Over the years, companies have adopted hiring algorithms because they promise wider job candidate pools, lower recruitment costs and less human bias. Despite these promises, they also bring perils. Using them can inflict unintentional harms on individual human rights. These include the five human rights to work, equality and nondiscrimination, privacy, free expression and free association. Despite the human rights harms of hiring algorithms, the AI ethics literature has predominantly focused on abstract ethical principles. This is problematic for two reasons. (...) First, AI principles have been criticized for being vague and not actionable. Second, the use of vague ethical principles to discuss algorithmic risks does not provide any accountability. This lack of accountability creates an algorithmic accountability gap. Closing this gap is crucial because, without accountability, the use of hiring algorithms can lead to discrimination and unequal access to employment opportunities. This paper makes two contributions to the AI ethics literature. First, it frames the ethical risks of hiring algorithms using international human rights law as a universal standard for determining algorithmic accountability. Second, it evaluates four types of algorithmic impact assessments in terms of how effectively they address the five human rights of job applicants implicated in hiring algorithms. It determines which of the assessments can help companies audit their hiring algorithms and close the algorithmic accountability gap. (shrink)

Experimental philosophy uses experimental research methods from psychology and cognitive science in order to investigate both philosophical and metaphilosophical questions. It explores philosophical questions about the nature of the psychological world - the very structure or meaning of our concepts of things, and about the nature of the non-psychological world - the things themselves. It also explores metaphilosophical questions about the nature of philosophical inquiry and its proper methodology. This book provides a detailed and provocative introduction to this innovative field, (...) focusing on the relationship between experimental philosophy and the aims and methods of more traditional analytic philosophy. Special attention is paid to carefully examining experimental philosophy's quite different philosophical programs, their individual strengths and weaknesses, and the different kinds of contributions that they can make to our philosophical understanding. Clear and accessible throughout, it situates experimental philosophy within both a contemporary and historical context, explains its aims and methods, examines and critically evaluates its most significant claims and arguments, and engages with its critics. (shrink)

Artificial intelligence (AI) is expected to revolutionise the practice of medicine. Recent advancements in the field of deep learning have demonstrated success in variety of clinical tasks: detecting diabetic retinopathy from images, predicting hospital readmissions, aiding in the discovery of new drugs, etc. AI’s progress in medicine, however, has led to concerns regarding the potential effects of this technology on relationships of trust in clinical practice. In this paper, I will argue that there is merit to these concerns, since AI (...) systems can be relied on, and are capable of reliability, but cannot be trusted, and are not capable of trustworthiness. Insofar as patients are required to rely on AI systems for their medical decision-making, there is potential for this to produce a deficit of trust in relationships in clinical practice. (shrink)

Ellen Fox and collaborators have produced the most detailed description of healthcare ethics practices in the United States available. Some findings are shocking for anyone committed to promoting q...

Scholars and professional organizations in bioethics describe various approaches to “quality assessment” in clinical ethics. Although much of this work represents significant contributions to the literature, it is not clear that there is a robust and shared understanding of what constitutes “quality” in clinical ethics, what activities should be measured when tracking clinical ethics work, and what metrics should be used when measuring those activities. Further, even the most robust quality assessment efforts to date are idiosyncratic, in that they represent (...) evaluation of single activities or domains of clinical ethics activities, or a range of activities at a single hospital or healthcare system. Countering this trend, in this article we propose a framework for moving beyond our current ways of understanding clinical ethics quality, toward comprehensive quality assessment. We first describe a way to conceptualize quality assessment as a process of measuring disparate, isolated work activities; then, we describe quality assessment in terms of tracking interconnected work activities holistically, across different levels of assessment. We conclude by inviting future efforts in quality improvement to adopt a comprehensive approach to quality assessment into their improvement practices, and offer recommendations for how the field might move in this direction. (shrink)

Can reasoning improve moral judgments and lead to moral progress? Pessimistic answers to this question are often based on caricatures of reasoning, weak scientific evidence, and flawed interpretations of solid evidence. In support of optimism, we discuss three forms of moral reasoning (principle reasoning, consistency reasoning, and social proof) that can spur progressive changes in attitudes and behavior on a variety of issues, such as charitable giving, gay rights, and meat consumption. We conclude that moral reasoning, particularly when embedded in (...) social networks with mutual trust and respect, is integral to moral progress. (shrink)

Neo‐Aristotelian Plenitude is the thesis that, necessarily, any property that could be had essentially by something or other is had essentially by something or other if and only if and because it is instantiated; any essentializable property is essentialized iff and because it is instantiated. In this paper, I develop a partial nonmodal characterization of ‘essentializable' and show it cannot be transformed into a full characterization. There are several seemingly insurmountable obstacles that any full characterization of essentializability must overcome. Moreover, (...) these obstacles threaten other views in the conceptual neighborhood such as Counterpart Theoretic Plenitude and Conceptualist Plenitude. (shrink)

This paper makes two main arguments. First, that to understand analogy in St. Thomas Aquinas, one must distinguish two logically distinct concepts he inherited from Aristotle: one a kind of likeness between things, the other a kind of relation between linguistic functions. Second, that analogy (in both of these senses) plays a relatively small role in Aquinas's treatment of divine naming, compared to the realist semantic framework in which questions about divine naming are formulated and resolved, and on which the (...) coherence of the doctrine of divine simplicity—which is what gives rise to the questions of divine naming in the first place—depends. (shrink)

Disagreement is a hot topic right now in epistemology, where there is spirited debate between epistemologists who argue that we should be moved by the fact that we disagree and those who argue that we need not. Both sides to this debate often use what is commonly called “the method of cases,” designing hypothetical cases involving peer disagreement and using what we think about those cases as evidence that specific normative theories are true or false, and as reasons for believing (...) as such. With so much weight being given in the epistemology of disagreement to what people think about cases of peer disagreement, our goal in this paper is to examine what kinds of things might shape how people think about these kinds of cases. We will show that two different kinds of framing effect shape how people think about cases of peer disagreement, and examine both what this means for how the method of cases is used in the epistemology of disagreement and what this might tell us about the role that motivated cognition is playing in debates about which normative positions about peer disagreement are right and wrong. (shrink)

One of the most pressing ethical challenges facing phase I cancer research centres is the process of informed consent. Historically, most scholarship has been devoted to redressing therapeutic misconception, that is, the conflation of the nature and goals of research with those of therapy. While therapeutic misconception continues to be a major ethical concern, recent scholarship has begun to recognise that the informed consent process is more complex than merely a transfer of information and therefore cannot be evaluated only according (...) to how well an individual understands such information. Other components of decision-making operate independently of understanding and yet still may compromise the quality of informed consent. Notable among these components is unrealistic optimism, an event-specific belief that one has a better chance of receiving benefit than others similarly situated. In this article, we consider responses to interviews with parents who had recently completed an informed consent conference for enrolling their child in a phase I cancer clinical trial to examine how this influence manifests and how investigators might address it during informed consent. (shrink)

We chart how neuroscience and philosophy have together advanced our understanding of moral judgment with implications for when it goes well or poorly. The field initially focused on brain areas associated with reason versus emotion in the moral evaluations of sacrificial dilemmas. But new threads of research have studied a wider range of moral evaluations and how they relate to models of brain development and learning. By weaving these threads together, we are developing a better understanding of the neurobiology of (...) moral judgment in adulthood and to some extent in childhood and adolescence. Combined with rigorous evidence from psychology and careful philosophical analysis, neuroscientific evidence can even help shed light on the extent of moral knowledge and on ways to promote healthy moral development. (shrink)

ABSTRACT In Habgood-Coote : 1033–1065) I argued that we should abandon ‘fake news’ and ‘post-truth’, on the grounds that these terms do not have stable public meanings, are unnecessary, and function as vehicles for propaganda. Jessica Pepp, Eliot Michaelson, and Rachel Sterken and Étienne Brown : 144–154) have raised worries about my case for abandonment, recommending that we continue using ‘fake news’. In this paper, I respond to these worries. I distinguish more clearly between theoretical and political reasons for abandoning (...) a term, assemble more evidence that ‘fake news’ is a nonsense term, and respond to the worries raised by Pepp, Michaelson and Sterken, and Brown. I close by considering the prospects for anti-fascist and anti-authoritarian conceptual engineering. (shrink)

Abstract‘You just believe that because you were raised to believe it!’ is a familiar criticism. Many converts, however, believe the opposite of what they were raised to believe. Does this make them immune to these challenges? I scrutinize this ‘conversion defense’. If these challenges only concern belief genealogy, a certain kind of convert is immune to them. However, these challenges often concern closed-mindedness rather than genealogy. Seen in this light, the convert who is immune to the genealogical critique may bemoresusceptible (...) to these challenges due to her conversion. Her conversion may make her more likely to engage in ‘epistemic self-licensing’ akin to the empirically documented phenomenon of ‘moral self-licensing’. (shrink)

German philosopher Immanuel Kant employs the story of Eve in the Garden of Eden as a way to think about what the development of autonomy in human beings must have involved. In the beginning, our ancestors invariably listened to their instincts, which would have seemed to them, as Kant describes it, like the “voice of God which all animals must obey”. Regardless of whether it has any basis in historical reality, that moment represents for Kant the birth of human autonomy: (...) at some point in our history, our ancestors attained self‐awareness and realized that they could disobey their instincts. There is a limited sense in which the actions that stem from internal sources, whether natural or artificial, are autonomous in the sense of involving internal control. The responsibility is one that every autonomous individual has, for better or worse, whether guest or host, in Westworld or outside of it. (shrink)

Race is often epistemically relevant, but encoding racial stereotypes can lead to implicitly biased behavior. Thus, given the way race structures society, it seems to be impossible to be both epist...

The central focus of this article is to provide a new “Love Argument” for the necessary truth of the Latin “model” of the doctrine of the Trinity—termed “Latin Trinitarianism”—from an a priori standpoint. This new argument, called the Agápēic Argument, will be formulated in light of the metaphysical notions of a “trope,” introduced by D. C. Williams, and “multiple location,” posited by Antony Eagle, and the ethical concept of agápē, proposed by Alexander Pruss. Doing this will provide a specific argument (...) that provides strong grounds for affirming the necessary truth of the Trinity, without, however, being subject to the primary objections that have been often raised against the existing versions of the argument. (shrink)

Decades of psychological research have been aimed at modeling how people learn features and categories. The empirical validation of these theories is often based on artificial stimuli with simple representations. Recently, deep neural networks have reached or surpassed human accuracy on tasks such as identifying objects in natural images. These networks learn representations of real‐world stimuli that can potentially be leveraged to capture psychological representations. We find that state‐of‐the‐art object classification networks provide surprisingly accurate predictions of human similarity judgments for (...) natural images, but they fail to capture some of the structure represented by people. We show that a simple transformation that corrects these discrepancies can be obtained through convex optimization. We use the resulting representations to predict the difficulty of learning novel categories of natural images. Our results extend the scope of psychological experiments and computational modeling by enabling tractable use of large natural stimulus sets. (shrink)

The main message of Neuroethics is that neuroscience forces us to reconceptualize human agency as marvelously diverse and flexible. Free will can arise from unconscious brain processes. Individuals with mental disorders, including addiction and psychopathy, exhibit more agency than is often recognized. Brain interventions should be embraced with cautious optimism. Our moral intuitions, which arise from entangled reason and emotion, can generally be trusted. Nevertheless, we can and should safely enhance our brain chemistry, partly because motivated reasoning crops up in (...) everyday life and in the practice of neuroscience itself. Despite serious limitations, brain science can be useful in the courtroom and marketplace. Recognizing all this nuance leaves little room for anxious alarmism or overhype and urges an emphasis on neurodiversity. The result is a highly opinionated tour of neuroethics as an exciting field full of implications for philosophy, science, medicine, law, and public policy. (shrink)

This paper is a discussion note on Isaacs et al. (2022), who have claimed to offer a new motivation for imprecise probabilities, based on the mathematical phenomenon of non-measurability. In this note, I clarify some consequences of their proposal. In particular, I show that if their proposal is applied to a bounded 3-dimensional space, then they have to reject at least one of the following: (i) If A is at most as probable as B and B is at most as (...) probable as C, then A is at most as probable as C. (ii) Let A ∩ C = B ∩ C = ∅. A is at most as probable as B iff (A ∪ C) is at most as probable as (B ∪ C). But rejecting either statement seems unattractive. (shrink)

This paper explores the use of new scientific techniques to examine collections of historic scientific apparatus and other technological artefacts. One project under discussion uses interferometry to examine the history of lens development, while another uses X-ray fluorescence to discover the kinds of materials used to make early mathematical and astronomical instruments. These methods lead to surprising findings: instruments turn out to be fake, and lens makers turn out to have been adept at solving the riddle of aperture. Although exciting, (...) in some ways this is neither novel nor particularly unusual. After all, lab techniques have been used in art and archaeological collections for a very long time. In fact, scientific instruments themselves have been examined in this way since at least the 1950s. What, then, is special about the use of new instruments to examine old instruments? We argue that the answer has less to do with measuring historical innovation or establishing priority, and more to do with networks of craft know-how that, typically, have left no other historical traces than those embodied in surviving instruments themselves. We show, in particular, how collections of objects can be mobilised within wider histories of knowledge, placing instruments within a dynamic interplay of craft knowledge, expertise, labour, commerce, and material exchange, over the longue durée. Finally, we suggest that these kinds of lab analyses can be given an extra dimension through the use of computational modelling, and we introduce the “Tools of Knowledge” project, which is designed to bring together XRF with techniques from the digital humanities, in order to tell a new story about the development of scientific instruments from the 16th to the 20th century. (shrink)

In Michel de Certeau’s Invention of the Everyday, improvisational community dance function as a catalyst for the subversive art of the oppressed, via its ancient Greek virtue/power of mētis, being “foxlike.” And in de Certeau’s The Possession of Loudun, this foxlike dance moves to the stage, as an improv chorus that disrupts the events at Loudon when reimagined as a tetralogy of plays at City Dionysia. More precisely, Loudun’s tetralogy could be interpreted as a series of three tragedies and one (...) comedy, the latter of which involves the chorine nuns’ channeling of anomie into a proto-feminist transfiguration. More precisely, the tactical prowess of the nuns’ chorus leader, namely the prioress Jeanne des Anges, elevates her to the status of an angelic prophet, which in de Certeau’s theatrical dancing critique makes her the Loudun tetralogy’s Dionysian, foxlike mage. In conclusion, this analysis suggests de Certeau’s relevance for revolutionary social justice today. (shrink)

This article focuses on examining a particular method of Biblical Interpretation. This specific method is that of the Patristic Method of Biblical Interpretation, proposed by Richard Swinburne. The Patristic Method faces a specific issue, ‘the Authority’ Issue, which will thus be dealt with within this article by utilising the notion of epistemic authority, as conceptualised by Linda Zagzebski, and restating it within a Catholic interpretative framework. Doing this will thus enable the Patristic Method to be presented as a robust and (...) cogent contemporary method of Biblical Interpretation that offers a unified and accurate understanding of God's revelation in the Bible. (shrink)

We ask whether it is reasonable to delay or refuse to take COVID-19 vaccines that have been shown in clinical trials to be safe and effective against infectious diseases. We consider two kinds of vaccine hesitancy. The first is geared to scientifically informed open questions about vaccines. We argue that in cases where the data is not representative of relevant groups, such as pregnant women and ethnic minorities, hesitancy can be reasonable on epistemic grounds. However, we argue that hesitancy is (...) not reasonable if a vaccine has passed well-conducted clinical trials. The second kind of hesitancy is to do with beliefs about the institutions offering a successfully trialled vaccine and the justifiability of cooperating with those institutions. For example, in the UK, distrust of the UK Government or the National Health Service is identified as a factor in the vaccine hesitancy of minority ethnic populations. We ask whether this sort of hesitation is reasonable given normative requirements of fair co-operation, both with those institutions and the wider population. We suggest that the answer is not straightforward. Sometimes the hesitation is unreasonable but understandable. -/- . (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)

Financial ties between physicians and pharmaceutical companies are pervasive and controversial. However, little is known about how patients perceive such ties. This paper describes an experiment examining how a national sample of U.S. adults perceived a variety of financial relationships between physicians and drug companies. Each respondent read a single scenario about a hypothetical physician and his financial ties to the pharmaceutical industry; scenarios varied in terms of payment type of and amount. Respondents then evaluated the physician on several dimensions (...) . Findings revealed that perceptions of the physician were more strongly influenced by payment type than by payment amount. Specifically, respondents were quite critical of doctors who owned drug company stock or received industry payments for meals and lodging, but were more forgiving of physicians who received free drug samples or consulting fees . Interestingly, physicians who received no payments, while seen as honest, were also viewed by some respondents as inexperienced or uninformed about new treatments. Implications for public policy and future research are discussed. (shrink)

ABSTRACT A robust literature indicates that when people feel that they are expressing and aware of their true selves, they show enhanced psychological health and well-being. This feeling, commonly referred to as authenticity, is therefore a consequential experience. In this paper, we review a program of research focused on the relevance of authenticity for civic engagement. We describe how a virtuous orientation to civic engagement might make civic actions feel more authentic and how the experience of authenticity might help sustain (...) civic behavior. We then discuss the role that education might play in fostering a deeper connection between civic engagement and the subjective experience of authenticity. (shrink)

Comparative religion scholar Thomas Berry’s influential concept of “Earth jurisprudence” has been helpfully elaborated in three principal books. My first section identifies four of their common themes, deriving therefrom an implicit narrative: (1) the basis of ecology is autopoiesis, which (2) originally generated human communities and Indigenous vernacular laws, which were (3) later reasserted by forest defenders who fought to create the Magna Carta’s “Charter of the Forest,” which is (4) now championed globally by the Indian physicist and eco-activist Vandana (...) Shiva’s Earth Democracy movement. My next three sections identify mutually exclusive elements of the three books, deriving the following alternative narrative: self-conscious new dancing rituals (Cullinan) could empower an historically informed reconstruction of private property (Burdon) via commons-based vernacular law (Weston and Bollier). And my conclusion offers one template for such a strategy, namely a new environmental variation on my dancing-poetic conception of legal justice, christened “emerald star-law.”. (shrink)

By introducing the concept of “mental data,” Palermos (2023) highlights an underappreciated aspect of data ethics that policymakers would do well to heed. Sweeping artificial intelligence (AI) legi...

Trust is commonly defined as a metaphysically-hybrid notion involving an attitude and an action. The action component of trust is defined as a special form of reliance in which the trustor has: (1) heightened expectations of their trustee; and (2) a disposition to justifiably feel betrayed if their trust is broken. The first aim of this paper is to reject the view that trust is a form of reliance. -/- The second aim of this paper is to develop and defend (...) a non-reliance-based variation of Katherine Hawley’s commitment trust account. Roughly, on my variant account, if X trusts Y to ϕ, then X has a belief with the following counterfactual as its content: ‘if I were to rely on Y to keep a commitment to ϕ, then I believe that Y would keep that commitment to ϕ.’ I defend this account against the objection that non-reliance accounts cannot explain the intuition that trust involves heightened expectations, and that it elicits justified betrayal when broken. I also respond to the argument that such accounts can’t provide adequate explanations of therapeutic trust, which is taken to be a counterexample of belief trust insofar as it describes instances where trustors trust trustees despite not believing that they are trustworthy. (shrink)

The focus of this project, New Conversations in Islamic and Christian Political Thought, concerns the ‘pre-modern’ or ‘long’ traditions of political thought in Islam and Christianity. The renaissance in Christian political thought since World War II has not yet witnessed a sustained engagement with Islamic political thought. Meanwhile, the interface of religion and political life has increasingly become a major focus of academic and public discourse. By exploring the varied traditions of Islam and Christianity, this project seeks to retrieve and (...) develop wisdom in political understanding with a view to enriching this discourse. (shrink)

One rather common way of doing philosophy involves what is called “the method of cases,” where philosophers design hypothetical cases and use what we think about those cases—our “philosophical intuitions”—as evidence that certain philosophical theories are true or false, and as reasons for believing that those theories are true or false. This way of doing philosophy has been challenged in recent years on the basis of both general epistemological considerations and more specific methodological concerns. These methodological concerns have focused not (...) on whether philosophical intuitions can be a good source of evidence, but rather on whether they can be used in the ways that they currently are used in actual philosophical practice given how little we know about them and some of the worrisome things that we have learned about them in recent years. My goal here is to provide you with a short introduction to this way of challenging to how philosophers use the method of cases, and to walk you through some of the more popular ways of responding to this kind of methodological challenge and some of their shortcomings. (shrink)

In his 1950 lecture entitled “Language,” Martin Heidegger announces a turn in the philosophy of language: for the opening theme, “man speaks,” he substitutes a countervailing theme: “language speaks”. Heidegger saw himself living in an era in which the historical determination of the inquiry into language that began with the Greek conception of human being as the animal with language had developed into a relentlessly technical way of thinking that viewed language instrumentally. By abandoning this conception, displacing the occurrence of (...) language away from “man” and toward language itself, Heidegger enacts a dehumanization of language that attempts to open a different avenue for thought.... (shrink)

Over the past thirty years, transitional justice scholars have grappled with whether, and to what extent, post-conflict societies should foster forgiveness. In response to this question, this article argues that forgiveness is a legitimate goal of transitional justice, but that interpersonal forgiveness cannot be mandated by the government. It will look to the example of Guatemala to demonstrate how the recovery of narrative truth through individual and communal acts of remembrance enabled forgiveness while at the same time affirmed the need (...) for justice. The article proceeds in two parts. First, it explores the praxis of forgiveness and the role of narrative truth and the healing of memory as constitutive elements of forgiveness. Second, it argues that Guatemala’s Recovery of Historical Memory Project (REMHI) is an illustration of this praxis. Finally, this article argues against conceptions of forgiveness that promote forgetting the past and forgoing justice. (shrink)

Financial relationships and business transactions between physicians and the health care industry are common. These relationships take a variety of forms, including payments to physicians in exchange for consulting services, reimbursement of physician travel expenses when attending medical device and pharmaceutical educational conferences, physician ownership in life science company stocks, and the provision of free drug samples. Such practices are not intrinsic to medical practice, but as the Institute of Medicine described in its 2009 report, these relationships have the potential (...) to produce positive collaborations that improve patient care and public health, and most physicians view it as “ethically proper to accept items ranging from drug samples to a lucrative consultantship.”However, financial relationships between physicians and pharmaceutical, medical device and biotechnology companies can also create negative influences on physician judgment that compromise patient care and jeopardize the public’s trust. (shrink)

Philosophers have long tried to understand scientific change in terms of a dynamics of revision within ‘theoretical frameworks,’ ‘disciplinary matrices,’ ‘scientific paradigms’ or ‘conceptual schemes.’ No-one, however, has made clear precisely how one might model such a conceptual scheme, nor what form change dynamics within such a structure could be expected to take. In this paper we take some first steps in applying network theory to the issue, modeling conceptual schemes as simple networks and the dynamics of change as cascades (...) on those networks. The results allow a new understanding of two traditional approaches—Popper and Kuhn—as well as introducing the intriguing prospect of viewing scientific change using the metaphor of selforganizing criticality. (shrink)

In this article, I offer the figure of the snake-bridge as (a) the coiled central metaphor in Gloria Anzaldúa’s masterpiece, Borderlands/La Frontera, (b) the interpretive bridge connecting the early (This Bridge Called My Back) middle (Borderlands) and late (Light in the Dark) periods of her oeuvre, and (c) an alternate unifying metaphor to mestizaje. My first section offers a close reading of Borderlands, locating snake-bridge in the east-west snake of the Rio Grande that queer Chicana borderlanders cross north and south (...) like snakes, while wrestling earthward with snake demons and skyward with snake goddesses. And my second section autopsies the dismembered snake-bridge in Light in the Dark, calling for a healing thereof in pursuit of a coalitional social justice politics that preserves the strengths of mestizaje without its dangers. (shrink)

In this paper, I will argue that metaphysicians ought to utilize quantum theories of gravity as incubators for a future metaphysics. I will argue why this ought to be done and will present cases studies from the history of science where physical theories have challenged both the dogmatic and speculative metaphysician. I provide two theories of QG and demonstrate the challenge they pose to certain aspects of our current metaphysics; in particular, how they challenge our understanding of the abstract–concrete distinction. (...) I demonstrate how five different accounts of the distinction each fail to hold under the received interpretations of loop quantum gravity and string theory. The central goal of this paper is to encourage metaphysicians to look to physical theories, especially those involving cosmology such as string theory and loop quantum gravity, when doing metaphysics. (shrink)