This book provides a novel formulation and defence of moral error theory. It also provides a novel solution to the so-called now what question; viz., the question what we should do with our moral thought and talk after moral error theory. The novel formulation of moral error theory uses pragmatic presupposition rather than conceptual entailment to argue that moral judgments carry a non-negotiable commitment to categorical moral reasons. The new answer to the now what (...) question is pragmatic presupposition substitutionism: we should substitute our current moral judgments, which pragmatically presuppose the existence of categorical moral reasons with ‘schmoral’ judgments that pragmatically presuppose the existence of a specific class of prudential reasons. These are prudential reasons that, when we act on them, contribute to the satisfaction of what the author calls ‘the fundamental desire’; namely, the desire to live in a world with mutually beneficial cooperation. (shrink)

In this paper I defend what I call the argument from epistemic reasons against the moral error theory. I argue that the moral error theory entails that there are no epistemic reasons for belief and that this is bad news for the moral error theory since, if there are no epistemic reasons for belief, no one knows anything. If no one knows anything, then no one knows that there is thought when they are thinking, (...) and no one knows that they do not know everything. And it could not be the case that we do not know that there is thought when we believe that there is thought and that we do not know that we do not know everything. I address several objections to the claim that the moral error theory entails that there are no epistemic reasons for belief. It might seem that arguing against the error theory on the grounds that it entails that no one knows anything is just providing a Moorean argument against the moral error theory. I show that even if my argument against the error theory is indeed a Moorean one, it avoids Streumer's, McPherson's and Olson's objections to previous Moorean arguments against the error theory and is a more powerful argument against the error theory than Moore's argument against external world skepticism is against external world skepticism. (shrink)

Moral error theories claim that (i) moral utterances express moral beliefs, that (ii) moral beliefs ascribe moral properties, and that (iii) moral properties are not instantiated. Thus, according to these views, there seems to be conclusive evidence against the truth of our ordinary moral beliefs. Furthermore, many error theorists claim that, even if we accepted moral error theory, we could still in principle keep our first-order moral beliefs. This chapter argues that this last claim makes many (...) popular versions of the moral error theory incompatible with the standard philosophical accounts of beliefs. Functionalism, normative theories of beliefs, representationalism, and interpretationalism all entail that being sensitive to thoughts about evidence is a constitutive feature of beliefs. Given that many moral error theorists deny that moral beliefs have this quality, their views are in a direct conflict with the most popular views about the nature of beliefs. (shrink)

Unbelievable Errors defends an error theory about all normative judgements: not just moral judgements, but also judgements about reasons for action, judgements about reasons for belief, and instrumental normative judgements. This theory states that normative judgements are beliefs that ascribe normative properties, but that normative properties do not exist. It therefore entails that all normative judgements are false. -/- Bart Streumer also argues, however, that we cannot believe this error theory. This may seem to be (...) a problem for the theory. But he argues that it makes this error theory more likely to be true, since it undermines objections to the theory and it makes it harder to reject the arguments for the theory. -/- He then sketches how certain other philosophical theories can be defended in a similar way. He concludes that to make philosophical progress, we need to make a sharp distinction between a theory's truth and our ability to believe it. (shrink)

Jonas Olson presents a critical survey of moral error theory, the view that there are no moral facts and so all moral claims are false. Part I explores the historical context of the debate; Part II assesses J. L. Mackie's famous arguments; Part III defends error theory against challenges and considers its implications for our moral thinking.

Error theories about morality often take as their starting point the supposed queerness of morality, and those resisting these arguments often try to argue by analogy that morality is no more queer than other unproblematic subject matters. Here, error theory (as exemplified primarily by the work of Richard Joyce) is resisted first by arguing that it assumes a common, modern, and peculiarly social conception of morality. Then error theorists point out that the social nature of morality (...) requires one to act against one's self-interest while insisting on the categorical, inescapable, or overriding status of moral considerations: they argue that morality requires magic, then (rightly) claim that there is no such thing as magic. An alternate eudaimonist conception of morality is introduced which itself has an older provenance than the social point of view, dating to the ancient Greeks. Eudaimonism answers to the normative requirements of morality, yet does not require magic. Thus, the initial motivation for error theory is removed. (shrink)

According to moral error theory, moral discourse is error-ridden. Establishing error theory requires establishing two claims. These are that moral discourse carries a non-negotiable commitment to there being a moral reality and that there is no such reality. This paper concerns the first and so-called non-negotiable commitment claim. It starts by identifying the two existing argumentative strategies for settling that claim. The standard strategy is to argue for a relation of conceptual entailment between the moral (...) statements that comprise moral discourse and the statement that there is a moral reality. The non-standard strategy is to argue for a presupposition relation instead. Error theorists have so far failed to consider a third strategy, which uses a general entailment relation that doesn’t require intricate relations between concepts. The paper argues that both entailment claims struggle to meet a new explanatory challenge and that since the presupposition option doesn’t we have prima facie reason to prefer it over the entailment options. The paper then argues that suitably amending the entailment claims enables them to meet this challenge. With all three options back on the table the paper closes by arguing that error theorists should consider developing the currently unrecognised, non-conceptual entailment claim. (shrink)

Moral error theory of the kind defended by J. L. Mackie and Richard Joyce is premised on two claims: (1) that moral judgements essentially presuppose that moral value has absolute authority, and (2) that this presupposition is false, because nothing has absolute authority. This paper accepts (2) but rejects (1). It is argued first that (1) is not the best explanation of the evidence from moral practice, and second that even if it were, the error theory (...) would still be mistaken, because the assumption does not contaminate the meaning or truth-conditions of moral claims. These are determined by the essential application conditions for moral concepts, which are relational rather than absolute. An analogy is drawn between moral judgements and motion judgements. (shrink)

Proponents of the epistemic companions in guilt argument argue that we should reject the moral error theory because it entails that there are no epistemic reasons. In this paper, I investigate whether a plausible version of the moral error theory can be constructed that does not entail an error theory about epistemic reasons. I argue that there are no irreducibly normative second-personal reasons even if there are irreducibly normative reasons. And epistemic reasons are not (...) second-personal reasons. In this case, a plausible version of the moral error theory can be constructed that does not entail an error theory about epistemic reasons if facts and claims about morality entail facts and claims about irreducibly normative second-personal reasons. And, as I explain, there is a good case that facts and claims about morality do entail facts and claims about irreducibly normative second-personal reasons. (shrink)

Many philosophers have claimed that normative error theorists are committed to the claim ‘Error theory is true, but I have no reason to believe it’, which to some appears paradoxical. Case (2019) has claimed that the normative error theorist cannot avoid this paradox. In this paper, we argue that there is no paradox in the first place, that is once we clear up the ambiguity of the word ‘reason’, both on the error theorist’s side and (...) those that claim that there is a self-defeat problem. Upon clarification, we also raise scepticism to what exactly the nature of self-defeat is meant to be. (shrink)

This paper surveys contemporary accounts of error theory and fictionalism. It introduces these categories to those new to metaethics by beginning with moral nihilism, the view that nothing really is right or wrong. One main motivation is that the scientific worldview seems to have no place for rightness or wrongness. Within contemporary metaethics there is a family of theories that makes similar claims. These are the theories that are usually classified as forms of error theory or (...) fictionalism though there are different ways of accepting some form of the view that nothing is really write or wrong. A range of different ways of going in the light of such a realization is also proposed. The resulting taxonomy of positions is quite complicated and sometimes surprising. One surprise will be that some positions plausibly classified as error theories or forms of fictionalism do not quite seem to be forms of nihilism. (shrink)

This contribution considers whether or not it is possible to devise a coherent form of external skepticism about the normative if we ‘relax’ about normative ontology by regarding claims about the existence of normative truths and properties themselves as normative. I answer this question in the positive: A coherent form of non-normative error-theories can be developed even against a relaxed background. However, this form no longer makes any reference to the alleged falsity of normative judgments, nor the non-existence of (...) normative properties. Instead, it concerns a specifically inferentialist construal of error-theories which suggests that error-theorists should abstain from any claims about normative ontology to focus exclusively on claims about the inferential role of normative vocabulary. As I will show, this suggestion affords a number of important advantages. However, it also comes at a cost, in that it might not only change the letter, but also the spirit of traditional error-theories. (shrink)

One of the most formidable challenges to the Error Theory is the Normative Objection, according to which the Error Theory ought to be rejected because of its deeply implausible first-order normative implications. Recently, Bart Streumer has offered a novel and powerful defence of the Error Theory against this objection. Streumer argues that the Error Theory’s plausibility deficit when viewed against the background of our normative beliefs does not show the theory’s falsity. (...) Rather, it can be explained by the fact that this theory, though true, cannot be believed. In this paper, I argue that Streumer’s defence does not succeed. I show that, even if we grant Streumer that we cannot believe the Error Theory, we can still formulate what I call the Undermining Normative Objection, an argument that proceeds only from believable premises to a believable conclusion and shows that the arguments supporting the Error Theory cannot all be sound. (shrink)

In this paper, I distinguish between two error theories of morality: one couched in terms of truth ; the other in terms of justification. I then present two arguments: the Poisoned Presupposition Argument for ET1; and the Evolutionary Debunking Argument for ET2. I go on to show how assessing these arguments requires paying attention to empirical moral psychology, in particular, work on folk metaethics. After criticizing extant work, I suggest avenues for future research.

According to the error theory, normative judgements are beliefs that ascribe normative properties, even though such properties do not exist. In this paper, I argue that we cannot believe the error theory, and that this means that there is no reason for us to believe this theory. It may be thought that this is a problem for the error theory, but I argue that it is not. Instead, I argue, our inability to believe (...) the error theory undermines many objections that have been made to this theory. (shrink)

Many contemporary philosophers rate error theories poorly. We identify the arguments these philosophers invoke, and expose their deficiencies. We thereby show that the prospects for error theory have been systematically underestimated. By undermining general arguments against all error theories, we leave it open whether any more particular arguments against particular error theories are more successful. The merits of error theories need to be settled on a case-by-case basis: there is no good general argument against (...) error theories. (shrink)

Recently, companions in guilt strategies have garnered significant philosophical attention as a response to arguments for moral error theory, the view that there are no moral facts and that our moral beliefs are thus systematically mistaken. According to Cuneo (The normative web: an argument for moral realism, Oxford University Press, Oxford, 2007), Das (Philos Q 66:152–160, 2016; Australas J Philos 95(1):58–69, 2017), Rowland (J Ethics Soc Philos 7(1):1–24, 2012; Philos Q 66:161–171, 2016) and others, epistemic facts would be (...) just as metaphysically problematic (or ‘guilty’) as moral facts. But since epistemic error theory is implausible, arguments for moral error theory prove too much and should be rejected. My aim is to argue that the success of this strategy is limited. In particular, the companions in guilt response fails against error-theoretic arguments motivated by concerns about explanatory dispensability, as recently developed by Joyce (The evolution of morality, MIT press, Bradford, 2005) and Olson (Moral error theory: history, critique, defence, Oxford University Press, Oxford, 2014: Ch. 7). To succeed, the response would require a prima facie plausible argument to the effect that epistemic facts are metaphysically dubious because they, too, are explanatorily dispensable. But, as I show, any such argument proves self-effacing: its premise commits us to believing in epistemic facts, while its conclusion forces us to deny their existence. Consequently, companions in guilt strategies don’t offer a panacea against arguments for moral error theory. (shrink)

In this commentary, I offer an account of an error theory of biotechnology and apply it to Brian D. Earp, Olga A. Wudarczyk,Anders Sandberg, and Julian Savulescu’s (2013)ethical framework for chemical reakups.

Here is a prima facie plausible view: since the metaethical error theory says that all positive moral claims are false, it makes no sense for error theorists to engage in normative ethics. After all, normative ethics tries to identify what is right or wrong (and why), but the error theory implies that nothing is ever right or wrong. One way for error theorists to push back is to argue for “concept preservationism,” that is, the (...) view that even though our ordinary moral discourse is deeply flawed, we should nevertheless continue to engage in moral thought and talk. However, in this article, I pursue a different strategy. I argue that even if we completely abandon moral discourse, thus endorsing “concept abolitionism,” the discipline of normative ethics survives. While traditional normative ethics uses as its “starting points” moral claims and beliefs, instead, concept abolitionists can make use of alternative utterances and attitudes that share salient characteristics with moral claims and beliefs, allowing for a kind of theorizing that is practically oriented, impartial, involves the traditional subject matters and methods of normative ethics, and allows engagement with the arguments of traditional moral philosophers. (shrink)

Error theories have been proposed and defended in several different areas of philosophy. In addition to ethics, there are error theories about numbers, color, free will, and personal identity. Moral error theories differ in scope. Theories at one end of the spectrum take normative judgments in general—of which moral judgments are a subclass—to be uniformly false, whereas theories at the other end of the spectrum take only a subclass of moral judgments—example those concerning duty and obligation, but (...) not those concerning virtue and vice—to be uniformly false. Moral error theorists typically join forces with non-naturalist realists, against naturalism and non-cognitivism. Facts that are normative in the reason-implying sense are irreducibly normative, and they are very different. Many non-naturalist realists and error theorists maintain that it is impossible to give a plausible naturalistic account of moral facts, precisely because they are irreducibly normative; moral naturalism therefore falls prey to the "normativity objection". (shrink)

One debate in the experimental exploration of everyday judgments about free will is whether most people are compatibilists or incompatibilists. Some recent research suggests that many people who have incompatibilist intuitions are making a mistake; as such, they do not have genuine incompatibilist intuitions. Another worry is whether most people appropriately understand determinism or confuse it with similar, but different, notions such as fatalism. In five studies we demonstrate people distinguish determinism from fatalism. While people overall make this distinction, a (...) large percentage of people still judge that a person who is fated to perform an action is both free and morally responsible for that action. Those who thought that one freely performs and is morally responsible for a fated action had much stronger compatibilist judgments. These data suggest that a substantial percentage of people have “free will no matter what” intuitions. As a result, even though many people may appear to be compatibilist.. (shrink)

My aim in this essay is largely defensive. I aim to discuss some problems for moral error theory and to offer plausible solutions. A full positive defense of moral error theory would require substantial investigations of rival metaethical views, but that is beyond the scope of this essay. I will, however, try to motivate moral error theory and to clarify its commitments. Moral error theorists typically accept two claims – one conceptual and one (...) ontological – about moral facts. The conceptual claim is that moral facts are or entail facts about categorical reasons (and correspondingly that moral claims are or entail claims about categorical reasons); the ontological claim is that there are no categorical reasons – and consequently no moral facts – in reality. I accept this version of moral error theory and I try to unpack what it amounts to in Section 2.1 In the course of doing so I consider two preliminary objections: that moral error theory is (probably) false because its implications are intuitively unacceptable (what I call the Moorean objection) and that the general motivation for moral error theory is self-undermining in that it rests on a hidden appeal to norms. The above characterization seems to entail the standard formulation of moral error theory, according to which first-order moral claims are uniformly false. Critics have argued that the standard formulation is incoherent since – by the law of excluded middle – the negation of a false claim is true. Hence if ‘Torture is wrong’ is false, ‘Torture is not wrong’ is true. Contrary to what moral error theorists contend, then, moral error theory seems to carry first-order moral implications that by the theory’s own lights are uniformly false. In Section 3 I suggest a formulation that is consistent with the standard formulation of moral error theory, free of first-order moral implications, and subject to no logical difficulties. In Section 4 I consider and rebut Stephen Finlay’s recent attack on moral error theory. According to Finlay the conceptual claim is false because all moral claims – and indeed all normative claims – are, or should be understood as, relativized to some moral standard or system of ends. Moral error theorists thus attribute to ordinary speakers an error that simply isn’t there. I argue that Finlay’s view has some very implausible implications and that it does not avoid commitment to various forms of error theory. This becomes especially clear when we focus on fundamental moral claims. In Section 5 I consider the worry that error theorists’ rejection of categorical reasons proves too much; in particular, the worry that error theorists’ qualms about categorical reasons apply equally to claims about hypothetical reasons, that is, claims to the effect that there is reason to take the means to one’s ends. In my view error theorists such as Mackie and Joyce have failed to pay due consideration to this problem. What the challenge establishes, I submit, is that error theorists cannot just take for granted that hypothetical reasons are metaphysically unproblematic; they must offer an account of hypothetical reasons that shows that they are. I argue that the only plausible account available to error theorists is one according to which claims about hypothetical reasons reduce to non-normative claims about relations between means and ends. (shrink)

I argue that claims that the presence of functional and behavioral analogs of consciousness in LLMs are evidence of AI consciousness should be rejected. Instead, the capability of an LLM trained on human data to emulate human consciousness–related behaviors and functional architecture does not confirm or discredit claims of chatbot consciousness. My “crowdsourced neocortex” account explains why chatbots can assert consciousness and related emotional states, and even exhibit functional configurations analogous to consciousness processing in the biological brain without genuinely having (...) inner experience. This provides an “error theory”—an explanation of why people erroneously conclude that chatbots have inner lives. As the LLMs scale up, their ‘conceptual systems’ come to mirror the masses of users whose data was in the training set, as well as those providing feedback to the system, (hence I write “crowdsourced neocortex”) (Schneider 2024, 2025). Indeed, this is part of a general pattern: it is well known that as LLMs scale up, their skills in arithmetic, word in context, theory of mind and a variety of other tasks similarly improve (Wei, et al.). Today’s LLMs have conceptual structure that mimics that of groups of humans whose data was used (Anthropic 2025; Heaven 2025; Emeisen, et al, 2025; Schneider 2024). (shrink)

Bart Streumer argues that it is not possible for us to believe the error theory, where by ‘error theory’ he means the claim that our normative beliefs are committed to the existence of normative properties even though such properties do not exist. In this paper, we argue that it is indeed possible to believe the error theory. First, we suggest a critical improvement to Streumer’s argument. As it stands, one crucial premise of that argument—that (...) we cannot have a belief while believing that there is no reason to have it—is implausibly strong. We argue that for his purposes, Streumer’s argument only requires a weaker premise, namely that we cannot rationally have a belief while believing that there is no reason to have it. Secondly, we go on to refute the improved argument. Even in its weaker form, Streumer’s argument is either invalid or the crucial premise should be rejected. (shrink)

This is an encyclopedia entry (of approximately 4,500 words) on "error theory.".

The paper explores the consequences of adopting a moral error theory targeted at the notion of reasonable convergence. I examine the prospects of two ways of combining acceptance of such a theory with continued acceptance of moral judgements in some form. On the first model, moral judgements are accepted as a pragmatically intelligible fiction. On the second model, moral judgements are made relative to a framework of assumptions with no claim to reasonable convergence on their behalf. I (...) argue that the latter model shows greater promise for an error theorist whose commitment to moral thought is initially serious. (shrink)

Moral error theory claims that no moral sentence is (nonvacuously) true. Atheism claims that the existence of evil in the world is incompatible with, or makes improbable, the existence of God. Is moral error theory compatible with atheism? This paper defends the thesis that it is compatible against criticisms by Nicholas Sturgeon.

This paper argues that moral error theory faces a heavyweight demarcation problem analogous to expressivism’s ‘creeping minimalism’ (Dreier 2004). I propose a framework for meta-theories that diagnoses this internal demarcation failure. Under global minimalism, error theory’s ability to distinguish error-theoretic discourses (e.g., ethics) from success-theoretic ones (e.g., physics) is trivialised. While Tiefensee (2019) claims minimalism reduces error theory to global moral skepticism, I contend that error theory’s substantive demarcation hinges not merely (...) on the categorical falsity of moral claims but on the soundness of its core argument: moral discourse presupposes objective facts (the conceptual claim), which do not exist (the ontological claim). By adopting a feminist-inspired minimalism about objectivity—where objectivity is procedural, tied to discursive practices like public scrutiny—error theorists gain grounds to defend the conceptual claim, which gives moral error theorists reasonable grounds to adopt minimalism. Yet minimalism simultaneously renders the ontological claim false, collapsing the distinction between moral and paradigm realist discourses. Some potential responses like bifurcation and inferentialism to the problem are also considered and critiqued. (shrink)

In his recent article entitled ‘Can We Believe the Error Theory?’ Bart Streumer argues that it is impossible (for anyone, anywhere) to believe the error theory. This might sound like a problem for the error theory, but Streumer argues that it is not. He argues that the un-believability of the error theory offers a way for error theorists to respond to several objections commonly made against the view. In this paper, we (...) respond to Streumer’s arguments. In particular, in sections 2-4, we offer several objections to Streumer’s argument for the claim that we cannot believe the error theory. In section 5, we argue that even if Streumer establishes that we cannot believe the error theory, this conclusion is not as helpful for error theorists as he takes it to be. (shrink)

Much current debate in the metaphysics of time is between A-theorists and B-theorists. Central to this debate is the assumption that time exists and that the task of metaphysics is to catalogue time’s features. Relatively little consideration has been given to an error theory about time. Since there is very little extant work on temporal error theory the goal of this paper is simply to lay the groundwork to allow future discussion of the relative merits of (...) such a view. The paper thus develops a conceptual framework from within which to evaluate claims about the actual existence, or not, of temporality as that notion appears in folk discourses about time, and from there to examine claims about the counterfactual existence, or not, of temporality so conceived. We subsequently apply this framework to three extant positions drawn from physics and metaphysics that deny the existence of time. We show that only one of these positions is a folk temporal error theory; that is, a view that denies the existence of time as that notion is operative in our everyday thought and talk. (shrink)

This chapter explains that there is an alternative formulation of the first premise in the generic argument for error theory, which does not use conceptual entailment but presupposition instead. It argues that semantic presupposition error theory is implausible, but that pragmatic presupposition error theory is plausible. The claim that is pragmatically presupposed by moral discourse is that there exist categorical moral reasons of rationality. The chapter further argues that this formulation of error (...) class='Hi'>theory has convincing replies to the externalism and pervasiveness objections that were problematic for conceptual entailment error theory, and that additional objections that have been wielded against it also fail. Finally, the chapter argues that the preceding discussion also provides sufficient evidence to believe the third and fourth premises in the generic argument. (shrink)

A new kind of debate about the normative error theory has emerged. Whereas longstanding debates have fixed on the error theory’s plausibility, this new debate concerns the theory’s believability. Bart Streumer is the chief proponent of the error theory’s unbelievability. In this brief essay, we argue that Streumer’s argument prevails against extant critiques, and then press a criticism of our own.

In Cowie’s “Why Moral Paradoxes Support Error Theory,” he argues that recent work in moral theory shows that error theory fares no worse than other metaethical theories when it comes to ordinary moral judgment, and he argues that this suffices to answer the fundamental challenge for error theory. This article shows that Cowie’s argument does not work. More specifically, it is shown that the counterintuitive implications of error theory dominate those of (...) realism, in both a technical, quantitative sense, and in a non-technical, qualitative sense. If Cowie is correct that, in the absence of an answer to the fundamental challenge, error theory should be rejected out of hand, then this constitutes a serious setback to the error theorist’s program. (shrink)

An error theory about moral reasons is the view that ordinary thought is committed to error, and that the alleged error is the thought that moral norms (expressing alleged moral requirements) invariably supply agents with sufficient normative reasons (for action). In this paper, I sketch two distinct ways of arguing for the error theorist's substantive conclusion that moral norms do not invariably supply agents with sufficient normative reasons. I am primarily interested in the somewhat neglected (...) way, which I call the alternative route. A reason for this is because it seems a genuine question whether the alternative route towards the substantive conclusion need be as troubling to the moralist as the standard route. My hunch is that it is not. Though the alternative error theory denies justification from genuinely moral acts, it also does so from acts born out of self-interest or immorality. If the alternative theory is true, the moralist can at least hold on to the claim that if genuinely moral considerations fail to provide agents with reasons for action, nothing else (of the sort) does. (shrink)

This paper presents a comparative evaluation of constructivist and error theoretic accounts of moral claims. It is argued that constructivism has distinct advantages over error theory.

Normative error theory is thought by some to be unbelievable because they suppose the incompatibility of believing a proposition at the same time as believing that one has no normative reason to believe it—which believing in normative error theory would seem to involve. In this article, I argue that normative holism is believable and that a normative holist will believe that the truth of a proposition does not invariably generate a normative reason to believe it. I (...) outline five different scenarios in which this is believably the case. I then show how each example can be used to generate a counterexample to the incompatibility claim. I conclude that believing a proposition is compatible with believing there is no reason to believe it and that as such normative error theory has not yet been shown to be unbelievable. (shrink)

Normative error theorists aim to defend an error theory which says that normative judgments ascribe normative properties, and such properties, including reasons for belief, are never instantiated. Many philosophers have raised objections to defending a theory which entails that we cannot have reason to believe it. Spencer Case objects that error theorists simply cannot avoid self-defeat. Alternatively, Bart Streumer argues that we cannot believe normative error theory but that, surprisingly, this helps its advocates (...) defend it against these objections. I think that if Streumer’s argument is successful, it provides error theorists an escape from Case’s self-defeat objection. However, I build upon and improve Case’s argument to show that we could never even successfully defend normative error theory whether we can believe it or not. So, self-defeat remains. I close by offering some reasons for thinking our inability to defend normative error theory means that we should reject it, which, in turn, would mean that it’s false. (shrink)

Error theories about practical deontic judgements claim that no substantive practical deontic judgement is true. Practical deontic judgements are practical in the sense that they concern actions, and they are deontic in the sense that they are about reasons, rightness, wrongness, and obligations. This paper assumes the truth of an error theory about practical deontic judgements in order to examine its ramifications. I defend three contentions. The first is that, if so-called fitting-attitude analyses of value fail, the (...) truth of some substantive evaluative judgements would not be threatened by the fact that no substantive practical deontic judgment is true. Secondly, in light of the truth of these evaluative judgements, the best thing we could do is to continue to make practical deontic judgements despite the truth of an error theory about practical deontic judgements. My third contention is that, if some evaluative judgements are unaffected by an error theory about practical deontic judgements, then such an error theory will eventually lead us to some version of consequentialism. (shrink)

This paper provides a new solution to the problem of moral permissions for the moral error theory. The problem is that the error theorist seems committed to the claim that all actions are morally permitted, as well as to the contradictory claim that no action is morally permitted. My solution understands the moral error theory as the view that folk moral discourse is systematically in error by virtue of suffering from semantic presupposition failure, which (...) I show is consistent with a Kratzerian semantics for deontic modals in natural language. Formally, the solution is to treat the ordering source parameter within Kratzer’s semantics as undefined in the case of folk moral discourse. The paper concludes with thoughts about the import of the solution proffered for the alleged independence of the moral error theory from normative ethics. (shrink)

Moral error theory has many troubling and counterintuitive consequences. It entails, for example, that actions we ordinarily think of as obviously wrong are not wrong at all. This simple observation is at the heart of much opposition to error theory. I provide a new defense against it. The defense is based on the impossibility of finding satisfying solutions to a wide range of puzzles and paradoxes in moral philosophy. It is a consequence of this that if (...) any moral claims are true, then a lot of highly troubling and counterintuitive moral claims must be in their number. This means that troubling and counterintuitive moral claims are everybody’s problem—not just error theorists’, but also their opponents’. Indeed, there is a sense in which this shared problem is worse for the opponents of error theory than for error theorists themselves. (shrink)

In this paper I consider the merits and motivations for eliminativist error theories of absence causation, such as those offered by Beebee, Varzi, and Mumford. According to such views, there is no causation by absence. Here I argue that, despite of- fering an alternative picture of the practice of citing absences as causes, these views are inadequately motivated. I consider and reject a range of arguments for error-theoretic approaches, including appeals to ontological economy, physicalism and the causal clo- (...) sure of the physical, as well as Mumford’s recent appeal to soft Parmenideanism. I also argue that the arguments in the literature which aim to show that causation by absence is conceptually problematic are less forceful than they might initially appear. The result is that there is no compelling reason yet why we should reject absence causation. (shrink)

This paper evaluates an argument for the conclusion that in order to produce a viable objection to a particular error theory, the objection must not be applicable to any error theory. The reason given for this conclusion is that error theories about some discourses are uncontroversial. But the examples given of uncontroversial error theories are not good ones, nor do there appear to be other examples available.

Bart Streumer thinks that we cannot believe the global normative error theory. Streumer's argument presupposes a Cartesian theory of belief fixation. The Cartesian theory entails that we can understand a proposition without believing it. But the Cartesian theory of belief fixation is false, and the Spinozan theory is true. The Spinozan theory of belief fixation entails that we cannot understand a proposition without believing it. The present paper argues that Streumer's claim is false, (...) and we can believe the global normative error theory because the Spinozan theory is correct. The paper then applies the Spinozan theory of belief fixation to the “Now what?” problem for global normative error theory and responds to objections. (shrink)

Kopeikin (forthcoming a, forthcoming b) and Rachels’ (1975) bare-difference cases elicit the intuition that killing is no different than letting die. Hill’s (2018) bare-difference cases elicit the intuition that killing is worse than letting die. At least one of the intuitions must be mistaken. This calls for an error theory. Hill has an error theory for the intuition elicited by the Kopeikin/Rachels’ cases. Kopeikin and Rachels have an error theory for the intuition elicited by (...) Hill’s cases. A natural thought is that we are at an impasse. There is no plausible basis for preferring one error theory to the other. I argue that this natural thought is mistaken. Not all error theories are equal. Preliminary considerations favor Hill’s error theory and disfavor the Kopeikin/Rachels error theory. But preliminary considerations are not decisive. The way forward in the bare-difference debate is not to evaluate intuitions. The intuitions are in. What is left to do now is evaluate the comparative status of the Hill and the Kopeikin/Rachels error theories. (shrink)

Moral error theory has been criticized on formal grounds for lacking a coherent semantics of moral sentences. In this paper, I provide a truthmaker-based semantics of moral sentences that is compatible with moral error theory. The hyperintensional account draws attention to the exact truth- and falsemakers of moral propositions. Error theorists must assume that propositions that have only moral truthmakers have at least one non-moral falsemaker. A central consequence of the discussion is that moral (...) class='Hi'>error theory is compatible with a classical logic of moral notions. (shrink)

이 논문은 존 맥키의 오류이론과 그 이론에 근거한 리차드 조이스의 허구론이 갖는 문제에 대해 논의한다. 맥키는 오류이론에서 모든 “객관적” 가치를 부정하고 있지만, 현실의 도덕생활에서는 객관성을 가진 도덕체계, 즉 도덕인지론이 가능한 체계가 존재할 수 있음을 주장한다. 리차드 조이스는 맥키의 오류이론을 발전시켜 허구론을 제시하는데, 이것에 의하면, 우리가 경험하는 모든 도덕규범과 도덕체계는 단지 허상일 뿐이다. 모든 도덕적 판단은 “잘못된” 것이고 도덕적 믿음도 가져서는 안 된다고 말한다. 그럼에도 현실생활의 도덕체계는 유용하므로 유지할 필요가 있다고 주장한다. 필자는 각 이론의 특징을 설명하고, 문제점을 지적한다. 허구론에 따르면, 도덕체계가 (...) 허상이므로 이 체계 자체에 사람들로 하여금 도덕적 행동을 하게하는 권위나 설득력이 없다고 할 수 있다. 따라서 각 도덕행위자들이 도덕규범을 저버리고 자신들의 이익을 추구할 때에, 도덕체계는 완전히 무기력하다고 할 수 있다. 또 사람들 간에 도덕적 이견이 생겼을 때, 이것을 도덕적 힘으로 중재하기도 어렵다. 그래서 허구론에서는 객관성 있는 도덕체계가 존속해나갈 수 있음을 보여주기 어렵다는 것이 필자의 주장이다. 맥키의 경우에는 주관적인 도덕 감성을 인정하므로, 조이스의 경우보다 좀 나을 수도 있지만, 가치판단의 객관화를 부정하고 모든 “객관적” 가치를 배제하려는 오류이론 때문에 역시 조이스의 허구론과 비슷한 문제에 빠진다고 필자는 주장한다. (shrink)

Moorean arguments are a popular and powerful way to engage highly revisionary philosophical views, such as nihilism about motion, time, truth, consciousness, causation, and various kinds of skepticism (e.g., external world, other minds, inductive, global). They take, as a premise, a highly plausible first-order claim (e.g., cars move, I ate breakfast before lunch, it’s true that some fish have gills) and conclude from it the falsity of the highly revisionary philosophical thesis. Moorean arguments can be used against nihilists in ethics (...) (error theorists), too. Recently, error theorists have recognized Moorean arguments as a powerful challenge and have tried to meet it. They’ve argued that moral Moorean premises seem highly credible to us, but aren’t, by offering various debunking explanations. These explanations all appeal to higher-order evidence—evidence of error in our reasoning. I argue that drawing attention to higher-order evidence is a welcome contribution from error theorists, but that the higher-order evidence actually counts further against error theoretic arguments—including their debunking explanations—and further in favor of Moorean arguments and the commonsense views they support. Along the way I answer a few prominent objections to Moorean arguments: that they are objectionably question-begging, rely on categorizing some facts as “Moorean Facts”, and that reports of one’s credence in a proposition bears no interesting relation to that proposition’s credibility. (shrink)

The moral error theorist claims that moral discourse is irredeemably in error because it is committed to the existence of properties that do not exist. A common response has been to postulate ‘companions in guilt’—forms of discourse that seem safe from error despite sharing the putatively problematic features of moral discourse. The most developed instance of this pairs moral discourse with epistemic discourse. In this paper, I present a new, prudential, companions-in-guilt argument and argue for its superiority (...) over the epistemic alternative. (shrink)

This article defends misanthropy against what I take to be an underappreciated objection. Several recent defenders of misanthropy have held that it should be understood as involving a critical judgment of humanity based on the belief that human life is saturated with moral failings. The first half of this article identifies a problem for this view: namely, most people do not experience their lives in ways that would seem to be entailed by the misanthrope’s judgment. The second half proposes a (...) solution to this objection—an error theory for misanthropy. Several arguments are given. A common theme among them, however, is that there are good reasons to think that human beings habitually ignore and/or suppress certain displays of their moral failings. A misanthrope can also argue that beings whose lives are choked in moral failings will be more likely to overlook and to disavow them. (shrink)