. On the Target View, a political ideal (...) presents a long-term goal for morally progressive reform efforts and, thus, serves as an important reference point for our specification of normative political principles. I use the model to show that we can- not reasonably expect that adopting political ideals as long-term reform objectives will guide us toward the realization of morally optimal feasible states of affairs. I conclude by proposing that political philosophers turn their attention to the analysis of actual social failures rather than political ideals. (shrink)

I develop a nontheistic (quasi-)Berkeleyan idealism. The basic strategy is to peel away the attributes of God that aren't essential for role he plays in idealist metaphysics. God's omnibenevolence, his desires, intentions, beliefs, his very status as an agent ... aren't relevant to the work he does. When we peel all these things away, we're left with a view on which reality is a vast unity of consciousness, weaving together sensory experiences of colors, shapes, sounds, sizes, etc. into the trees, (...) electrons, black holes, and central nervous systems that fill the world around us. This phenomenal unity is governed by laws analogous to those posited by materialists, governing the unfolding of reality. I argue that if reality is fundamentally phenomenal in this way, we can give a unique account of perception that robustly captures direct realist intuitions of reality forming the "constituents" of our experiences: In perception, our finite unities of consciousness come to literally overlap with the unity of consciousness that is reality. I assess the unique virtues and challenges such a view faces, paying particular attention to the question of whether idealism entails a profligacy of physical laws. (shrink)

The Ideal Worlds objection is an objection that purports to identify a potentially fatal flaw in some of our most influential moral theories: including, among others, rule consequentialism, Kant's Law of Nature Formula of the Categorical Imperative and Scanlonian contractualism. In this article, I offer an account of the objection, a survey of some of the ways defenders of affected theories have sought to avoid it, and the problems that those responses can encounter.

Political theorists have found themselves embroiled in numerous methodological debates, many of which concern the merits of ideal theory. While existing literature surveys expose the varied meanings of "ideal theory," the current situation makes it hard to see what's at stake in these debates or how to make progress. To address this situation, I survey ideal theory debates to highlight their *modularity*: they cover a range of issues that should be analyzed separately, and the results of these analyses can be (...) combined in various ways according to one's theoretical purposes. I then propose that theorists can make progress by disaggregating these debates into component tasks and tools. This "tasks-and-tools framework" clarifies the broader significance of ideal theory debates: they compose a family of debates about whether core theoretical tasks should adopt an idealistic orientation and about the proper uses of a familiar kind of theoretical tool I call "idealistic model scenarios." This framework also fosters a pluralistic approach to political theory that emphasizes choosing tools based on their effectiveness for pursuing particular tasks. (shrink)

This Element provides an opinionated survey of the ideal and non-ideal theory debate in political philosophy. It adopts a minimal conception of ideal theory as “theorizing that aims to characterize ideal or perfect justice” and then investigates four major questions. First, does ideal theory provide a benchmark for evaluating what is more just than what? Second, does it provide a target for long-term reform? Third, does it provide a gauge of appropriate or permissible responses to injustice? Fourth, to what extent (...) should we do ideal theory? The core message is that ideal theory is not uniquely or especially well suited to serving these roles, and deserves no pride of place in the discipline. Nevertheless, ideal theory is somewhat valuable and it should remain one active research program among many. Connections to related debates beyond political philosophy are briefly explored. This title is also available as Open Access on Cambridge Core. (shrink)

This thesis articulates an analytic version of the ontology of idealism, according to which universal phenomenal consciousness is all there ultimately is, everything else in nature being reducible to patterns of excitation of this consciousness. The thesis’ key challenge is to explain how the seemingly distinct conscious inner lives of different subjects—such as you and me—can arise within this fundamentally unitary phenomenal field. Along the way, a variety of other challenges are addressed, such as: how we can reconcile idealism with (...) the fact that we all inhabit a common external world; why this world unfolds independently of our personal volition or imagination; why there are such tight correlations between measured patterns of brain activity and reports of experience; etc. The core idea of this thesis can be summarized thus: we, as well as all other living organisms, are dissociated alters of universal phenomenal consciousness, analogously to how a person with Dissociative Identity Disorder (DID) manifests multiple disjoint centers of subjectivity also called ‘alters.’ We, and all other living organisms, are surrounded by the transpersonal phenomenal activity of universal consciousness, which unfolds beyond the dissociative boundary of our respective alter. The inanimate world we perceive around us is the extrinsic appearance—i.e. the phenomenal image imprinted from across our dissociative boundary—of this activity. The living organisms we share the world with are the extrinsic appearances of other alters. (shrink)

This article surveys some of the most influential Buddhist arguments in defense of idealism. It begins by clarifying the central theses under dispute and rationally reconstructs arguments from four major Buddhist figures in defense of some or all of these theses. It engages arguments from Vasubandhu’s Viṃśikā and Triṃśikā; Dignāga’s matching-failure argument in the Ālambanaparīkṣā; the sahopalambhaniyama inference developed by Dharmakīrti; and Xuanzang’s weird but clever logical argument that intrigued philosophers in China and Japan. It aims to clarify what is (...) being argued and motivate these arguments in terms of their presuppositions. These presuppositions range from views about the nature of mind and metaphysics to epistemology and logic. By making this context explicit, this article introduces central ideas in Buddhist philosophy and suggests ways in which they were mobilized in support of an idealist conclusion. (shrink)

Charles W. Mills developed an argument against ideal theorizing that is inspired by the early writings of Marx and Engels. He argues that the development and refinement of non-ideal theories contributes more to ending oppressive power structures than the development and refinement of ideal theories. For this reason, he concludes that ideal theories play the role of an ideology. In this article, I expose a yet undiagnosed weakness of this argument: I point out that history is rife with examples of (...) political organizations that struggle to identify an effective political practice because they find themselves in a situation of theoretical crisis. Thus, contra Mills, it turns out that ideal theorizing is sometimes a more viable strategy to end oppressive power structures than non-ideal theorizing. So, if we accept the basic premises of Mills’s argument, it turns out that non-ideal theorizing should be classified as an ideology as well. To further corroborate this claim, I point out some problems for Mills’s interpretation of Marx and Engels. If my assessment is right, then it turns out to be unclear if the intellectual authorities that Mills invokes actually lend support to his critique of ideal theorizing. (shrink)

When we admire a person, we don’t just have a wow-response towards them, as we might towards a painting or a sunset. Rather, we construe them as realizing an ideal of the person in their lives to a conspicuous degree. To merit admiration, it is not enough simply to do something valuable or to possess desirable character traits. Rather, one’s achievements must manifest commitments and character traits that define a worthwhile ideal. Agential admiration, I argue, is a person-focused attitude like (...) shame, contempt, and hubristic pride, not an act-focused one like gratitude or guilt, not to mention mere evaluation as excellent. Given its holistic focus, its motivational effects permeate our interactions with its target, who is construed as an exemplar. Consequently, even if someone is admirable in some way, admiring them may be all-things-considered inappropriate, if they fall short of other ideals that we ought to care about. (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.

Numerous philosophers allege that the "general theory of second best" (Lipsey and Lancaster, 1956) poses a challenge to the Target View, which asserts that real world reform efforts should aim to establish arrangements that satisfy the constitutive features of ideal just states of affairs. I demonstrate two claims that are relevant in this context. First, I show that the theory of second best fails to present a compelling challenge to the Target View in general. But, second, the theory of second (...) best requires ideal theorists to undertake certain kinds of causal and comparative analyses that are typically thought to lie beyond the borders of conventional ideal theory. (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)

In 2005, Charles Mills published “‘Ideal Theory’ as Ideology” in Hypatia: a withering critique of much of contemporary political philosophy and ethics. For Mills such work in philosophy failed to attend to the realities of social life and politics, and in remaining silent on actual issues of domination and oppression served an ideological role in supporting the interests of white bourgeois men. Around the time that Charles Mills launched his broadside against ideal theory, trans theorists had been fighting their own (...) battle against the abstraction of theory from the realities of trans lives and oppression. Vivian Namaste (2000) and Jay Prosser (1998) argued that contemporary gender theory failed to justice to the actuality of trans life, retreating instead to understanding trans life through literary archetypes and idealized radical figures. In this chapter I’ll compare Mills’ critique of ideal theory with the transfeminist critique of 1990s gender theory, arguing that they share much in common. Centrally, both critiques share an underlying commitment to theory needing to be grounded in the actuality of oppression and power relations. This common thread, I suggest, must continue to guide transfeminist thought and action: contra Marquis Bey (2022) transfeminist thought and praxis must continue to be about trans lives, about the oppression of trans women, and about ways of actually achieving liberation from our current dire position. (shrink)

In her ‘On the apparent paradox of ideal theory’, Laura Valentini combines three supposedly plausible premises to derive the paradoxical result that ideal theory is both unable to, and indispensable for, guiding action. Her strategy is to undermine one of the three premises by arguing that there are good and bad kinds of ideal theory, and only the bad kinds are vulnerable to the strongest version of their opponents’ attack. By undermining one of the three premises she releases ideal theorists (...) from the paradox, which is as follows. (1) Any sound theory of justice is action-guiding. (2) Any sound theory of justice is ideal. (3) Any ideal theory fails to be action-guiding. Here I shall respond to Valentini in two ways. First, I shall show that both (1) and (2) are false. The falsity of either is sufficient to release ideal theorists from the paradox. Second, I shall show that Valentini’s response to (3) can be extended, because her bad kinds of ideal theory do not necessarily fail to guide action. The cumulative effect of my arguments further strengthens Valentini’s support of ideal theory. I will deal with premises (1) and (2) in Sections I and II, and (3) in Section III. (shrink)

Based on three recently published books on climate justice, this article reviews the field of climate ethics in light of developments of international climate politics. The central problem addressed is how idealised normative theories can be relevant to the political process of negotiating a just distribution of the costs and benefits of mitigating climate change. I distinguish three possible responses, that is, three kinds of non-ideal theories of climate justice: focused on (1) the injustice of some agents not doing their (...) part; (2) the policy process and aiming to be realistic; and (3) grievances related to the transition to a clean-energy economy. The methodological discussion underpinning each response is innovative and should be of interest more generally, even though it is still underdeveloped. The practical upshot, however, is unclear: even non-ideal climate justice may be too disconnected from the fast-moving and messy climate circus. (shrink)

Models allow us to expose, explore, and excavate our assumptions. This is especially true for the sorts of assumptions that concern scholars of marginalization and resistance, who aim to show how patriarchy, colonialism, and related structures shape our lives. Yet within this scholarship, there is a recurrent skepticism toward practices of modeling, particularly formal or idealizing practices. These critiques portray modeling as anything from necessarily sexist to perniciously universalizing to oppressive. I argue that while these claims are mistaken, they nevertheless (...) share a crucial and under-appreciated undercurrent: alienation. I argue that alienation provides a more fundamental and more precise framework for evaluating modeling practices. This reframing clarifies the normative stakes of exclusionary modeling while preserving formal techniques for the projects that they are especially well-positioned to promote: exposing entrenched assumptions, resisting “obfuscatory accommodation”, and facilitating engagement across epistemic and political divides. (shrink)

This paper argues that causal idealism, the view that causation is a product of mental activity, should be considered a competetitor to contemporary views that incorporate human thought and agency into the causal relation. Weighing contextualism, contrastivism, or pragmatism about causation against causal idealism results in at least a tie with respect to the virtues of these theories.

This essay is an attempt to explain Kantian transcendental idealism to contemporary metaphysicians and make clear its relevance to contemporary debates in what is now called ‘meta-metaphysics.’ It is not primarily an exegetical essay, but an attempt to translate some Kantian ideas into a contemporary idiom.

This paper argues that engaging in a ubiquitous form of rational inquiry commits us to an epistemic form of Explanatory Idealism: the claim that any rational (human) inquirer can access every explanation.

This special issue is about ideal and non–ideal theory in epistemology. The impetus behind it was a book one of us published in 2023, Non-Ideal Epistemology (McKenna 2023). The aim of this book was...

It is a very curious thing that proponents of Idealism have considered it to be a satisfactory counter to ‘scepticism’, ‘nihilism’, and the like. On the contrary, it seems to me that Idealism is a very close cousin to ‘brain-in-a-vat’ scepticism and other anti-naturalistic fantasies. Moreover, it seems to me that Idealism is inferior to Naturalism for much the same kinds of reasons that ‘brain-in-a-vat’ scepticism and other anti-naturalistic fantasies are inferior to Naturalism: a proper weighing of theoretical virtues discloses (...) that Naturalism is the most virtuous worldview. (shrink)

In manuscripts of 1930-1 Johannes Daubert, principal member of the Munich board of realist phenomenologists, put forward a series of detailed criticisms of the idealism of Husserl’s Ideas I. The paper provides a sketch of these criticisms and of Daubert’s own alternative conceptions of consciousness and reality, as also of Daubert’s views on perception, similar, in many respects, to those of J. J. Gibson.

The space of possible worlds is vast. Some of these possible worlds are materialist worlds, some may be worlds bottoming out in 0s and 1s, or other strange things we cannot even dream of… and some are idealist worlds. From among all of the worlds subjectively indistinguishable from our own, the idealist ones have uniquely compelling virtues. Idealism gives us a world that is just as it appears; a world that’s fit to literally enter our minds when we perceive it. (...) If the world is an idealist world, we live in a perceptual Eden. We did not fall from Eden. Rather, we deluded ourselves into believing that we couldn’t possibly live in Eden when we committed to materialism. Reflecting on these big-picture issues gives us reason to question this commitment and embrace a radically new account of reality and our relation to it. (shrink)

There is a question of whether de-idealization is needed for justified use of -- for 'checking' -- idealizations. We argue that the standard philosophical account of de-idealization has become too idealized, but that this does not preclude the possibility of justificatory practices which show how models can be used to make inferences about the world. In turn, motivated by examples in physics, we provide a more expansive and practice-driven account of de-idealization by relaxing the standards for closeness to more (...) realistic theoretical items, identifying at least three kinds of procedures for de-idealization: intra-model, inter-model, and measurement de-idealizations. These examples highlight how idealizations can be -- and indeed have been -- scrutinized within physics without appealing to the philosopher's idealized notion of de-idealization. (shrink)

Kant scholarship often refers to transcendental idealism as a ‘theory.’ Kant’s project, however, is not easily reconciled with that term in its current use. This paper contends that his critique and idealism should be seen as a remedial response against our natural albeit confused prejudice of transcendental realism. Kant’s idealism articulates a ‘metametaphysical’ ethos that is supposed to provide a new grounding of metaphysics by proceeding ‘from the human standpoint:’ it aims to dispel the temptation of transcendental realism in favor (...) of a resolute inhabitation of, and contentment with, our own humanity. This project comes under pressure in post-Kantianism: Fichte is among the first to voice the worry that Kant’s critique is well-intentioned, but not well-executed. His concern is that, while it ‘bring[s] man into harmony with himself,’ this mere contentment with our own humanity will not suffice to achieve the scientificity that, by Kant’s own lights, is the mark of any promising metaphysics. Fichte’s charge is that Kant’s idealism, in its very confinement to the brute facts of the human condition, surrenders itself to unacceptable contingency or ‘facticity.’ The paper explores Kant’s idealist project of grounding metaphysics, Fichte’s facticity charge against it, and whether Kantian idealism can withstand it. (shrink)

Implicit in feminist and other critiques of ideal theorizing is a particular view of what normative theory should be like. Although I agree with the rejection of ideal theorizing that oppression theorists (and other theorists of justice) have advocated, the proposed alternative of nonideal theorizing is also problematic. Nonideal theorizing permits one to address oppression by first describing (nonideal) oppressive conditions, and then prescribing the best action that is possible or feasible given the conditions. Borrowing an insight from the "moral (...) dilemmas debate"— namely that moral wrongdoing or failure can be unavoidable—I suggest that offering (only) action-guidance under non-ideal conditions obscures the presence and significance of unavoidable moral failure. An adequate normative theory should be able to issue a further, non-action-guiding evaluative chim, namely that the best that is possible under oppressive conditions is not good enough, and may constitute a moral failure. I find exclusively action-guiding nonideal theory to be both insufficiently nonidealizing (because it idealizes the moral agent by falsely characterizing the agent as always able to avoid moral wrongdoing) and meanwhile too strongly adapted to the nonideal (because normative expectations are lowered and detrimentally adapted to options that, while the best possible, are still unacceptable). (shrink)

Morally speaking, what should one do when one is morally uncertain? Call this the Moral Uncertainty Question. In this paper, I argue that a non-ideal moral theory provides the best answer to the Moral Uncertainty Question. I begin by arguing for a strong ought-implies-can principle---morally ought implies agentially can---and use that principle to clarify the structure of a compelling non-ideal moral theory. I then describe the ways in which one's moral uncertainty affects one's moral prescriptions: moral uncertainty constrains the set (...) of moral prescriptions one is subject to, and at the same time generates new non-ideal moral reasons for action. I end by surveying the problems that plague alternative answers to the Moral Uncertainty Question, and show that my preferred answer avoids most of those problems. (shrink)

Kant famously argues that transcendental idealism allows us to solve the problem of free will. The basic outlines of the solution are as follows: while freedom and determinism are incompatible, we can consistently predicate them of one and the same being if we take the former to be a quality of the human being as it is in itself and the latter a quality of the human being as it appears. In this paper, I look at three different readings of (...) transcendental idealism—the two-object reading, the two-property reading, and the epistemological reading—and argue that none of them—at least in their standard forms—are able to make sense of this solution. I then draw on my alternative, semantic reading of transcendental idealism to propose a new way of understanding Kant's solution. (shrink)

Structural idealism uses formal and computational techniques to describe an idealist ontology composed of God and a set of finite minds. A finite mind is a system of private intentional worlds. An intentional world is a connectionist hierarchy of intentional objects (propositions, concepts, sensible things, sensations). Intentional objects, similar to Leibnizian monads, are computing machines. To escape the egocentric predicament, Leibnizian relations of (in)compossibility exist between finite minds, linking them together into a constraint-satisfaction network, thereby coordinating their private intentional worlds.

I consider statistical criteria of algorithmic fairness from the perspective of the ideals of fairness to which these criteria are committed. I distinguish and describe three theoretical roles such ideals might play. The usefulness of this program is illustrated by taking Base Rate Tracking and its ratio variant as a case study. I identify and compare the ideals of these two criteria, then consider them in each of the aforementioned three roles for ideals. This ideals program may present a way (...) forward in the normative evaluation of candidate statistical criteria of algorithmic fairness. (shrink)

In contrast to a stereotypical account of Indian philosophy that are entailments of the interpreter’s beliefs (an approach that violates basic standards of reason), an approach to Indian philosophy grounded on the constraints of formal reason reveals not only a wide spread disagreement on dharma (THE RIGHT OR THE GOOD), but also a pervasive commitment to the practical foundation of life’s challenges. The flip side of this practical orientation is the criticism of ordinary experience as erroneous and reducible to the (...) agent’s mental states. If we ignore the background practical orientation in Indian philosophy, this seems not like an error theory, that I call Ironic Idealism, but as a defense of idealism. I consider salient candidates for Indian Idealism (Advaita Vedānta, Yogācāra Buddhism, Kāśmīra Śaivism and the Yogavāsiṣṭha) and note that these positions continue a theme in Indian philosophy of articulating Ironic Idealism. Ironic Idealism depends upon the very Indian distinction between ultimate and provisional truth, and Ironic Idealism criticizes the mundane, provisional sort of "truth" as psychological and mental --- and ultimately false. Interpretation, the common approach to the study of Indian philosophy, is an example of what Ironic Idealism criticizes. This explains why authors incorrectly find Idealism everywhere in Indian thought. (shrink)

Machine learning (ML) models are increasingly discussed in the philosophy of science in terms of idealization and even by analogy with toy models. I argue that this framing conflates idealization with approximation. Once the relevant ML target is specified as relations among features represented in data---relative to a target system---the claim that ML models are dissimilar to their targets becomes too coarse. Scientific ML models can and often must be approximately similar to their targets in the relevant respects. Approximation failure (...) therefore provides the more direct standard of assessment, and ML models do not function as toy models. (shrink)

Does rationality require logical omniscience? Our best formal theories of rationality imply that it does, but our ordinary evaluations of rationality seem to suggest otherwise. This paper aims to resolve the tension by arguing that our ordinary evaluations of rationality are not only consistent with the thesis that rationality requires logical omniscience, but also provide a compelling rationale for accepting this thesis in the first place. This paper also defends an account of apriori justification for logical beliefs that is designed (...) to explain the rational requirement of logical omniscience. On this account, apriori justification for beliefs about logic has its source in logical facts, rather than psychological facts about experience, reasoning, or understanding. This account has important consequences for the epistemic role of experience in the logical domain. In a slogan, the epistemic role of experience in the apriori domain is not a justifying role, but rather an enabling and disabling role. (shrink)

I argue that advocates of moderate epistemic idealization need some standards against which they can determine whether a particular individual P has a responsibility to acquire some specific piece of information α. Such a specification is necessary for the purpose of determining whether a reason R, the recognition of which depends on accounting for α, can legitimately be ascribed to P. To this end, I propose an initial sketch of a criterion that may be helpful in illuminating the conditions in (...) which P might be said to have a responsibility to take α into account when searching for reasons to act or believe. I worry that reason ascriptions that are based on information acquisition expectations which are not captured by this criterion may be open to charges of authoritarianism, especially when such a reason ascription prompts one person to demand that another act in a way that is responsive to the ascribed reason. (shrink)

What should we do when we won't do as we ought? Suppose it ought to be that the procrastinating professor accept the task of reviewing a book, and actually review the book. It seems clear that given he won't review it, he ought not to accept the task. That is a genuine moral obligation in light of less than perfect circumstances. I want to entertain the possibility that a set of such obligations form something like a 'practical morality'; that which (...) we ought to do given that we're unlikely or unwilling to do much of what ideal morality demands. If it is possible to give a coherent account of these kinds of obligations, then it is possible to entertain the idea that these obligations are in fact what morality demands. The conceptual truths about justice (good, right, fairness) that come from ideals are one thing; the actions that morality demands of people given their actual circumstances are quite another. In this paper I will ask about the kinds of facts that can be used to establish a more circumscribed set of obligations than we get from the orthodox view about moral obligation. (shrink)

This essay involves exploration of certain repercussions of Bernard Williams’ view that there is, in Wittgenstein’s later work, a transcendental idealism akin to that found in the Tractatus—sharing with it the feature that it cannot be satisfactorily stated. It is argued that, if Williams is right, then Wittgenstein’s later work precludes a philosophically substantial theory of meaning; for such a theory would force us to try to state the idealism. In a postscript written for the reprint of the essay, reasons (...) are given for thinking that Williams is not right: Wittgenstein’s later work actually helps us to repudiate as ill-conceived all those questions whose answers invite us to embrace any such idealism. But the main thesis of the essay remains intact. Indeed the idea that Wittgenstein’s later work precludes a philosophically substantial theory of meaning is reinforced. (shrink)

Contemporary debates about ideal and nonideal theory rest on an underlying consensus that the primary practical task of political theory is directing action. This overlooks other urgent practical work that theory can do, including showing how injustice can be made bearable and how resisting it can be meaningful. I illustrate this important possibility by revisiting the purpose for which John Rawls originally developed the concept of ideal theory: reconciling a democratic public to living in a flawed world that may otherwise (...) seem more of a home for catastrophe than justice. However, Rawls’s account of reconciliation is flawed; because of his methodology, the realistic utopia he constructs as a source of hope can be used to defend an unjust status quo. By drawing lessons from Theodor Adorno’s contrasting view of reconciliation after the Holocaust, I offer a more democratic method for political theory to offer sources of hope to the public. (shrink)

Dictionary entry of "Idealism" in the "New Dictionary of the History of Ideas".

I develop a broadly reliabilist theory of non‐ideal epistemic rationality and argue that if it is correct we should reject the recently popular idea that the standards of non‐ideal epistemic rationality are mere social conventions.

Ideal utilitarianism states that the only fundamental requirement of morality is to promote a plurality of intrinsic goods. This paper critically evaluates Hastings Rashdall’s arguments for ideal utilitarianism, while comparing them with G. E. Moore’s arguments. Section I outlines Rashdall’s ethical outlook. Section II considers two different arguments that he provides for its theory of rightness. Section III discusses his defence of a pluralist theory of value. Section IV argues that Rashdall makes a lasting contribution to the defence of ideal (...) utilitarianism. (shrink)

Scientific models typically contain idealizations, or assumptions that are known not to be true. Philosophers have long questioned the nature of idealizations: Are they heuristic tools that will be abandoned? Or rather fictional representations of reality? And how can we reconcile them with realism about knowledge of nature? Immanuel Kant developed an account of scientific investigation that can inspire a new approach to the contemporary debate. Kant argued that scientific investigation is possible only if guided by ideal assumptions—what (...) he calls “regulative ideas”. These ideas are not true of objects of nature, and yet they are not heuristic tools or fictional represen- tations. They are necessary rules governing the construction and assessment of scientific explanations. In this paper, I suggest that some idealizations can be interpreted as having necessary regulative value and as being compatible with scientific realism. I first analyze the puzzle of the nature of idealization and present the main approaches to this topic in the literature. Second, I reconsider the puzzle vis-a-vis a restricted, Kantian definition of idealization and a novel characterization of the relation between idealization and truth. Finally, I discuss in detail an example of idealization (the Hardy-Weinberg equilibrium) along the suggested Kantian lines. (shrink)

The question I wish to explore is this: Does idealism conflict with common sense? Unfortunately, the answer I give may seem like a rather banal one: It depends. What do we mean by ‘idealism’ and ‘common sense?’ I distinguish three main varieties of idealism: absolute idealism, Berkeleyan idealism, and dualistic idealism. After clarifying what is meant by common sense, I consider whether our three idealisms run afoul of it. The first does, but the latter two don’t. I conclude that while (...) Moore’s famous common sense critique is sound against external world skepticism, against Berkeleyan idealism and dualist idealism it is unavailing. (shrink)

This paper revisits the debate on ideal and nonideal theory by taking seriously Charles Mills’s suggestion that it should be understood as a dispute between idealism and materialism. I argue that by understanding different sides of the debates as relying on idealist or materialist assumptions, respectively, we can better make sense of disagreements where theorists otherwise seem to be talking past each other. In addition, I claim that the materialist objection to ideal theory is best understood as a fetishism critique (...) in the Marxian sense: ideal theory treats products of human problem-solving as if they had independent authority over us. To justify ideal theory, one needs to accord either normative or practical authority to ideal-as-idealized-models, and materialism denies both. Finally, I show that rejecting ideal theory does not entail reformism but is compatible with radical critique. (shrink)