The big-fish-little-pond effect (BFLPE) is the tendency for students to evaluate themselves more favourably when they have high rank in a low rank school than low rank in a high rank school. Research has documented the BFLPE on experienced emotions. We conducted three studies that examined forecasts of how the BFLPE influences other people’s emotions (i.e. empathic forecasts). In Study 1, participants received performance feedback about themselves or another person and reported their own affect or anticipated the other person’s affect. (...) Results extended the BFLPE to empathic forecasting. Moreover, forecasters anticipated that the BFLPE had a stronger influence on negative emotion than it actually did. Study 2 tested whether neglect of group rank underlies the BFLPE in empathic forecasting. Empathic forecasts were strongly influenced by another person’s rank in their group, but only weakly influenced by group rank. Study 3 tested whether extremity of group ranks exacerbates the BFLPE in empathic forecasting. Empathic forecasts were especially favourable (unfavourable) when a target had very high (low) rank in a very low (high) rank group. These data support the BFLPE in empathic forecasting, but also illustrate ways in which it is both similar to and different from actual experience of the effect. (shrink)

There is a growing consensus among philosophers that hope is a moral virtue: the virtuously hopeful person experiences the right amount of hope for the right things. This moralization of hope presents us with a puzzle. The historical consensus is that hope is a passion and hope is a theological virtue, not a moral virtue. Thomas Aquinas, the philosopher who wrote most extensively on hope, offers an explanation for why hope is not a moral virtue. The aim of this paper (...) is argue that Aquinas is right in thinking that hope is not a moral virtue.1. (shrink)

In ‘Dilemma for Appeals to the Moral Significance of Birth’, we argued that a dilemma is faced by those who believe that birth is the event at which infanticide is ruled out. Those who reject the moral permissibility of infanticide by appeal to the moral significance of birth must either accept the moral permissibility of a late-term abortion for a non-therapeutic reason or not. If they accept it, they need to account for the strong intuition that her decision is wrong (...) as well as deny the underlying normative principle that killing a viable fetus requires good reason, and not wanting to care for the child when the child could be easily placed for adoption is not a good enough reason to abort. If they reject the moral permissibility of the late-term abortion, they need to explain why her decision is wrong. Doing so, however, will undermine their own project of denying infanticide by appeal to birth. Walter Veit argues that the dilemma relies too much on intuition and does not live up to biological continuity. We explain why his criticisms are unconvincing. (shrink)

Would the virtuous person eat animals? According to some ethicists, the answer is a resounding no, at least for the virtuous person living in an affluent society. The virtuous person cares about animal suffering, and so, she will not contribute to practices that involve animal suffering when she can easily adopt a strict plant-based diet. The virtuous person is temperate, and temperance involves not indulging in unhealthy diets, which include diets that incorporate animals. Moreover, it is unjust for an animal (...) to be killed for food when this is unnecessary. By contrast, I argue that the virtuous person in an affluent society would eat animals, at least sometimes. I explain how the very virtues thought to motivate “virtuous modest veganism”—compassion, temperance, and justice—motivate the virtuous person to consume some animals. (shrink)

Prabhpal Singh has defended a relational account of the difference in moral status between fetuses and newborns. Newborns stand in the parent-child relation while fetuses do not, and standing in the parent-child relationship brings with it higher moral status for newborns. Orphans pose a problem for this account because they do not stand in a parent-child relationship. I argue that Singh has not satisfactorily responded to the problem.

In _Discrimination Against the Dying_, Philip Reed argues, among other things, that ‘right to die laws (euthanasia and assisted suicide) also exhibit terminalism when they restrict eligibility to the terminally ill’. 1 Additionally, he suggests ‘the availability of the option of assisted death only for the terminally ill negatively influences the terminally ill who wish to live by causing them to doubt their choice’. 1 I argue that on scrutiny, neither of these two points hold. First, we routinely limit a (...) course of treatment to only those for whom we believe the treatment might provide a benefit. Typically, we do not think hastening death provides benefit when an individual is not experiencing a terminal illness. Thus, I conclude, either all treatments are discriminatory, or medical aid in dying is not. Second, I argue that permitting individuals to refuse or remove life sustaining care may very well cause... (shrink)

Accounts of practical deliberation tend to overlook any possible role for hope. I offer an argument showing that hope sets the ends of our practical deliberations and is thereby necessary for practical deliberation. It is because I hope to summit the mountain by midday that I deliberate about how to do so. Absent this particular hope, I could not deliberate about how to summit the mountain by midday.

In this article, we examine the advantages of simple metacognitive capabilities in a repeated social dilemma. Two types of metacognitive agent were developed and compared with a non-metacognitive agent and two fixed-strategy agents. The first type of metacognitive agent takes the perspective of the opponent to anticipate the opponent's future actions and respond accordingly. The other metacognitive agent predicts the opponent's next move based on the previous moves of the agent and the opponent. The modeler agent achieves better individual outcomes (...) than a non-metacognitive agent and is more successful at encouraging cooperation. The opponent-perspective agent, by contrast, fails to achieve these outcomes because it lacks important information about the opponent. These simple agents provide insights regarding modeling of metacognition in more complex tasks. (shrink)

Hope is important in Thomas Aquinas’s account of the emotions: it is one of the four primary emotions and the first of the irascible emotions. Yet his account of hope as a movement of the sensory appetite toward a future possible good that is arduous to attain appears to be overly restrictive, for people often hope for things that are not cognized as arduous. This paper examines Aquinas’s reasons for limiting hope to arduous goods.

Thirty-two vegans were interviewed in order to examine the reasons for becoming vegan, the sustaining motivation to persist, the interpersonal and intrapersonal impact of the diet and associated practices, and the vegans’ assessment of omnivores’ eating practices. Interviews were analyzed using a model that diagrams the process of becoming vegan provided by McDonald . Participants reported strained professional and personal relationships as a result of their diet and beliefs. Vegan diets were associated with an increase in physical, eudaemonic, and spiritual (...) well-being. (shrink)

Facial blushing involves a reddening of the face elicited in situations involving unwanted social attention. Such situations include being caught committing a social transgression, which is typical...

This article explores at least two dominant critiques of assisted dying from a disability rights perspective. In spite of these critiques, I conclude that assisted dying ought to be permissible. I arrive at the conclusion that if we respect and value people with disabilities, we ought to permit assisted dying. I do so in the following manner. First, I examine recent changes in legislation that have occurred since the Royal Society of Canada Expert Panel on End-of-Life Decision-Making report, published in (...) this journal. I suggest that these changes are likely to only strengthen opposition to assisted dying from disability rights activists and people with disabilities. Second, I focus on respect for people with disabilities and in particular, respect for their autonomy and decision-making abilities. Third, I explore the opposition to assisted dying that focuses on risk and the vulnerability of people with disabilities. Here I suggest that this risk ought not to be of special concern. Ultimately, I conclude that upholding respect for the disabled requires the legalization of assisted dying, rather than the denial of access in a misguided effort to protect people with disabilities. (shrink)

In the quantum-Bayesian approach to quantum foundations, a quantum state is viewed as an expression of an agent’s personalist Bayesian degrees of belief, or probabilities, concerning the results of measurements. These probabilities obey the usual probability rules as required by Dutch-book coherence, but quantum mechanics imposes additional constraints upon them. In this paper, we explore the question of deriving the structure of quantum-state space from a set of assumptions in the spirit of quantum Bayesianism. The starting point is the representation (...) of quantum states induced by a symmetric informationally complete measurement or SIC. In this representation, the Born rule takes the form of a particularly simple modification of the law of total probability. We show how to derive key features of quantum-state space from (i) the requirement that the Born rule arises as a simple modification of the law of total probability and (ii) a limited number of additional assumptions of a strong Bayesian flavor. (shrink)

Although populism is an ideologically fluid political vehicle, it is not one that is intrinsically anti-business. Indeed, different varieties of populist parties may encourage business activity for utilitarian ends, but with their own ideas on what businesses should be doing. This reality implies that initiatives not related to national greatness or priorities as defined by the populist leadership may be viewed as redundant. Key among such initiatives would be corporate social responsibility (CSR). In a populist environment, it is possible that (...) firms may divert resources away from broad-based CSR under pressure from populist governments. This article explores the relationship between populist governance and CSR with an econometric examination of over a thousand firms in 13 countries under both pro- and anti-business populist governments at varying times from 2012 to 2020. Using dynamic panel data methods, we find strong evidence that firms substitute away significantly from CSR under populism. This effect grows significantly larger under anti-business populists. (shrink)

I consider the question of how literally one can construe the “gauge argument,” which is the canonical means of understanding the putatively central import of local gauge symmetry principles for fundamental physics. As I argue, the gauge argument must be afforded a heuristic reading. Claims to the effect that the argument reflects a deep “logic of nature” must, for numerous reasons I discuss, be taken with a grain of salt.

Patients and physicians do not know the cost of medical procedures. Opaque medical billing thus contributes to exorbitant, rising medical costs, burdening the healthcare system and individuals. After criticizing two proposed solutions to the problem of opaque medical billing, I argue that the Centers for Medicare and Medicaid Services should pursue a rule requiring that patients be informed by the physician of a reasonable out-of-pocket expense estimate for non-urgent procedures prior to services rendered.

Societal pressures, accreditation organizations, and licensing agencies are emphasizing the importance of ethics in the engineering curriculum. Traditionally, this subject has been taught using dogma, heuristics, and case study approaches. Most recently a number of organizations have sought to increase the utility of these approaches by utilizing the Internet. Resources from these organizations include on-line courses and tests, videos, and DVDs. While these individual approaches provide a foundation on which to base engineering ethics, they may be limited in developing a (...) student’s ability to identify, analyze, and respond to engineering ethics situations outside of the classroom environment. More effective approaches utilize a combination of these types of approaches. This paper describes the design and development of an internet based interactive Simulator for Engineering Ethics Education. The simulator places students in first person perspective scenarios involving different types of ethical situations. Students must gather data, assess the situation, and make decisions. This requires students to develop their own ability to identify and respond to ethical engineering situations. A limited comparison between the internet based interactive simulator and conventional internet web based instruction indicates a statistically significant improvement of 32% in instructional effectiveness. The simulator is currently being used at the University of Houston to help fulfill ABET requirements. (shrink)

The present study examines section five of Poroi and Xenophon’s proposal to restore the reputation of Athens. After outlining his plan for ‘justly’ supplying the dēmos with sufficient sustenance in Poroi 1-4, section 5 addresses the desire to regain hegemony after Athens had lost the Social War. Xenophon does not adopt an anti-imperialist stance; instead he seeks to re-align imperial aspirations with Athenian ideals and earlier paradigms for securing hegemony. Xenophon’s ideas in Poroi are contextualized with consideration for his ‘Socratic’ (...) distinction between tyranny and kingship, as well as his wider advice for ruling well. It is shown that his proposals for securing the consent of the allies reiterates ideas that Xenophon outlines across his corpus, especially Hiero and Cyropaedia. In Poroi Xenophon therefore applies his political thought in an attempt to re-direct Athenian ambitions away from policies that prompted charges of being a ‘tyrant polis’ and towards ‘legitimate rule’. (shrink)

Religion has become a vital resource for attempts to rethink the meaning of the political. This article rehearses the efforts of two recent figures, René Girard and Giorgio Agamben, to transform the political by renewing its connection to religion. Both thinkers struggle to escape politics as defined by Carl Schmitt's friend/enemy distinction. Girard and Agamben do clash ideologically, but their inquiries into sacrifice and messianism take similar courses. Regarding origins, Girard argues for the sacrificial crisis as the common parent to (...) religion and politics. Conversely, for Agamben, the Roman figure of homo sacer distinguishes politics from religion. With respect to the future, Girard's messianism installs Christian belief as the only way to move beyond violence. By contrast, Agamben steers Pauline messianism toward the efforts to displace sovereignty and reopen the political. I conclude that Agamben breaks with Schmitt while Girard reinscribes his politics at a higher level. Key Words: Giorgio Agamben • Rey Chow • Christianity • René Girard • homo sacer • messianism • politics • sacred • sacrifice • Carl Schmitt. (shrink)

I consider the question of how literally one can construe the “gauge argument,” which is the canonical means of understanding the putatively central import of local gauge symmetry principles for fundamental physics. As I argue, the gauge argument must be afforded a heuristic reading. Claims to the effect that the argument reflects a deep “logic of nature” must, for numerous reasons I discuss, be taken with a grain of salt.

Professional engineers are under increasing pressure to practice in an environmentally sensitive way. To prepare engineers for this new reality, changes in engineering education are needed. For example, engineering hydrology has traditionally been taught with an emphasis on the interpretation of numerical data bout rainfall and runoff in watersheds. However, to do environmentally sensitive hydrology work, it is necessary to also understand the life forms that share the watershed. In 1997, a project was undertaken in the Department of Civil Engineering (...) at the University of Toronto to enhance an introductory hydrology course by adding information about how hydrological phenomena affect fish. Through carefully structured assignments and exam questions, an assessment was made of the effectiveness of the enhancements in increasing students’ awareness of the life context of hydrology. The project has resulted in a commitment to increased environmental information in the hydrology curriculum, and the implementation of an assessment process for all students, to monitor changes in their environmental knowledge and attitudes. It has also raised questions about ultimate objectives in engineering education. (shrink)

A collaborative undertaking between an artist and a philosopher, this monograph attempts to deepen our understanding of "contemplative seeing" by addressing the works of Plato, Thoreau, Heidegger, and more. The authors explore what it means to "see" reality and contemplate how viewing reality philosophically and artfully is a form of spirituality. In this way, by developing a new conception of active visual engagement, the authors propose a way of seeing that unites both critical scrutiny and spiritual involvement, as opposed to (...) simple passive reception. (shrink)

School climate is a multidimensional construct of the quality of a student’s academic environment, often subsuming dimensions such as safety, instructional practices, social relationships, school facilities, and school connectedness. Positive school climate has beneficial effects on a wide range of adjustment variables in youth, including academic achievement, mental health, school attendance and graduation, and school-based behavior. Studies regarding school climate assessment have burgeoned in recent years but remain marked by limited sample sizes, narrow developmental levels, restricted items, unclear psychometric strength (...) across multiple demographic groups, and lack of integration with key student education contextual factors such as academic mindset and social emotional learning. The present study evaluated a comprehensive measure of aspects of school climate, academic mindset, and social emotional learning in a sample of 105,379 diverse students (Mage = 13.47 years; SD = 2.47). The 9-factor structure of the School Climate and Academic Mindset Inventory was supported via confirmatory factor analysis. A trimmed model displayed adequate goodness-of-fit for males and females, younger age groups, and European American, biracial/multiracial, Hispanic, Native American, and Native Hawaiian/Pacific Islander students. The trimmed model was slightly less strong for older age groups as well as for African American and Asian American students. The scale may be useful for assessing school climate interventions, longitudinal climate patterns, and school-based algorithms of future performance, though additional validation of the scale remains necessary. (shrink)

Scholars have traditionally interpreted Hipponax fragment 128 as an epic parody designed to belittle the grand pretensions and gluttonous habits of his enemy. I suggest, however, that this traditional reading ultimately falls short because of two unexamined assumptions: that the meter and diction of the fragment are exclusively meant to recall epic narrative and not any other early hexametrical genre, and that the descriptive epithets in lines 2 and 3 are the ad hoc comic creations of the poet and simply (...) refer to the table manners of a glutton or a parasite. I argue instead that this fragment in several ways reflects the language, the meter and the performative goal of hexametrical chants or incantations designed to expel harmful famine demons or to escort human scapegoats from the city. I also suggest that the vivid and somewhat comic descriptions of the enemy in fragment 128 probably do not aim at his personal eating disorders, but rather they are drawn from two interrelated and generic features of archaic Greek thought: a tradition of describing famine-demons as insatiable eaters, and a popular theme in Greek invective which demonizes political enemies as rapacious pests who threaten to gobble up the commonwealth of the city and who therefore must be expelled from the community, precisely like a famine-demon. (shrink)

Abstract Jeffrey Koperski claims in Zygon (2008) that critics of Intelligent Design engage in fallacious ad hominem attacks on ID proponents and that this is a “bad way” to engage them. I show that Koperski has made several errors in his evaluation of the ID critics. He does not distinguish legitimate, relevant ad hominem arguments from fallacious ad hominem attacks. He conflates (or equates) the logical use of valid with the colloquial use of valid. Moreover, Koperski doesn't take seriously the (...) legitimate concerns of the ID critics, and in doing so, commits the straw man fallacy. In the end, I show that no one disagrees with the criticism of improper use of fallacies as methods of evaluation. But what constitutes proper, relevant evaluation of the ID theorists and their motivation is a matter of dispute. And sometimes attacking a person as a method of evaluation is justified, and thus is not fallacious. The definition of ad hominem arguments as either a “good way” or a “bad way” rests on justification, which I argue ID opponents have. The basis for these good objections relies on the motivation many Christians have to share their faith with non-Christians, which they call the “great commission.”. (shrink)

If a colleague of mine, whose opinion I respect, disagrees with me about some claim, this might give me pause regarding my position on the matter. The Equal Weight view proposes that in such cases of peer disagreement I ought to give my colleague’s opinion as much weight as my own, and decrease my certainty in the disputed claim. One prominent criticism of the Equal Weight view is that treating higher-order (indirect) evidence in this way invariably swamps first-order (direct) evidence. (...) While the opinions of our peers matter in our deliberations, the Equal Weight view counter-intuitively requires that evidence of mere disagreement is more important than standard kinds of evidence. I offer a proposal for how we should idealize epistemic agents that identifies the variable feature of disagreements that accounts for the shifting significance of direct and indirect evidence in different disagreement contexts. Specifically, by idealizing epistemic agents as deriving functions that characterize the non-subjective relationship between a body of evidence and the reasonableness of believing the various propositions supported by that evidence, we can accommodate the intuition to compromise that motivates the Equal Weight view, without accepting the counter-intuitive results. (shrink)

Few think that Kant’s moral theory can provide a defensible view in the area of environmental ethics because of Kant’s well-known insistence that all nonhumans are mere means. An examination of the relevant arguments, however, shows that they do not entitle Kant to his position. Moreover, Kant’s own Formula of Universal Law generates at least one important and basic duty which is owed both to human beings and to nonhuman animals. The resulting Kantian theory not only is sounder and more (...) intuitive than the original, but also boasts some notable theoretical advantages over some of the most prominent views in environmental ethics. (shrink)

Une gemme en agate peu étudiée provenant d’Anapa, datée de la période impériale, présente un grand intérêt, dans la mesure où elle diffère de la plupart des gemmes magiques par sa forme sphérique, sa grande taille et son contenu : elle commence par une référence aux rituels traditionnels grecs d’expulsion et se termine par une liste des parties de la tête humaine semblable à celle que l’on trouve dans un manuel médical hippocratique. La gemme ne serait pas une amulette, comme (...) les éditeurs précédents l’ont supposé, mais plutôt un manuel miniature contenant des instructions pour la fabrication d’amulettes. (shrink)

Direct Realism is the view that human perception takes physical entities and their mind-independent properties as immediate objects. Although this thesis is supported by common sense, many argue that it can be dismissed on philosophical or quasi-scientific grounds. This essay attempts to defend Direct Realism against one such argument, which I call the “Problem of Secondary Qualities,” using the ideas of Scottish Common Sense philosopher Thomas Reid. The first chapter of this work offers a detailed introduction to the Problem of (...) Secondary Qualities. The Problem of Secondary Qualities arises from the claim that science has shown that physical objects do not possess secondary qualities. This is a problem for Direct Realism because secondary qualities are certainly possessed by at least some perceivable objects. As I present it, the Problem rests on three commitments: that an analysis of secondary quality perceptions should extend to perception in general, that we perceive secondary qualities, and that physical objects do not possess secondary qualities without our perceptions of them. I conclude that Direct Realism requires an account of secondary qualities on which secondary qualities are perceiver-independent but identifiable with other causally relevant properties. In Chapter Two, I introduce Thomas Reid’s doctrine of primary and secondary qualities, in the context of his theory of perception, as a viable response to the Problem of Secondary Qualities. On Reid’s view, secondary qualities are both perceiver-independent and identical to scientific properties, and Reid offers many useful conceptual resources for responding to objections. Most important are Reid’s claims that sensation or sense experience is casually related to, but not essential for, perception and that our perceptions of secondary qualities give us very little knowledge concerning their natures. The final chapter shows how the Reidian theory holds up against four key objections to accounts of secondary qualities on which they may be identified with perceiver-independent, scientific properties. In most cases, the Reidian approach finds solutions without compromising our intuitions or received opinions. (shrink)

It is a seemingly innocuous fact that people learn from the testimony of authorities. Children learn from parents, students learn from teachers, and laypeople learn from experts. What makes this appearance a little less innocent, however, is that some of these same people would have believed sources of testimony that are not authoritative, e.g., unreliable peers and charlatans. Since such hearers of testimony could form as many false beliefs as true ones, they appear to be unreliable consumers of testimony. Therefore, (...) we might be tempted to question whether such hearers really do learn from authorities on account of their apparent unreliability. The standard response to this conflict of intuitions (henceforth referred to as “Goldberg’s puzzle”) is to affirm the reliability of the consumers of testimony by excluding problematic speakers from the type of testimonial exchange in which the hearer is engaged. I will argue that the standard response is ad hoc because it does not provide a principled basis on which to identify the type of testimonial exchange in which the hearer is engaged. In order to improve the standard response, I will argue that conceiving of the relevant testimonial exchanges as achievements of joint agency requires holding fixed the practical identities of both hearer and speaker across the relevant worlds that are being used to evaluate the reliability of the testimonial exchange according to a standard possible worlds semantics for counterfactuals and that such a characterization of the modal space provides a principled basis for solving Goldberg’s puzzle. (shrink)

One of the next steps of integrating Pentecostal spirituality with the wider Christian spiritual tradition is to consider further glossolalia’s relationship to forms of prayer with a longer and more firmly established history. While some initial attempts to do so have connected glossolalia more closely to mystical prayer, there is ground for seeing some occasions of glossolalia also as ascetical prayer. Pentecostals and Catholics are particularly equipped to support this claim, if they can transcend some of their own typical views (...) of glossolalia and accentuate other tendencies within their own traditions. The result may be a clearer understanding of glossolalia for all interested parties, an understanding marked by new insights about glossolalia’s value as an unintelligible form of prayer that is widely available for regular use. (shrink)

The method of Conceptual Analysis makes use of natural language speaker intuitions about the meanings of expressions, and relies on an externalist assumption about meanings—namely, that they can be given in terms of referential relations and truth. This article argues that this widely used methodology in metaphysics is troubled, because the assumed externalist hypothesis about natural language meanings is beset with trenchant obstacles in explaining linguistic phenomena. It argues that the use of Conceptual Analysis in metaphysical investigation inherits the difficulties (...) for the externalist hypothesis generally assumed by metaphysical inquiry. It explores two cases of such investigation that serve to exemplify the breadth of topics susceptible to troubles with the externalist hypothesis regarding natural language meanings: the extended mind hypothesis and the metaphysics of causation. (shrink)

Theory and practice, reason and revelation, ancients and moderns are the key themes running through the eighteen studies of the literature of political philosophy in Reason's Inquisition. Alfarabi is a pivotal figure, but the range is wide, from Plato and Thucydides to Shakespeare and Hobbes, extending to such contemporary figures as Leo Strauss and Eric Voegelin.

I argue that despite criticism from some disability rights organizations, aid in dying is morally permissible. First, I suggest that disability-related concerns can be classified as emerging from one of two kinds of harm: person affecting, and personhood affecting. Second, I examine whether person affecting harm has occurred within those jurisdictions that have legalized aid in dying. I conclude that despite suggestions to the contrary, there is no evidence to demonstrate that people with disabilities have been adversely impacted by legalized (...) medical aid in dying. Third, I entertain these same arguments as a matter of principle and conclude the principled objections should not give us reason for concern. Fourth, I explore whether we have evidence to suggest the presence of increased personhood affecting harm where aid in dying is permissible. I suggest, through a focus on disability support services, that no evidence of social attitudes that diminish the moral worth of disabled people is present. Fifth, I examine whether we ought to have a principled concern with personhood affecting harm emerging from medical aid in dying. I conclude that to the contrary, to deny people with disabilities access to aid in dying constitutes a morally egregious form of personhood affecting harm. (shrink)

Giubilini and Minerva argue that the permissibility of abortion entails the permissibility of infanticide. Proponents of what we refer to as the Birth Strategy claim that there is a morally significant difference brought about at birth that accounts for our strong intuition that killing newborns is morally impermissible. We argue that strategy does not account for the moral intuition that late-term, non-therapeutic abortions are morally impermissible. Advocates of the Birth Strategy must either judge non-therapeutic abortions as impermissible in the later (...) stages of pregnancy or conclude that they are permissible on the basis of premises that are far less intuitively plausible than the opposite conclusion and its supporting premises. (shrink)

Metaphysical investigation often proceeds by way of linguistic meaning. This tradition relies on an assumption about meanings, namely that they can be given in terms of referential relations and truth. Chomsky and others have illustrated the difficulty with this externalist hypothesis regarding natural language meanings, which implies that natural languages are ill‐suited for the purposes of metaphysical investigation. In reply to this discordance between the features of natural languages and the goals of metaphysical investigation, metaphysicians propose that we look to (...) the invented languages used to express our best scientific theories as metaphysical guides, in the hope that these languages are better behaved. I argue that this retreat is beset with similar troubles for the metaphysician. In particular, I argue that central terms in the field of biology, namely ‘gene’ and ‘species’, exhibit a kind of lexical flexibility that renders them, much like their natural language counterparts, ill‐suited for the metaphysician's aims. (shrink)