We describe a set of two computer‐implemented models that solve physics problems in ways characteristic of more and less competent human solvers. The main features accounting for different competences are differences in strategy for selecting physics principles, and differences in the degree of automation in the process of applying a single principle. The models provide a good account of the order in which principles are applied by human solvers working problems in kinematics and dynamics. They also are sufficiently flexible to (...) allow easy extension to several related domains of physics problems. (shrink)

The subject of consciousness, long shunned by mainstream psychology and the scientific community, has over the last two decades become a legitimate topic of scientific research. One of the most thorough attempts to formulate a theory of consciousness has come from Bernard Baars, a psychologist working at the Wright Institute. Baars proposes that consciousness is the result of a Global Workspace in the brain that distributes information to the huge number of parallel unconscious processors that form the rest of the (...) brain. This paper critiques the central hypothesis of Baars' theory of consciousness. (shrink)

We make the case that scientifically accurate and politically feasible responses to the climate crisis require a complex understanding of human cultural practices of niche construction that moves beyond the adaptive significance of culture. We develop this thesis in two related ways. First, we argue that cumulative cultural practices of niche construction can generate stable equilibria and runaway selection processes that result in long-term existential risks within and across cultural groups. We dub this the back of the invisible hand. Second, (...) we argue that the ability of cultural groups to innovate technological solutions to environmental problems is highly constrained in ways that are exacerbated by sustained intergroup conflict, inequality and by inherently unpredictable cascades in climate change and human migration patterns. After developing these theoretical points about human cultural practices of niche construction in detail, we conclude our discussion with some tentative practical suggestions about the way that cultural evolutionary history can more fruitfully be used in efforts to remit the climate crisis and contribute to sustainable practices of human climate change adaptation. (shrink)

In the second edition of this groundbreaking text in non-Western philosophy, sixteen experts introduce some of the great philosophical traditions in the world. The essays unveil exciting, sophisticated philosophical traditions that are too often neglected in the western world. The contributors include the leading scholars in their fields, but they write for students coming to these concepts for the first time. Building on revisions and updates to the original, this new edition also considers three philosophical traditions for the first time—Jewish, (...) Buddhist, and South Pacific philosophy. (shrink)

Some of the most celebrated images of nineteenth-century American photography emerged from government-sponsored geological surveys whose purpose was to study and document western territories. Timothy H. O'Sullivan and William Bell, two survey photographers who joined expeditions in the 1860s and 1870s, opened the eyes of nineteenth-century Americans to the western frontier. Highlighting a recent Smart Museum of Art acquisition, One/Many brings together an exquisite group of photographs by Bell and O'Sullivan. Particularly noteworthy are their photographic panoramas, assemblages of individual images (...) joined together to form a continuous, horizontal landscape view. These panoramas have not been exhibited in well over a century and have never before been published. For the first time, One/Many investigates their role and purpose both within and outside of the surveys, taking into account the larger context of nineteenth-century modes of viewing. The volume also allows the little-known Bell's work to be better understood next to that of his more famous colleague. (shrink)

Sandra Rosenthal has written an auspicious and even bold book, the task of which is to provide us with three fundamental approaches to the most profound and elusive of philosophical problems and questions. Her first intention is to present a "full-blown philosophical stance" in a pragmatic mode. Second, she attempts to structure a "speculative synthesis of what is to be found in the writings of the classical American pragmatists," and third, she offers a "speculative development of unique doctrines inspired by, (...) and incorporating the spirit of, classical American pragmatism." Few among the many contemporary interpreters of the pragmatic philosophical tradition would attempt such a formidable undertaking. What is remarkable is how close Rosenthal comes to redeeming her promise. In fact, if she is correct in her version of pragmatic thought as found in the writings of Charles S. Peirce, William James, John Dewey, George H. Mead and C. I. Lewis, most present commentaries on pragmatism--as having or not having a metaphysical posture, as alleging the uniqueness of pragmatism as differentiated from the western philosophical tradition, especially in its "foundational" commitment--will subsequently be out of date. (shrink)

As explained in the Preface, this book connects two sets of goals, one historical and the other social. The historical aim is to "recover a fuller understanding" of the American intellectual past, and the social aims concern the "complexities of building a better future." The chief thesis is that "these two sets of goals should be connected." Among others, gratitude is expressed for the work of John J. McDermott.

The Little Nell Problem was formulated by Drew McDermott in 1982. It reveals unexpected complexities in the interaction of the beliefs and intentions of a planning agent. This paper discusses the problem and proposes a solution.

Most scholars of Islamic intellectual history now agree on the distortedness of the traditional Western portrayal of al-Ġazālī as the defender of Muslim orthodoxy whose Incoherence of the Philosophers was such a powerful critique that it caused the annihilation of philosophical activity in Islamic civilization. Some in fact are coming to the conclusion that al-Ġazālī's importance in the history of Islamic philosophy and theology derives as much from his assiduous incorporation of basic metaphysical ideas into central doctrines of Sunnī kalām (...) , as from his far more celebrated bashing of the falāsifa . What is less well known is that al-Ġazālī's role in the ‘‘philosophizing” of Sunnī theology was not a lonely struggle by a single genius, but part of a broader trend that seems to have begun during Avicenna’s lifetime and that picked up speed in the first and second generations after Avicenna's death in 1037, with the work of al-Ġazālī's teacher, the Aš‘arite al-Gˇuwaynī , as well as of the Māturīdite al-Bazdawī , work that was carried forward by dozens of subsequent members of those two major Sunnī theological schools. It is clear, in fact, that the dividing line between the Sunnī theologians commonly referred to in the later Islamic tradition as mutaqaddimūn , and those referred to as muta’a&hbrevu;h&hbrevu;irūn , lies not with al-Ġazālī but with Avicenna himself, and that the turn in Sunnī kalām was therefore Avicennian, not Ġazālian. (shrink)

Reformulating a scientific theory often leads to a significantly different way of understanding the world. Nevertheless, accounts of both theoretical equivalence and scientific understanding have neglected this important aspect of scientific theorizing. This essay provides a positive account of how reformulation changes our understanding. My account simultaneously addresses a serious challenge facing existing accounts of scientific understanding. These accounts have failed to characterize understanding in a way that goes beyond the epistemology of scientific explanation. By focusing on cases in which (...) we have differences in understanding without differences in explanation, I show that understanding does not reduce to explanation. (shrink)

I want to join Dummett in saying that the reality of the past (and, by analogy, the reality of the future) is an issue of realism versus anti-realism: (Dummett 1969) If you affirm the reality of the past, you are a realist about the past. If you deny the reality of the past, you are an anti-realist about the past. (And likewise, in each case, for the future). It makes sense to think of these issues by analogy with realism about (...) the external world, unobservable objects, mathematical objects, universals, and so on. These are all properly described as ontological issues. (shrink)

If the former is the case, let us say that anti-reductionism about relational facts is true; if the latter, that reductionism about relational facts is true. Let us say that a fact is relational if it makes true some relational proposition (a proposition that asserts that a relation holds between some objects1), that it is irreducibly relational if, in addition, it does not make true any nonrelational propositions, and that it is monadic if it is not irreducibly relational (if it (...) makes true some proposition that does not assert that a relation holds between some objects). (shrink)

This paper is about what we may provisionally call “indicative” conditionals. It aims to describe one use of the word ‘if’, by giving the truth conditions of sentences using ‘if’ in the way in question. Here are some sentences that, on their natural interpretations, illustrate the target use.

In his Paris Reportatio John Duns Scotus challenges ordinary views of identity and distinction. I argue that Scotus affirms that there is more than one type of identity: some forms of identity are...

Initiatives relying on artificial intelligence (AI) to deliver socially beneficial outcomes—AI for social good (AI4SG)—are on the rise. However, existing attempts to understand and foster AI4SG initiatives have so far been limited by the lack of normative analyses and a shortage of empirical evidence. In this Perspective, we address these limitations by providing a definition of AI4SG and by advocating the use of the United Nations’ Sustainable Development Goals (SDGs) as a benchmark for tracing the scope and spread of AI4SG. (...) We introduce a database of AI4SG projects gathered using this benchmark, and discuss several key insights, including the extent to which different SDGs are being addressed. This analysis makes possible the identification of pressing problems that, if left unaddressed, risk hampering the effectiveness of AI4SG initiatives. (shrink)

Is the ability to speak a language an acquired skill? Leading proponents of the generative approach to human language—notably Chomsky (2000) and Pinker (2003)—have argued that the thesis that language capacities are skills is hopelessly confused and at odds with a range of empirical evidence, which suggests that human language capacities are grounded in a biologically inherited set of language instincts or a Universal Grammar (UG). In this paper, we argue that resistance to the claim that human language capacities are (...) skills has been fostered by naïve and implausible conceptions of the nature of skilled action. Correcting these misconceptions about the nature of skilled action breathes new life into the old idea that human language competences are particular kinds of skills and does so in a way that is fully consistent with appeals to the central importance of UG, broadly construed. More generally, we argue that by taking human language capacities to be skills, we capture what is right about the generative program while at the same time avoiding its most serious pitfalls. (shrink)

Science frequently gives us multiple, compatible ways of solving the same problem or formulating the same theory. These compatible formulations change our understanding of the world, despite providing the same explanations. According to what I call "conceptualism," reformulations change our understanding by clarifying the epistemic structure of theories. I illustrate conceptualism by analyzing a typical example of symmetry-based reformulation in chemical physics. This case study poses a problem for "explanationism," the rival thesis that differences in understanding require ontic explanatory differences. (...) To defend conceptualism, I consider how prominent accounts of explanation might accommodate this case study. I argue that either they do not succeed, or they generate a skeptical challenge. (shrink)

We argue that Hamiltonian mechanics is more fundamental than Lagrangian mechanics. Our argument provides a non-metaphysical strategy for privileging one formulation of a theory over another: ceteris paribus, a more general formulation is more fundamental. We illustrate this criterion through a novel interpretation of classical mechanics, based on three physical conditions. Two of these conditions suffice for recovering Hamiltonian mechanics. A third condition is necessary for Lagrangian mechanics. Hence, Lagrangian systems are a proper subset of Hamiltonian systems. Finally, we provide (...) a geometric interpretation of the principle of stationary action and rebut arguments for privileging Lagrangian mechanics. (shrink)

An important objection to the "higher-order" theory of consciousness turns on the possibility of higher-order misrepresentation. I argue that the objection fails because it illicitly assumes a characterization of consciousness explicitly rejected by HO theory. This in turn raises the question of what justifies an initial characterization of the data a theory of consciousness must explain. I distinguish between intrinsic and extrinsic characterizations of consciousness, and I propose several desiderata a successful characterization of consciousness must meet. I then defend the (...) particular extrinsic characterization of the HO theory, the "transitivity principle," against its intrinsic rivals, thereby showing that the misrepresentation objection conclusively falls short. (shrink)

This paper is about what we may provisionally call “indicative” conditionals. It aims to describe one use of the word ‘if’, by giving the truth conditions of sentences using ‘if’ in the way in question. Here are some sentences that, on their natural interpretations, illustrate the target use.

This chapter has three sections. In the first, I give a brief summary of what Foucault means by "power-knowledge." In the second, I show how this concept can be used to analyze the situations of disabled adults in relation to complex institutions of benefits and employment in the United States. In the third, I argue that disabled adults are often subject to several types of epistemic injustice given these operations of power, including subjection to structural epistemic injustice and forms of (...) epistemic labor. (shrink)

Science and mathematics continually change in their tools, methods, and concepts. Many of these changes are not just modifications but progress---steps to be admired. But what constitutes progress? This dissertation addresses one central source of intellectual advancement in both disciplines: reformulating a problem-solving plan into a new, logically compatible one. For short, I call these cases of compatible problem-solving plans "reformulations." Two aspects of reformulations are puzzling. First, reformulating is often unnecessary. Given that we could already solve a problem using (...) an older formulation, what do we gain by reformulating? Second, some reformulations are genuinely trivial or insignificant. Merely replacing one symbol with another does not lead to intellectual progress. What distinguishes significant reformulations from trivial ones? According to what I call "conceptualism" (or "conceptual empiricism"), reformulations are intellectually significant when they provide a different plan for solving problems. Significant reformulations provide inferentially different routes to the same solution. In contrast, trivial reformulations provide exactly the same problem-solving plans, and hence they do not change our understanding. This answers the second question about what distinguishes trivial from significant reformulations. However, the first question remains: what makes a new way of solving an old problem valuable? Here, a bevy of practical considerations come to mind: one formulation might be faster, less complicated, or use more familiar concepts. According to "instrumentalism," these practical benefits are all there is to reformulating. Some reformulations are simply more instrumentally valuable for meeting the aims of science than others. At another extreme, "fundamentalism" contends that a reformulation is valuable when it provides a more fundamental description of reality. According to this view, some reformulations directly contribute to the metaphysical aim of carving reality at its joints. Conceptualism develops a middle ground between instrumentalism and fundamentalism, preserving their benefits without their costs. I argue that the epistemic value of significant reformulations does not reduce to either practical or metaphysical value. Reformulations are valuable because they are a constitutive part of problem-solving. Both science and mathematics aim at solving all possible problems within their respective domains. Meeting this aim requires being able to plan for any possible problem-solving context, and this requires reformulating. By reformulating, we clarify what we need to know to solve problems. Still, one might wonder whether the value of reformulations requires underlying differences in explanatory power. According to "explanationism," a reformulation is valuable only when it provides a better explanation. Explanationism stands as a rival middle ground position to my own. However, it faces numerous counterexamples. In many cases, two reformulations provide the same explanation while nonetheless providing different ways of understanding a phenomenon. Hence, reformulating can be valuable even when neither formulation is more explanatory. Methodologically, I draw on a variety of case studies to support my account of reformulation. These range from classical mechanics to quantum chemistry, along with examples from mathematics. Symmetry arguments provide a paradigmatic example: the mathematics of symmetry groups radically recasts quantum mechanics and quantum chemistry. Nevertheless, elementary approaches exist that eschew this additional mathematical apparatus, solving problems in a more tedious but less mathematically-demanding manner. Further examples include reformulations of quantum field theory, Arabic vs. Roman numerals, and Fermat's little theorem in number theory. In each case, my account identifies how reformulations change and improve our understanding of science and mathematics. (shrink)

In a series of papers, Donald Davidson :3–17, 1984, The philosophical grounds of rationality, 1986, Midwest Stud Philos 16:1–12, 1991) developed a powerful argument against the claim that linguistic conventions provide any explanatory purchase on an account of linguistic meaning and communication. This argument, as I shall develop it, turns on cases of what I call lexical innovation: cases in which a speaker uses a sentence containing a novel expression-meaning pair, but nevertheless successfully communicates her intended meaning to her audience. (...) I will argue that cases of lexical innovation motivate a dynamic conception of linguistic conventions according to which background linguistic conventions may be rapidly expanded to incorporate new word meanings or shifted to revise the meanings of words already in circulation. I argue that this dynamic account of conventions both resolves the problem raised by cases of lexical innovation and that it does so in a way that is preferable to those who—like Davidson—deny important explanatory roles for linguistic conventions. (shrink)

That AI will have a major impact on society is no longer in question. Current debate turns instead on how far this impact will be positive or negative, for whom, in which ways, in which places, and on what timescale. In order to frame these questions in a more substantive way, in this prolegomena we introduce what we consider the four core opportunities for society offered by the use of AI, four associated risks which could emerge from its overuse or (...) misuse, and the opportunity costs associated with its under use. We then offer a high-level view of the emerging advantages for organisations of taking an ethical approach to developing and deploying AI. Finally, we introduce a set of five principles which should guide the development and deployment of AI technologies. The development of laws, policies and best practices for seizing the opportunities and minimizing the risks posed by AI technologies would benefit from building on ethical frameworks such as the one offered here. (shrink)

The buyer-supplier relationship is the nexus of the economic partnership of many commercial transactions and is founded upon the reciprocal trust of the two parties that participate in this economic exchange. In this article, we identify how six ethical elements play a key role in framing the buyer—supplier relationship, incorporating a model articulated by Hosmer (The ethics of management, McGraw-Hill, New York, 2008). We explain how trust is a behavior, the relinquishing of personal control in the expectant hope that the (...) other party will honor the duties of a psychological contract. Presenting information about six factors of organizational trustworthiness, we offer insights about the relationship between ethics and trust in the buyer-supplier relationship. (shrink)

In this article we analyse the role that artificial intelligence (AI) could play, and is playing, to combat global climate change. We identify two crucial opportunities that AI offers in this domain: it can help improve and expand current understanding of climate change and it contribute to combating the climate crisis effectively. However, the development of AI also raises two sets of problems when considering climate change: the possible exacerbation of social and ethical challenges already associated with AI, and the (...) contribution to climate change of the greenhouse gases emitted by training data and computation-intensive AI systems. We assess the carbon footprint of AI research, and the factors that influence AI’s greenhouse gas (GHG) emissions in this domain. We find that the carbon footprint of AI research may be significant and highlight the need for more evidence concerning the trade-off between the GHG emissions generated by AI research and the energy and resource efficiency gains that AI can offer. In light of our analysis, we argue that leveraging the opportunities offered by AI for global climate change whilst limiting its risks is a gambit which requires responsive, evidence-based and effective governance to become a winning strategy. We conclude by identifying the European Union as being especially well-placed to play a leading role in this policy response and provide 13 recommendations that are designed to identify and harness the opportunities of AI for combating climate change, while reducing its impact on the environment. (shrink)

Our ordinary assertions are often imprecise, insofar as the way we represent things as being only approximates how things are in the actual world. The phenomenon of assertoric imprecision raises a challenge to standard accounts of both the norm of assertion and the connection between semantics and the objects of assertion. After clarifying these problems in detail, I develop a framework for resolving them. Specifically, I argue that the phenomenon of assertoric imprecision motivates a rejection of the widely held belief (...) that a semantic theory for a language associates a single semantic value with each of the simple and complex expressions of that language, relative to the contexts in which they occur. Instead, I propose that we adopt a framework I call semantic pluralism. (shrink)

Accounts of scientific explanation disagree about what’s required for a cause, law, or other fact to be a reason why an event occurs. In short, they disagree about the conditions for explanatory relevance. Nonetheless, most accounts presuppose that claims about explanatory relevance play a descriptive role in tracking reality. By rejecting the need for this descriptivist assumption, I develop an expressivist account of explanatory relevance and explanation: to judge that an answer is explanatory is to express an attitude ofbeing for (...) being satisfied by that answer. I show how expressivism vindicates ordinary scientific discourse about explanation, including claims about the objectivity and mind-independence of explanations. By avoiding commitment to ontic relevance relations, I rehabilitate an irrealist conception of explanation. (shrink)

The possibility of “clean milk”—dairy produced without the need for cows—has been championed by several charities, companies, and individuals. One can ask how those critical of the contemporary dairy industry, including especially vegans and others sympathetic to animal rights, should respond to this prospect. In this paper, I explore three kinds of challenges that such people may have to clean milk: first, that producing clean milk fails to respect animals; second, that humans should not consume dairy products; and third, that (...) the creation of clean milk would affirm human superiority over cows. None of these challenges, I argue, gives us reason to reject clean milk. I thus conclude that the prospect is one that animal activists should both welcome and embrace. (shrink)

In this article, we analyse the role that artificial intelligence (AI) could play, and is playing, to combat global climate change. We identify two crucial opportunities that AI offers in this domain: it can help improve and expand current understanding of climate change, and it can contribute to combatting the climate crisis effectively. However, the development of AI also raises two sets of problems when considering climate change: the possible exacerbation of social and ethical challenges already associated with AI, and (...) the contribution to climate change of the greenhouse gases emitted by training data and computation-intensive AI systems. We assess the carbon footprint of AI research, and the factors that influence AI’s greenhouse gas (GHG) emissions in this domain. We find that the carbon footprint of AI research may be significant and highlight the need for more evidence concerning the trade-off between the GHG emissions generated by AI research and the energy and resource efficiency gains that AI can offer. In light of our analysis, we argue that leveraging the opportunities offered by AI for global climate change whilst limiting its risks is a gambit which requires responsive, evidence-based, and effective governance to become a winning strategy. We conclude by identifying the European Union as being especially well-placed to play a leading role in this policy response and provide 13 recommendations that are designed to identify and harness the opportunities of AI for combatting climate change, while reducing its impact on the environment. (shrink)

In this article, I develop an account of genius inspired by Kristeva’s writings on feminine genius in order to argue that certain ill and disabled people should be considered geniuses in the face of social conditions and medical practices that too often marginalize, restrict, and silence them. In contrast to Kristeva’s notion of feminine genius, which relies on an Oedipal developmental story, I argue that we should understand genius as (1) the intimate revolt of (2) a singular subject who (3) (...) occupies a marginalized social position and who, through their revolt, (4) creates a work. Conceiving of genius in this way, I contend, opens up the possibility of recognizing Kristevan genius from marginalized positions other than that of women while remaining true to Kristeva’s account of the intimate. Having developed this account, I offer an example by suggesting that Susan Wendell is one such genius. Finally, I move on to argue that, by taking Kristeva’s theory of the semiotic seriously, we may discover genius among those with “severe cognitive disabilities,” and discuss Eva Kittay’s daughter, Sesha, as an example. My hope is that this concept may help us be attentive to the singular accomplishments of those who face exclusion and silencing as a result of illness or disability. (shrink)

One desideratum for contemporary theories of emotion both in philosophy and affective science is an explanation of the relation between emotions and objects that illicit them. According to one research tradition in emotion theory, the Evaluative Tradition, the explanation is simple: emotions just are evaluative judgments about their objects. Growing research in affective science supports this claim suggesting that emotions constitute (or contribute to) evaluative judgments such as moral judgments about right and wrong. By contrast, recent scholarship in two historical (...) emotion theories, Augustinian and Thomistic, emphasize their sharp distinction between cognitive judgments and affectivity or between reason and emotion. For these historical models, reason, not emotion, is responsible for moral judgment. Are the evaluative and historical models at irreconcilable odds? Should we discard old models that fail to satisfy intuitions about the intricate role of emotions in moral judgment? This paper compares these research programs and suggests a roadmap for collaboration. (shrink)

In this chapter, we analyze intellectual patience as a character trait. We look at the contexts that call for patience and at what patience demands in those contexts. Together these constitute our account of patience, though the focus is on patience in the life of the mind. We also consider how patience and perseverance differ, which offers a better understanding of the former and sheds light on how character traits can cooperate. We then consider how to become virtuously patient. We (...) conclude reflecting on some remarks made by the poet Rilke. (shrink)

Josh Wilburn examines the relationship between Plato's views on psychology and his political philosophy. Focusing on his reflections on the spirited part of the tripartite soul, or thumos, and spirited motivation, he explores the social and political challenges that occupy Plato throughout his works.

Animal lovers who feed meat to other animals are faced with a paradox: perhaps fewer animals would be harmed if they stopped feeding the ones they love. Animal diets do not raise problems merely for individuals. To address environmental crises, health threats, and harm to animals, we must change our food systems and practices. And in these systems, animals, too, are eaters. -/- Looking beyond what humans should eat and whether to count animals as food, Just Fodder answers ethical and (...) political questions arising from thinking about animals as eaters. Josh Milburn begins with practical dilemmas about feeding the animals closest to us, our pets or animal companions. The questions grow more complicated as he considers relationships with more distance - questions about whether and how to feed garden birds, farmland animals who would eat our crops, and wild animals. Milburn evaluates the nature and circumstances of our relationships with animals to generate a novel theory of animal rights. -/- Looking past arguments about what we can and cannot do to other beings, Just Fodder asks what we can, should, and must do for them, laying out a fuller range of our ethical obligations to other animals. (shrink)

This paper explores the significance of intelligent social behavior among non-human animals for philosophical theories of communication. Using the alarm call system of vervet monkeys as a case study, I argue that interpersonal communication (or what I call “minded communication”) can and does take place in the absence of the production and recognition of communicative intentions. More generally, I argue that evolutionary theory provides good reasons for maintaining that minded communication is both temporally and explanatorily prior to the use of (...) communicative intentions. After developing these negative points about the place of communicative intentions in detail, I provide a novel alternative account according to which minded communication is characterized in terms of patterns of action and response that function to coordinate the representational mental states of agents. I show that an account which centers on patterns of representational coordination of this sort is well suited to capture the theoretical roles associated with minded communication and that it does so in a way that provides a good fit with comparative facts about the presence of minded communication among non-human animals. (shrink)

At the outset of the Republic, Polemarchus advances the bold thesis that “justice is the art which gives benefit to friends and injury to enemies”. He quickly rejects the hypothesis, and what follows is a long tradition of neglecting the ethics of enmity. The parallel issue of how friendship affects the moral sphere has, by contrast, been greatly illuminated by discussions both ancient and contemporary. This article connects this existing work to the less explored topic of the normative significance of (...) our negative relationships. I explain how negative partiality should be conceptualized through reference to the positive analogue, and argue that at least some forms of negative partiality are justified. I further explore the connection between positive and negative relationships by showing how both are justified by ongoing histories of encounter. However, I also argue that these relationships are in some important ways asymmetrical. (shrink)