Despite its small stature, "if" occupies a central place both in everyday language and the philosophical lexicon. In allowing us to talk about hypothetical situations, "if" raises a host of thorny philosophical puzzles about language and logic. Addressing them requires tools from linguistics, logic, probability theory, and metaphysics. Justin Khoo uses these tools to navigate a maze of interconnected issues about conditionals, some of which include: the nature of linguistic communication, the relationship between logical and natural languages, and the (...) relationship between different kinds of modality. According to Khoo's theory, conditionals form a unified class of expressions which share a common semantic core that encodes inferential dispositions. Thus, rather than represent the world, conditionals are devices used to communicate how we are disposed to infer. Khoo shows that this theory can be extended to predict the probabilities of conditionals, as well as how different kinds of conditionals differ both semantically and pragmatically. Khoo's book will make for a significant contribution to the literature on conditionals and should be of interest to philosophers, linguists, and computer scientists. (shrink)

The physical realm is causally closed, according to physicalists like me. But why is it causally closed, what metaphysically explains causal closure? I argue that reductive physicalists are committed to one explanation of causal closure to the exclusion of any independent explanation, and that as a result, they must give up on using a causal argument to attack mind–body dualism. Reductive physicalists should view dualism in much the way that we view the hypothesis that unicorns exist, or that the Kansas (...) City Royals won the 2003 World Series: false, but not objectionable in any distinctively causal way. My argument turns on connections between explanation, counterfactuals, and inductive confirmation. (shrink)

An exceptional contribution to the teaching and study of Chinese thought, this anthology provides fifty-eight selections arranged chronologically in five main sections: Han Thought, Chinese Buddhism, Neo-Confucianism, Late Imperial Confucianism, and the early Twentieth Century. The editors have selected writings that have been influential, that are philosophically engaging, and that can be understood as elements of an ongoing dialogue, particularly on issues regarding ethical cultivation, human nature, virtue, government, and the underlying structure of the universe. Within those topics, issues of (...) contemporary interest, such as Chinese ideas about gender and the experiences of women, are brought to light. -/- Introductions to each main section provide an overview of the period, while brief headnotes to selections highlight key points. -/- The translations are the works of many distinguished scholars, and were chosen for their accuracy and accessibility, especially for students, general readers, and scholars who do not read Chinese. Special effort has been made to maintain consistency of key terms across translations. -/- Also included are a glossary, bibliography, index of names, and an index locorum of The Four Books. (shrink)

In this paper we use an experimental approach to investigate how linguistic conventions can emerge in a society without explicit agreement. As a starting point we consider the signaling game introduced by Lewis. We find that in experimental settings, small groups can quickly develop conventions of signal meaning in these games. We also investigate versions of the game where the theoretical literature indicates that meaning will be less likely to arise—when there are more than two states for actors to transfer (...) meaning about and when some states are more likely than others. In these cases, we find that actors are less likely to arrive at strategies where signals have clear conventional meaning. We conclude with a proposal for extending the use of the methodology of experimental economics in experimental philosophy. (shrink)

A standard methodology in philosophy of language is to use intuitions as evidence. Machery, Mallon, Nichols, and Stich challenged this methodology with respect to theories of reference by presenting empirical evidence that intuitions about one prominent example from the literature on the reference of proper names vary between Westerners and East Asians. In response, Sytsma and Livengood conducted experiments to show that the questions Machery and colleagues asked participants in their study were ambiguous, and that this ambiguity affected the responses (...) given by Westerners. Sytsma and Livengood took their results to cast doubt on the claim that the current evidence indicates that there is cross-cultural variation in intuitions about the Gödel case. In this paper we report on a new cross-cultural study showing that variation in intuitions remains even after controlling for the ambiguity noted by Sytsma and Livengood. (shrink)

Like Kant, the German Idealists, and many neo-Kantian philosophers before him, Nietzsche was persistently concerned with metaphysical questions about the nature of objects. His texts often address questions concerning the existence and non-existence of objects, the relation of objects to human minds, and how different views of objects significantly impact various commitments in many areas of philosophy—not just metaphysics, but also semantics, epistemology, science, logic and mathematics, and even ethics. This book presents a systematic and comprehensive analysis of Nietzsche’s material (...) object metaphysics. Remhof argues that Nietzsche embraces the controversial _constructivist_ view that all concrete objects are socially constructed. Reading Nietzsche as a constructivist, Remhof contends, provides fresh insight into Nietzsche's views on truth, science, naturalism, and nihilism. Remhof investigates how Nietzsche’s view of objects compares with similar views offered by influential American pragmatists, and explores the implications of Nietzsche’s constructivism for debates in contemporary material object metaphysics. _Nietzsche’s Constructivism _is a highly original and timely contribution to the steadily growing literature on Nietzsche’s thought. (shrink)

Through the lenses of cognitive science of religion, successful god concepts must possess a number of features. God concepts must be counterintuitive, an intentional agent, possessing strategic information, able to act in the human world in detectable ways and capable of motivating behaviors that reinforce belief. That Santa Claus appears to be only inconsistently represented as having all five requisite features Santa has failed to develop a community of true believers and cult. Nevertheless, Santa concepts approximate a successful god concept (...) more closely than other widespread cultural characters such as Mickey Mouse and the Tooth Fairy, in part explaining Santa's relative cultural prominence. (shrink)

In a recent paper in this journal, Jason Brennan correctly notes that libertarians struggle to justify a policy of compulsory vaccination. The most straightforward argument that justifies compulsory vaccination is that such a policy promotes welfare. But libertarians cannot make this argument because they claim that the state is justified only in protecting negative rights, not in promoting welfare. I consider two representative libertarian attempts to justify compulsory vaccination, and I argue that such arguments are unsuccessful. They either fail to (...) show that the state is justified in implementing the policy or overgeneralise. I suggest that Brennan's solution is especially well motivated insofar as it addresses the shortcomings of these arguments. Brennan argues that we violate the rights of others by participating in an activity that imposes an unacceptable collective risk of harm. Going unvaccinated is an activity that imposes an unacceptable collective risk of harm, and thus amounts to a rights violation. So, the state can implement a policy of compulsory vaccination I object, however, that Brennan's delineation of acceptable and unacceptable risk implicitly rests on classical liberal rather than libertarian principles; he justifies compulsory vaccination on the grounds that it promotes welfare. I also object that Brennan's argument would entail significant departures from libertarian institutional arrangements. This leaves libertarians with a choice: they can develop new arguments to demonstrate that their position is compatible with compulsory vaccination, or they can accept that their view entails the impermissibility of compulsory vaccination, and argue that this is not an unpalatable implication of their view. (shrink)

We argue that the evil-god challenge is not an additional challenge for theists above and beyond the (much older) gap problem. One version of the evil-god challenge is merely a specific instance of the gap problem, and another is dependent on that specific instance of the gap problem. Therefore, the various solutions to the gap problem that theists have developed double as responses to the evil-god challenge, placing the evil-god challenge in a more vulnerable position than has been supposed.

Nietzsche’s presentation of the eternal recurrence in Gay Science 341 is often viewed as a practical thought experiment meant to radically transform us. But exactly why and how we are supposed to be transformed is not clear. I contend that addressing these issues requires taking a close look at the psychological setting of the passage. The eternal recurrence is presented in our “loneliest loneliness.” I argue that facing the eternal recurrence from a state of profound loneliness both motivates self-transformation and (...) contributes toward helping us succeed at that project. (shrink)

The claim of this work is that philosophy is a kind of autobiographical practice. To investigate and defend this claim I look to three notable occasions in the life and work of Ralph Waldo Emerson in which the philosophical is, I argue, a translation of the autobiographical. ;There are three parts of this work, each of which aims to illuminate the autobiographical nature of philosophical tasks and problems. For special consideration, I investigate Emerson's experience of the death of others, the (...) anxiety of inheritance, and the loss of vision. In the first part, I look at the way in which the corpse is related to the corpus , and the manner in which performances have propositional content. In the second part, I concern myself with paradoxes involved in Emerson's version of exemplarity. In the third part, I focus on how Emerson's persistent use of ocular metaphor signals a way of understanding subjectivity, namely as something that is constituted visually, and how this use is indicative of Emerson's view that perception is fatal. I consider the implications of a selfhood that is regarded to be metaphorically as fragile and limited as the human eye. ;I point out some of the significant ways in which human bodily constitution impacts moral, aesthetic, and metaphysical life. I may enjoy the experiences that attend thinking, but alas the conditions of embodiment announce themselves, and there is no amount of cognitive negotiation that can save me from having to cope with the necessities of mortality and inheritance, and with the limitations of perception. I cannot overcome my status as a body---that is, as a text---and so I cannot undo the necessity that my life is an incarnation of my philosophy, and that my philosophy is a surrogate instance of my life. No matter how distant my philosophical projects seem to be from my life, they are wholly constituted as autobiographical exercises. (shrink)

This essay explores an unstudied compendium to Margaret Cavendish’s 1655 Philosophical and Physical Opinions that was composed by the learned physician, plant anatomist, and secretary of the Royal Society, Nehemiah Grew. Despite the growing body of scholarship on Cavendish, minimal attention has been dedicated to her early reception. But studying this compendium provides some fascinating insights into how one of the foremost thinkers of her day read, emended, and manipulated her ideas. I propose that Grew turned to Cavendish’s work when (...) developing his substance theory in the years leading up to the publication of his 1682 The Anatomy of Plants, but that shifting intellectual tides led him to critique her version of material vitalism in his 1701 Cosmologia Sacra. Supported by a transcription of the compendium as an appendix, this article also sheds light on the role that early modern pedagogical techniques and memory tools played in shaping concepts of matter and mind. (shrink)

The downsides of monogamy are felt by most people engaged in long-term relationships, including restrictions on self-discovery, limits on friendship, sexual boredom, and a circumscribed understanding of intimacy. Yet, a "happily ever after" monogamy is assumed to be the ideal form of romantic love in many modern societies: a relationship that is morally ideal and will bring the most happiness to its two partners. -/- In Why It’s OK to Not Be Monogamous, Justin L. Clardy deeply questions these assumptions. (...) He rejects the claim that non-monogamy among honest, informed and consenting adults is morally impermissible. He shows instead how polyamorous relationships can actually be exemplars of moral virtue. The book discusses how social and political forces sustain and reward monogamous relationships. The book defines non-monogamy as a privative concept; a negation of monogamy. Looking at its prevalence in the United States, the book explains how common criticisms of non-monogamy come up short. Clardy argues, as some researchers have recently shown―monogamy relies on continually demonizing non-monogamy to sustain its moral status. Finally, the book concludes with a focus on equality, asking what justice for polyamorous individuals might look like. (shrink)

This essay extends my “invisible disagreement” argument for Color Realism (2017) to formulate an argument for Direct Realism. It uses a variation of an “inverted qualia” thought experiment to show that successes in intersubjectively validating empirical claims about colors is proof that a nuanced version of Direct Realism is correct.

The phenomenon of ‘plant sleep’ – whereby vegetables rhythmically open and close their leaves or petals in daily cycles – has been a continual source of fascination for those with botanical interests, from the Portuguese physician Cristóbal Acosta and the Italian naturalist Prospero Alpini in the sixteenth century to Percy Bysshe Shelley and Charles Darwin in the nineteenth. But it was in 1757 that the topic received its earliest systemic treatment on English shores with the prodigious author, botanist, actor, and (...) Royal Society critic John Hill’s The Sleep of Plants, and Cause of Motion in the Sensitive Plant. As the present article aims to illustrate, Hill and his respondents used this remarkable behaviour, exhibited by certain plants, as a lens through which to reassess the nature of vegetables, and to address pressing questions of wider natural philosophical import, particularly the degree of continuity between the structures and functions of plants and animals and whether similar mechanisms necessarily account for related movements in different life forms. These disputes, this paper contends, also had profound methodological implications regarding the proper way to conduct experiments, the extent to which it was acceptable to extrapolate from observations, and the status of causal explanations. (shrink)

Data fraud and selective reporting both present serious threats to the credibility of science. However, there remains considerable disagreement among scientists about how best to sanction data fraud, and about the ethicality of selective reporting. The public is arguably the largest stakeholder in the reproducibility of science; research is primarily paid for with public funds, and flawed science threatens the public’s welfare. Members of the public are able to make meaningful judgments about the morality of different behaviors using moral intuitions. (...) Legal scholars emphasize that to maintain legitimacy, social control policies must be developed with some consideration given to the public’s moral intuitions. Although there is a large literature on popular attitudes toward science, there is no existing evidence about public opinion on data fraud or selective reporting. We conducted two studies—a survey experiment with a nationwide convenience sample, and a follow-up survey with a representative sample of US adults —to explore community members’ judgments about the morality of data fraud and selective reporting in science. The findings show that community members make a moral distinction between data fraud and selective reporting, but overwhelmingly judge both behaviors to be immoral and deserving of punishment. Community members believe that scientists who commit data fraud or selective reporting should be fired and banned from receiving funding. For data fraud, most Americans support criminal penalties. Results from an ordered logistic regression analysis reveal few demographic and no significant partisan differences in punitiveness toward data fraud. (shrink)

The existence of phenomenally conscious mental states is often taken to be obvious from first-person experience. Sytsma and Machery (2010) argued that if that is the case, then laypeople should classify mental states in the same way that philosophers typically do, treating states like seeing red and feeling pain similarly. We then presented evidence that they do not. This finding is interesting in its own right, however, outside of any implications for the philosophical debates concerning phenomenal consciousness. As such, we (...) attempted to explain our finding, presenting evidence that lay mental state ascriptions depend on valence judgments (that the mental states have a hedonic value for the subject). In this paper, I present new evidence that suggests against this valence account. I then provide evidence for a new explanation based on previous findings that laypeople tend to view both colors and pains as mind-independent qualitiesof objects outside the mind/brain. (shrink)

In his recent book Error Theory: History, Critique, Defence, Jonas Olson attempts to revive the argument from queerness originally made famous by J.L. Mackie. In this paper, we do three things. First, we eliminate four untenable formulations of the argument. Second, we argue that the most plausible formulation is one that depends crucially upon considerations of parsimony. Finally, we evaluate this formulation of the argument. We conclude that it is unproblematic for proponents of moral non-naturalism—the target of the argument from (...) queerness. (shrink)

Functionalist theories have been proposed for just about everything: mental states, dispositions, moral properties, truth, causation, and much else. The time has come for a functionalist theory of nothing. Or, more accurately, a role functionalist theory of those absences that are causes and effects.

In sketching a preliminary scientific theory of religion, Atran & Norenzayan (A&N) generally agree with cognitive scientists of religion in the factors that coalesce to form religion. At times they misrepresent, however, the notion of “counterintuitive” concepts as they apply to religious concepts, confusing counterintuitive with counterfactual, category mistakes, and logical contradiction.

Kant calls his Transcendental Deduction "the most difficult thing that could ever be undertaken on behalf of metaphysics" (4:260). Readers have found it not just difficult but downright impossible. I will address two long-standing problems. First, Kant seems to contradict his conclusion at the outset of his proof. He does so in both the 1781 and 1787 editions of his Critique of Pure Reason. Second, Kant seems to argue for his single conclusion twice over in his Critique's 1787 edition. I (...) will propose novel solutions by considering why Kant's Deduction is more difficult than his Transcendental Aesthetic, on one hand, and his 1770 Inaugural Dissertation, on the other. My broader aim is to oppose a subjectivist interpretation of Kant's Deduction with an original interpretation. On the subjectivist interpretation, Kant holds that the categories apply to appearances because appearances necessarily conform to our subjective forms of the understanding. I will argue to the contrary in addressing the first problem. On my interpretation, the reason that the categories apply to appearances is not just because of what our subjective forms of the understanding are. It is because of what objects are as appearances. What are objects as appearances, for Kant? In addressing the second problem, I will argue that they are objects of our possible intuitions and judgments. (shrink)

Contrastivism about ‘ought’ holds that ‘ought’ claims are relativized, at least implicitly, to sets of mutually exclusive but not necessarily jointly exhaustive alternatives. This kind of theory can solve puzzles that face other linguistic theories of ‘ought’, via the rejection or severe restriction of principles that let us make inferences between ‘ought’ claims. By rejecting or restricting these principles, however, the contrastivist takes on a burden of recapturing acceptable inferences that these principles let us make. This paper investigates the extent (...) to which a contrastivist can do this. (shrink)

This paper argues that Nietzsche is a panpsychist. Panpsychism holds that mental features are ubiquitous and fundamental in reality. I first argue that Nietzsche’s rejection of Cartesian dualism leads him to substance monism. To better understand his monism, I examine Nietzsche’s rejection of Newtonian atomism. Nietzsche holds that bundles of forces, or will to power, are more fundamental than hard, extended atoms. So, will to power is fundamental. I then investigate Nietzsche’s remarks on organic and inorganic nature to show that (...) he believes both are will to power. So, will to power is ubiquitous. The final step to panpsychism is to show that Nietzsche believes will to power exhibits mental qualities. If all goes well, it should emerge that Nietzsche thinks mental features are fundamental and ubiquitous in reality. (shrink)

What does it mean to say that mind-body dualism is causally problematic in a way that other mind-body theories, such as the psychophysical type identity theory, are not? After considering and rejecting various proposals, I advance my own, which focuses on what grounds the causal closure of the physical realm. A metametaphysical implication of my proposal is that philosophers working without the notion of grounding in their toolkit are metaphysically impoverished. They cannot do justice to the thought, encountered in every (...) introductory class in the philosophy of mind, that dualism has a special problem accounting for mental causation. (shrink)

The focus of this paper is a fascinating but hitherto unstudied 1742 manuscript treatise by Johannes Daniel Schlichting (1705–1765) titled “Sapientiæ Problema” that contains something extremely rare in the mid-eighteenth century: a full-blown speculative cosmogony. As this article reveals, Schlichting developed a distinctive vital liquid matter in an effort to account for the generation of all natural bodies and combat the stamina-based theories that were dominant in his day. He hoped that his treatise would be published in the Philosophical Transactions (...) of the Royal Society, but an accompanying abridgment by the FRS Henry Baker (1698–1774) strongly implies that Schlichting’s speculative bent and desire to divulge causal explanations were unacceptable to the Englishman and generally ill-suited to the intellectual climate of mid-century England. (shrink)

Nearly every common theory of truth has been attributed to Nietzsche, while some commentators have argued that he simply has no theory of truth. This essay argues that Nietzsche's remarks on truth are best situated within either the coherence or pragmatist theories of truth rather than the correspondence theory. Nietzsche's thoughts on truth conflict with the correspondence framework because he believes that the truth conditions of propositions are constitutively dependent on our actions.

Nietzsche appears to adopt a radical Kantian view of objects called constructivism, which holds that the existence of all objects depends essentially on our practices. This essay provides a new reconstruction of Nietzsche's argument for constructivism and responds to five pressing objections to reading Nietzsche as a constructivist that have not been addressed by commentators defending constructivist interpretations of Nietzsche.

This book defends the controversial view that Nietzsche is a metaphysician against a tendency to sever Nietzsche from metaphysical philosophy. It shows that for Nietzsche the questions, answers, methods, and subject matters of metaphysics are not only perfectly legitimate, but also crucial for understanding the world and our place within it.

Must principles of justice be practical? Some political philosophers, the “implementers,” say yes. Others, the “idealists,” say no. Despite this disagreement, the implementers and idealists agree on what “practical” means, subscribing to the “implementation-prediction” conception of practicality. They also seem to agree that principles of so-called “ideal theory” need not be IP-practical. The implementers take this as a reason to reject ideal theory as an approach to principles of justice, while the idealists do not. In this paper, I argue that (...) we should reject the IP conception of practicality. The implementers make a mistake, then, by requiring principles of justice to be IP-practical. But the idealists make a mistake, too, by rejecting in general the requirement that principles of justice be practical. For there is a plausible alternative conception of practicality that political philosophers should accept: the “experimentation-learning” conception. EL-practicality makes for a more realistic and epistemically accessible standard of practicality, and thus should be welcomed by the realistically-inclined implementers. It also preserves a crucial role for ideal theory, so should be welcomed by the idealists, too. (shrink)

In his recent book Constructing the World, David Chalmers defends A Priori Scrutability, the thesis that there is a compact class of truths such that for any truth p, a Laplacian intellect could know a priori that if the truths in that class hold, then p. In this paper, I develop an objection to Chalmers’ thesis that focuses on his treatment of a so-called that’s-all truth. My objection draws on Theodore Sider’s discussion of border-sensitive properties, and also on the causal (...) phenomenon of double prevention. (shrink)

One popular theodicy says that good can’t exist without evil, and so God must allow evil in order to allow good. Call this the counterpart theodicy. The counterpart theodicy relies on a metaphysical claim about existence—good cannot exist without evil. A second popular theodicy says that we would be unable to know/recognize/appreciate the good without evil, and so God is forced to allow evil in order to allow for such appreciation. Call this the appreciation theodicy. The appreciation theodicy relies on (...) an epistemological claim about recognition or appreciation—we are unable to know/recognize/appreciate good without evil (even if it is possible for good to exist without evil). Determining whether either of these theodicies is a success requires a careful discussion of whether either meets the conditions on a successful theodicy. I argue that both fail. (shrink)

ABSTRACT There is a disagreement over how to understand Nietzsche's view of science. According to what I call the Negative View, Nietzsche thinks science should be reconceived or superseded by another discourse, such as art, because it is nihilistic. By contrast, what I call the Positive View holds that Nietzsche does not think science is nihilistic, so he denies that it should be reinterpreted or overcome. Interestingly, defenders of each position can appeal to Nietzsche's understanding of naturalism to support their (...) interpretation. I argue that Nietzsche embraces a social constructivist conception of causality that renders his naturalism incompatible with the views of naturalism attributed to him by the two dominant readings. (shrink)

This article concerns whether Nietzsche is sympathetic to monism about concrete objects, the heterodox metaphysical view that there is exactly one concrete object. I first dispel prominent reasons for thinking that Nietzsche rejects monism. I then develop the most compelling arguments for monism in Nietzsche’s writings and check for soundness. The arguments seem to be supported by the texts, but they have not been developed in the literature. Despite such arguments, I suggest that Nietzsche is actually not sympathetic to monism (...) about objects—but his reasons for siding against monism are not at all obvious. The result should be a new understanding of some of Nietzsche’s fundamental ontological commitments. (shrink)

Nietzsche was persistently concerned with what an object is and how different views of objects lead to different views of facts, causality, personhood, substance, truth, mathematics and logic, and even nihilism. Yet his treatment of objects is incredibly puzzling. In many passages he assumes that objects such as trees and leaves, tables and chairs, and dogs and cats are just ordinary entities of experience. In other places he reports that objects do not exist. Elsewhere he claims that objects exist, but (...) as mere bundles of forces. And sometimes he proposes that we bring all objects into existence. Nietzsche’s writings, then, appear to support various secondary readings, which are jointly inconsistent. My chief aim is to present and defend the reading that Nietzsche embraces constructivism about objects, the neo-Kantian view that all objects are socially constructed. I first explain this view and argue that all non-constructivist readings are not supported by Nietzsche’s texts. I then present Nietzsche’s object constructivism, reconstruct his argument for the position, and defend it from internal objections. I finish by suggesting that Nietzsche might have embraced such a radical conception of objects because it plays a crucial role in overcoming nihilism. (shrink)

The rapid but disproportionate growth of the cognitive science of religion in some areas, coupled with the desire to meaningfully connect with more traditional, function-inspired classifications, has left the field with an incomplete and sometimes inconsistent typology of religious and related actions. We address this shortcoming by proposing a systematic typology of counterintuitive actions based on their cognitive representational structures. This typology may serve as the framework of a research program that seeks to establish psychologically, whether each class of events (...) receives different cognitive treatment within a given context and similar representation across contexts; and anthropologically, whether the different classes are characterized by different performance frequencies, social functions, and kinds of interpretations, making them useful explanatory and predictive distinctions. (shrink)

This work presents two theoretical challenges to Conceptual Metaphor Theory (CMT). The first argument shows CMT’s foundational _Conceptual Claim—_that abstract concepts are necessarily structured by concrete concepts—entails the blurring of the literal–figurative distinction, which calls into question the legitimacy of standard methods of metaphor identification used in CMT. The second argument aims at the _Linguistic Claim—_that conceptual metaphors are necessary for metaphorical language—by showing that conceptual metaphors are neither necessary nor sufficient for linguistic metaphors and that, therefore, the existence of (...) conceptual metaphors cannot be validly inferred from the presence of their linguistic counterparts. In light of the arguments put forward, the CMT theorist is forced to accept one of four options: (A) hold on to both the Conceptual Claim and Linguistic Claim, by adequately addressing problems presented here, (B) discard the Conceptual Claim and give up the theory, (C) discard both claims and give up the theory, or (D) accept the Conceptual Claim but reject the Linguistic Claim and abandon the methods of discovering conceptual metaphors through analysis of figurative language. I argue that the only tenable option is D. (shrink)

Epistemicists claim that vague predicates have precise but unknow- able cutoffs. I argue against against the standard, Williamsonian, answer, that appeals to metalinguistic safety: we can know that p even if our true belief that p is metalinguistically lucky. I then propose that epistemicists should be diagonalized epistemicists and show how this alternative formulation of the view avoids the chal- lenge. However, in an M. Night Shyamalan-style twist, I then argue we should not be diagonalized epistemicists either.

According to one influential tradition, to assert that p is to express a belief that p. Yet how do assertions provide strong evidence for belief? Philosophers have recently drawn on evolutionary biology to help explain the stability of assertive communication. Mitchell Green suggests that assertions are akin to biological handicaps. Peter Graham argues against the handicap view and instead claims that the norms of assertion are deterrents. Contra Graham, I argue that both mechanisms may play a role in assertive communication, (...) although assertions as deterrents will often fail to provide strong evidence for belief. (shrink)