[Newspaper Opinion] Before the COVID-19 pandemic and the accompanying fall in oil prices, a carbon price would have been immediately painful for the countries that imposed it, but far better for everyone over the longer term. In this unprecedented moment, introducing a carbon price would be beneficial both now and for the future.

You don't say much about who you are teaching, or what subject you teach, but you do seem to see a need to justify what you are doing. Perhaps you're teaching underprivileged children, opening their minds to possibilities that might otherwise never have occurred to them. Or maybe you're teaching the children of affluent families and opening their eyes to the big moral issues they will face in life — like global poverty, and climate change. If you're doing something like (...) this, then stick with it. Giving money isn't the only way to make a difference. (shrink)

The standard view says that epistemic normativity is normativity of belief. If you’re an evidentialist, for example, you’ll think that all epistemic reasons are reasons to believe what your evidence supports. Here we present a line of argument that pushes back against this standard view. If the argument is right, there are epistemic reasons for things other than belief. The argument starts with evidentialist commitments and proceeds by a series of cases, each containing a reason. As the cases progress, the (...) reasons change from counting in favor of things like having a belief to things like performing ordinary actions. We argue that each of those reasons is epistemic. If the argument succeeds, we should think there are epistemic reasons to consider hypotheses, conduct thought and physical experiments, extend one’s evidence, and perform mundane tasks like eating a sandwich, just as there are epistemic reasons to believe what one’s evidence supports. (shrink)

The fear that business corporations have claimed unwarranted constitutional protections which have entrenched corporate power has produced a broad social movement demanding that constitutional rights be restricted to human beings and corporate personhood be abolished. We develop a critique of these proposals organized around the three salient rationales we identify in the accompanying narrative, which we argue reflect a narrow focus on large business corporations, a misunderstanding of the legal concept of personhood, and a failure to distinguish different kinds of (...) constitutional rights and the reasons for assigning them. Corporate personhood and corporate constitutional rights are not problematic per se once these notions are decoupled from biological, metaphysical, or moral considerations. The real challenge is that we need a principled way of thinking about the priority of human over corporate persons which does not reduce the efficacy of corporate institutions or harm liberal democracies. (shrink)

The is-ought gap is Hume’s claim that we can’t get an ‘ought’ from just ‘is’s. Prior (“The Autonomy of Ethics,” 1960) showed that its most straightforward formulation, a staple of introductory philosophy classes, fails. Many authors attempt to resurrect the claim by restricting its domain syntactically or by reformulating it in terms of models of deontic logic. Those attempts prove to be complex, incomplete, or incorrect. I provide a simple reformulation of the is-ought gap that closely fits Hume’s description of (...) it. My formulation of the gap avoids the proposed counterexamples from Prior and offers a natural explanation of why they seem compelling. Moreover, I show that my formulation of the gap is guaranteed by standard theories of the semantics of normative terms, and that provides a more general reason to accept it. (shrink)

Freedom of speech has traditionally been a cause championed by the left and liberal side of the political spectrum, against conservatives who have tried to limit the expression of radical ideas. Here are three examples from the United States: 1) When I was appointed to Princeton University in 1999, Steve Forbes, whose father had endowed the university’s Forbes College, called for my appointment to be rescinded, and pledged that he would not donate to the university as long as I was (...) on the faculty. Forbes was, at the time, running for the Republican nomination for president. (shrink)

Public health care interventions—regarding vaccination, obesity, and HIV, for example—standardly take the form of information dissemination across a community. But information networks can vary importantly between different ethnic communities, as can levels of trust in information from different sources. We use data from the Greater Pittsburgh Random Household Health Survey to construct models of information networks for White and Black communities--models which reflect the degree of information contact between individuals, with degrees of trust in information from various sources correlated with (...) positions in that social network. With simple assumptions regarding belief change and social reinforcement, we use those modeled networks to build dynamic agent-based models of how information can be expected to flow and how beliefs can be expected to change across each community. With contrasting information from governmental and religious sources, the results show importantly different dynamic patterns of belief polarization within the two communities. (shrink)

A first take, matured in later work, in modeling belief polarization.

We motivate a picture of social epistemology that sees forgetting as subject to epistemic evaluation. Using computer simulations of a simple agent-based model, we show that how agents forget can have as large an impact on group epistemic outcomes as how they share information. But, how we forget, unlike how we form beliefs, isn’t typically taken to be the sort of thing that can be epistemically rational or justified. We consider what we take to be the most promising argument for (...) this claim and find it lacking. We conclude that understanding how agents forget should be as central to social epistemology as understanding how agents form beliefs and share information with others. (shrink)

This article aims to describe the last 10 years of the collaborative scientific endeavors on polarization in particular and collective problem-solving in general by our multidisciplinary research team. We describe the team’s disciplinary composition—social psychology, political science, social philosophy/epistemology, and complex systems science— highlighting the shared and unique skill sets of our group members and how each discipline contributes to studying polarization and collective problem-solving. With an eye to the literature on team dynamics, we describe team logistics and processes that (...) we believe make our multidisciplinary team persistent and productive. We emphasize challenges and difficulties caused by disciplinary differences in terms of terminology, units/levels of analysis, methodology, and theoretical assumptions. We then explain how work disambiguating the concepts of polarization and developing an integrative theoretical and methodological framework with complex systems perspectives has helped us overcome these challenges. We summarize the major findings that our research has produced over the past decade, and describe our current research and future directions. Last, we discuss lessons we have learned, including difficulties in a “three models” project and how we addressed them, with suggestions for effective multidisciplinary team research. (shrink)

We present ethical reasons that the court should grant the Nonhuman Rights Project’s (NhRP) request for habeas corpus relief for Happy, an elephant. Happy has a basic interest in not being confined, an interest that should be legally protected just as the human interest in not being confined is legally protected. Since the decision in The Nonhuman Rights Project, Inc. v Breheny failed to weigh Happy’s interests properly, we ask this body to correct the error.

Do university ethics classes influence students’ real-world moral choices? We aimed to conduct the first controlled study of the effects of ordinary philosophical ethics classes on real-world moral choices, using non-self-report, non-laboratory behavior as the dependent measure. We assigned 1332 students in four large philosophy classes to either an experimental group on the ethics of eating meat or a control group on the ethics of charitable giving. Students in each group read a philosophy article on their assigned topic and optionally (...) viewed a related video, then met with teaching assistants for 50-minute group discussion sections. They expressed their opinions about meat ethics and charitable giving in a follow-up questionnaire (1032 respondents after exclusions). We obtained 13,642 food purchase receipts from campus restaurants for 495 of the students, before and after the intervention. Purchase of meat products declined in the experimental group (52% of purchases of at least $4.99 contained meat before the intervention, compared to 45% after) but remained the same in the control group (52% both before and after). Ethical opinion also differed, with 43% of students in the experimental group agreeing that eating the meat of factory farmed animals is unethical compared to 29% in the control group. We also attempted to measure food choice using vouchers, but voucher redemption rates were low and no effect was statistically detectable. It remains unclear what aspect of instruction influenced behavior. (shrink)

There is too much that we do not know about COVID-19. The longer we take to find it out, the more lives will be lost. In this paper, we will defend a principle of risk parity: if it is permissible to expose some members of society (e.g. health workers or the economically vulnerable) to a certain level of ex ante risk in order to minimize overall harm from the virus, then it is permissible to expose fully informed volunteers to a (...) comparable level of risk in the context of promising research into the virus. We apply this principle to three examples of risky research: skipping animal trials for promising treatments, human challenge trials to speed up vaccine development, and low-dose controlled infection or “variolation.” We conclude that if volunteers, fully informed about the risks, are willing to help fight the pandemic by aiding promising research, there are strong moral reasons to gratefully accept their help. To refuse it would implicitly subject others to still graver risks. (shrink)

Polarization is a topic of intense interest among social scientists, but there is significant disagreement regarding the character of the phenomenon and little understanding of underlying mechanics. A first problem, we argue, is that polarization appears in the literature as not one concept but many. In the first part of the article, we distinguish nine phenomena that may be considered polarization, with suggestions of appropriate measures for each. In the second part of the article, we apply this analysis to evaluate (...) the types of polarization generated by the three major families of computational models proposing specific mechanisms of opinion polarization. (shrink)

The Hong and Page ‘diversity trumps ability’ result has been used to argue for the more general claim that a diverse set of agents is epistemically superior to a comparable group of experts. Here we extend Hong and Page’s model to landscapes of different degrees of randomness and demonstrate the sensitivity of the ‘diversity trumps ability’ result. This analysis offers a more nuanced picture of how diversity, ability, and expertise may relate. Although models of this sort can indeed be suggestive (...) for diversity policies, we advise against interpreting such results overly broadly. (shrink)

In order to understand the transmission of a disease across a population we will have to understand not only the dynamics of contact infection but the transfer of health-care beliefs and resulting health-care behaviors across that population. This paper is a first step in that direction, focusing on the contrasting role of linkage or isolation between sub-networks in (a) contact infection and (b) belief transfer. Using both analytical tools and agent-based simulations we show that it is the structure of a (...) network that is primary for predicting contact infection—whether the networks or sub-networks at issue are distributed ring networks or total networks (hubs, wheels, small world, random, or scale-free for example). Measured in terms of time to total infection, degree of linkage between sub-networks plays a minor role. The case of belief is importantly different. Using a simplified model of belief reinforcement, and measuring belief transfer in terms of time to community consensus, we show that degree of linkage between sub-networks plays a major role in social communication of beliefs. Here, in contrast to the case of contract infection, network type turns out to be of relatively minor importance. What you believe travels differently. In a final section we show that the pattern of belief transfer exhibits a classic power law regardless of the type of network involved. (shrink)

Agent-based models have played a prominent role in recent debates about the merits of democracy. In particular, the formal model of Lu Hong and Scott Page and the associated “diversity trumps ability” result has typically been seen to support the epistemic virtues of democracy over epistocracy (i.e., governance by experts). In this paper we first identify the modeling choices embodied in the original formal model and then critique the application of the Hong-Page results to philosophical debates on the relative merits (...) of democracy. In particular we argue that the “best-performing agents” in Hong-Page model should not be interpreted as experts. We next explore a closely related model in which best-performing agents are more plausibly seen as experts and show that the diversity trumps ability result fails to hold. However, with changes in other parameters (such as the deliberation dynamic) the diversity trumps ability result is restored. The sensitivity of this result to parameter choices illustrates the complexity of the link between formal modeling and more general philosophical claims; we use this debate as a platform for a more general discussion of when and how agent-based models can contribute to philosophical discussions. (shrink)

Beyond belief change and meme adoption, both genetics and infection have been spoken of in terms of information transfer. What we examine here, concentrating on the specific case of transfer between sub-networks, are the differences in network dynamics in these cases: the different network dynamics of germs, genes, and memes. Germs and memes, it turns out, exhibit a very different dynamics across networks. For infection, measured in terms of time to total infection, it is network type rather than degree of (...) linkage between sub-networks that is of primary importance. For belief transfer, measured in terms of time to consensus, it is degree of linkage rather than network type that is crucial. Genes model each of these other dynamics in part, but match neither in full. For genetics, like belief transfer and unlike infection, network type makes little difference. Like infection and unlike belief, on the other hand, the dynamics of genetic information transfer within single and between linked networks are much the same. In ways both surprising and intriguing, transfer of genetic information seems to be robust across network differences crucial for the other two. (shrink)

A scientific community can be modeled as a collection of epistemic agents attempting to answer questions, in part by communicating about their hypotheses and results. We can treat the pathways of scientific communication as a network. When we do, it becomes clear that the interaction between the structure of the network and the nature of the question under investigation affects epistemic desiderata, including accuracy and speed to community consensus. Here we build on previous work, both our own and others’, in (...) order to get a firmer grasp on precisely which features of scientific communities interact with which features of scientific questions in order to influence epistemic outcomes. (shrink)

ABSTRACT This article distinguishes nine senses of polarization and provides formal measures for each one to refine the methodology used to describe polarization in distributions of attitudes. Each distinct concept is explained through a definition, formal measures, examples, and references. We then apply these measures to GSS data regarding political views, opinions on abortion, and religiosity—topics described as revealing social polarization. Previous breakdowns of polarization include domain-specific assumptions and focus on a subset of the distribution’s features. This has conflated multiple, (...) independent features of attitude distributions. The current work aims to extract the distinct senses of polarization and demonstrate that by becoming clearer on these distinctions we can better focus our efforts on substantive issues in social phenomena. (shrink)

Epistemic justifications for democracy have been offered in terms of two different aspects of decision-making: voting and deliberation, or 'votes' and 'talk.' The Condorcet Jury Theorem is appealed to as a justification in terms of votes, and the Hong-Page "Diversity Trumps Ability" result is appealed to as a justification in terms of deliberation. Both of these, however, are most plausibly construed as models of direct democracy, with full and direct participation across the population. In this paper, we explore how these (...) results hold up if we vary the model so as to reflect the more familiar democratic structure of a representative hierarchy. We first recount extant analytic work that shows that representation inevitably weakens the voting results of the Condorcet Jury Theorem, but we question the ability of the result to shine light on real representative systems. We then show that, when we move from votes to talk, as modeled in Hong-Page, representation holds its own and even has a slight edge. (shrink)

Should the law recognize an elephant’s right to be released from solitary confinement? The New York State Court of Appeals—the highest court in the State of New York—will consider this question on May 18. At issue is an Asian elephant named Happy. But happy she is not. Every human being has a right to bodily liberty because they have strong interests that this right protects. Since Happy has the same strong interests, the Court should recognize Happy’s right to be freed (...) from solitary confinement. (shrink)

Epistemic justifications for democracy have been offered in terms of two different aspects of decision-making: voting and deliberation, or ‘votes’ and ‘talk.’ The Condorcet Jury Theorem is appealed to as a justification in terms votes, and the Hong-Page “Diversity Trumps Ability” result is appealed to as a justification in terms of deliberation. Both of these, however, are most plausibly construed as models of direct democracy, with full and direct participation across the population. In this paper, we explore how these results (...) hold up if we vary the model so as to reflect the more familiar democratic structure of a representative hierarchy. We first recount extant analytic work that shows that representation inevitably weakens the voting results of the Condorcet Jury Theorem, but we question the ability of that result to shine light on real representative systems. We then show that, when we move from votes to talk, as modeled in Hong-Page, representation holds its own and even has a slight edge. (shrink)

Understanding the dynamics of information is crucial to many areas of research, both inside and outside of philosophy. Using computer simulations of three kinds of information, germs, genes, and memes, we show that the mechanism of information transfer often swamps network structure in terms of its effects on both the dynamics and the fitness of the information. This insight has both obvious and subtle implications for a number of questions in philosophy, including questions about the nature of information, whether there (...) is genetic information, and how to arrange scientific communities. (shrink)

In this paper we make a simple theoretical point using a practical issue as an example. The simple theoretical point is that robustness is not 'all or nothing': in asking whether a system is robust one has to ask 'robust with respect to what property?' and 'robust over what set of changes in the system?' The practical issue used to illustrate the point is an examination of degrees of linkage between sub-networks and a pointed contrast in robustness and fragility between (...) the dynamics of (1) contact infection and (2) information transfer or belief change. Time to infection across linked sub-networks, it turns out, is fairly robust with regard to the degree of linkage between them. Time to infection is fragile and sensitive, however, with regard to the type of sub-network involved: total, ring, small world, random, or scale-free. Aspects of robustness and fragility are reversed where it is belief updating with reinforcement rather than infection that is at issue. In information dynamics, the pattern of time to consensus is robust across changes in network type but remarkably fragile with respect to degree of linkage between sub-networks. These results have important implications for public health interventions in realistic social networks, particularly with an eye to ethnic and socio-economic sub-communities, and in social networks with sub-communities changing in structure or linkage. (shrink)

In a series of formal studies and less formal applications, Hong and Page offer a ‘diversity trumps ability’ result on the basis of a computational experiment accompanied by a mathematical theorem as explanatory background (Hong & Page 2004, 2009; Page 2007, 2011). “[W]e find that a random collection of agents drawn from a large set of limited-ability agents typically outperforms a collection of the very best agents from that same set” (2004, p. 16386). The result has been extremely influential as (...) an epistemic justification for diversity policy initiatives. Here we show that the ‘diversity trumps ability’ result is tied to the particular random landscape used in Hong and Page’s simulation. We argue against interpreting results on that random landscape in terms of ‘ability’ or ‘expertise.’ These concepts are better modeled on smother and more realistic landscapes, but keeping other parameters the same those are landscapes on which it is groups of the best performing that do better. Smoother landscapes seem to vindicate both the concept and the value of expertise. Change in other parameters, however, also vindicates diversity. With an increase in the pool of available heuristics, diverse groups again do better. Group dynamics makes a difference as well; simultaneous ‘tournament’ deliberation in a group in place of the ‘relay’ deliberation in Hong and Page’s original model further emphasizes an advantage for diversity. ‘Tournament’ 2 dynamics particularly shows the advantage of mixed groups that include both experts and non-experts. As a whole, our modeling results suggest that relative to problem characteristics and conceptual resources, the wisdom of crowds and the wisdom of the few each have a place. We regard ours as a step toward attempting to calibrate their relative virtues in different modelled contexts of intellectual exploration. (shrink)

Edgar A. Singer Jr. is largely forgotten. Yet in the early twentieth century he was one of the most persistent proponents for a theory of "mind as behavior." This essay explores Singer's theory of mind as a form of experimentally-definable behavior. This interpretation of mind is derived from Singer's "philosophy of experiment," which delimits the forms of questions that can have meaningful answers. Valid questions, according to Singer's theory, must appeal to phenomena that are public in (...) some sense and which have verifiable effects on our "mechanical images" of nature (which is not to say that such phenomena are themselves solely mechanical). From this perspective, Singer is able to give behavioral criteria for attributing "mind" to organisms and for such "mental faculties" as purpose, sensation, consciousness, and thought. It might be wondered how Singer's experimental concept of mind compares with B. F. Skinner's better-known concept of private events. Although there are difficulties involved in the interpretation of each, it would seem that Singer and Skinner are largely in agreement, although they emphasize different factors in the behavioral interpretation of mind. (shrink)

We present evidence from a pre-registered experiment indicating that a philosophical argument––a type of rational appeal––can persuade people to make charitable donations. The rational appeal we used follows Singer’s well-known “shallow pond” argument (1972), while incorporating an evolutionary debunking argument (Paxton, Ungar, & Greene 2012) against favoring nearby victims over distant ones. The effectiveness of this rational appeal did not differ significantly from that of a well-tested emotional appeal involving an image of a single child in need (Small, Loewenstein, (...) and Slovic 2007). This is a surprising result, given evidence that emotions are the primary drivers of moral action, a view that has been very influential in the work of development organizations. We did not find support for our pre-registered hypothesis that combining our rational and emotional appeals would have a significantly stronger effect than either appeal in isolation. However, our finding that both kinds of appeal can increase charitable donations is cause for optimism, especially concerning the potential efficacy of well-designed rational appeals. We consider the significance of these findings for moral psychology, ethics, and the work of organizations aiming to alleviate severe poverty. (shrink)

We argue on consequentialist grounds for the transfer of Sandai, an orangutan, to an orangutan sanctuary. First, we show that satisfying his interest in being transferred brings far greater value than the value achieved by keeping him confined. Second, we show that he has the capacities sufficient for personhood. Third, we show that all persons have a right to relative liberty insofar as they have interests they can exercise only under conditions of relative liberty. Fourth, we show that individuals need (...) not be able to assume social obligations and duties in order to be rights holders. -/- Our argument reflects commitments, as we say, to consequentialist reasoning about moral problems. However, we note that influential representatives of the other dominant ethical traditions—the deontological and Aristotelian traditions—reach our conclusion, too. It makes no difference, in this instance, which ethical theory one adopts. Under all of them, Sandai is a person with an interest in relative liberty entitled to habeas corpus protection. (shrink)

Forthy years after the issue of Animal Liberation (1975), this essay tries to make a critical assessment of the theses of Peter Singer on the moral status of animals, showing their historical evolution. Notwithstanding the limits of his utilitarian theoretical view, a good part of Singer’s moral reflection about animals reveals itself convincing and is finding some achievements in the positive legislation of a lot of countries. Following David DeGrazia, the author develops Singer’s theses in a gradualist (...) direction, pointing out that the problems of utilitarianism do not compromise the validity of the principle of equal consideration of interests, nor the main practical out-comes that the Australian philosopher draws from it. (shrink)

Partiendo de la crisis socioecológica del capitalismo, en este artículo realizamos una relectura marxista de dos potencialidades antiespecistas del principio de igual consideración de intereses y del principio de derecho a no ser cosa-propiedad. Para ello se retoma el capítulo dos de nuestra investigación El concepto de ‘Liberación animal’ en Peter Singer y Gary Francione visto desde un análisis marxista (2019). La primera potencialidad de los autores es una crítica ética a la reificación animal del capital y la segunda (...) potencialidad consiste en una desnaturalización teórica y ética del esencialismo del especismo capitalista. Al final, se explica la materialidad relativa de estas potencias antiespecistas y se defiende que la idea de la liberación animal de los autores no es del todo una utopía sino una topología signada en el desarrollo asimétrico de las fuerzas productivas y las fuerzas destructivas del capitalismo en crisis y su posible colapso. (shrink)

This work is an examination of Peter Singer’s notion of speciesism: case for animal rights in Ejagham culture. It primarily deals with an evaluation of the phenomenon of animal rights from the standpoint of Peter Singer’s notion of speciesism. Singer’s notion of speciesism deals with the moral obligation humans owe to animals as against the bias or prejudice that humanity has greater moral worth than non-human animals. Most opponents of speciesism contend that, animals are not members of (...) the moral community as such humans have no moral obligation to them. Contrary to this view, proponents of speciesism argue that animals are capable of suffering and should be considered morally. Thus, the emphasis here is that just like many societies of the world, the Ejagham people are guilty of speciesism. Among the several ways by which speciesism is practiced, this work identifies hunting, deforestation, bush burning and fishing as ways by which the Ejagham people are guilty. Using the tool of critical analysis, evaluation and prescription, this work submits that animals have interest, as such, should be granted rights. (shrink)

This paper presents a passage from Peter Singer on the pond analogy and comments on its content and use in the classroom, especially with respect to the development of the learners' argumentative skills.

Peter Singer’s famous and influential article is criticised in three main ways that can be considered libertarian, although many non-libertarians could also accept them: 1) the relevant moral principle is more plausibly about upholding an implicit contract rather than globalising a moral intuition that had local evolutionary origins; 2) its principle of the immorality of not stopping bad things is paradoxical, as it overlooks the converse aspect that would be the positive morality of not starting bad things and also (...) thereby conceptually eliminates innocence; and 3) free markets—especially international free trade—have been cogently explained to be the real solution to the global “major evils” of “poverty” and “pollution”, while “overpopulation” does not exist in free-market frameworks; hence charity is a relatively minor alleviant to the problem of insufficiently free markets. There are also various subsidiary arguments throughout. (shrink)

This commentary continues an exchange on eugenics in Monash Bioethics Review between Anomaly (2018), Wilson (2019), and Veit, Anomaly, Agar, Singer, Fleischman, and Minerva (2021). The eponymous question, “Can ‘Eugenics’ be Defended?”, is multiply ambiguous and does not receive a clear answer from Veit et al.. Despite their stated desire to move beyond mere semantics to matters of substance, Veit et al. concentrate on several uses of the term “eugenics” that pull in opposite directions. I argue, first, that Veit (...) et al. (2021) makes much the same error as does Anomaly (2018) in characterizing eugenics; second, that the paper misunderstands the relationship between eugenics and enhancement; and third, that it distorts the views expressed in my “Eugenics Undefended”. (shrink)

A short encyclopedia article on Peter Singer which discusses his views on the obligations that the global wealthy have to the global poor and on our obligations to non-human animals.

As parents of a young woman who very much resembles Ashley, we recognize the way her parents speak of their daughter’s preciousness, and of the love and joy she brings into their life. We know too well the hardships associated with rearing a child with severe physical and intellectual disabilities, especially in our own society, unyielding as it is to the medical needs even “normals” have. We would not have our daughter Sesha undergo similar interventions. We do not believe she (...) is a perpetual child, even if her intellectual capacities do not exceed those of a child, for she has lived for thirty-seven years in this world and with that has acquired knowledge, sensitivities, and sensibilities that no child of “comparable” capacities could have. (shrink)

The philosophy of science has traditionally assumed that knowledge should be organized in the form of theories. From theories propositions can be deduced that can be tested in experiments. Most propositions deduced from theories take the form of if-then statements. For example, if variable A increases, what happens to variable B, assuming that all other variables are held constant? However, an alternative way of organizing knowledge, in the form of producer-product relationships, was proposed by the philosopher E.A. Singer, Jr. (...) and advocated by two of his students, C. West Churchman and Russell L. Ackoff. Whether to structure knowledge in the form of theories or methods is related to the question of whether there is a fundamental difference between the natural and the social sciences. As opposed to Karl Popper’s doctrine of the unity of method, this paper argues that structuring knowledge in the form of methods is appropriate in applied fields, particularly in management where a large part of the task is to achieve agreement among a group of knowing subjects on an appropriate set of actions. (shrink)

Empirical evidence shows that non-conscious appraisal processes generate bodily responses to the environment. This finding is consistent with William James’s account of emotion, and it suggests that a general theory of emotion should follow James: a general theory should begin with the observation that physiological and behavioral responses precede our emotional experience. But I advance three arguments (empirical and conceptual arguments) showing that James’s further account of emotion as the experience of bodily responses is inadequate. I offer an alternative model, (...) according to which responses (physical states) are perceived and interpreted by a separate cognitive process, one that assigns meaning to those responses. The non-conscious appraisal process and the interpretive process are distinct, hence a two-stage model of emotion. This model is related to Schachter and Singer’s two-factor theory. Their often-discussed experiment showed that interpretation can play a role in producing emotions. But they do not show that interpretation is necessary for producing emotions in general, outside of the experimental conditions that generated unexplained arousal in subjects. My two-stage model supports this stronger claim by situating the interpretive process in a comprehensive model of emotion. (shrink)

In the third edition of ‘Practical Ethics’ (2011), Peter Singer reexamines the so-called “replaceability argument,” according to which merely sentient beings, as opposed to persons (self-conscious and with a robust sense of time), are replaceable—it is in principle permissible to kill them provided that they live pleasant lives that they would not have had otherwise and that they be replaced by equally happy beings. On this view, existence is a benefit and death is not a harm. Singer’s challenge (...) is to avoid (i) the replaceability of persons while preserving the replaceability of merely sentient beings, (ii) the implication that parents are morally required to procreate if they can have happy children, and (iii) to do avoid these implications without having the proposed solution (the “debit view” of preferences) imply negative utilitarianism, or the conclusion that a nonsentient universe is better than any sentient universe. I review Singer’s changing views since 1975 and I argue that his attempt to avoid the replaceability of persons fails: either both non-persons and persons are replaceable or neither are. Singer can only avoid this conclusion by appealing to controversial metaethical claims (attitude-independent moral objectivism) and/or giving up on essential features of utilitarianism. (shrink)

En este texto se realiza un análisis marxista del concepto de liberación animal en Peter Singer y Gary Francione, mostrando su convergencia liberal. El estudio comparativo se inscribe en el paradigma marxista dentro de los Critical Animal Studies (CAS) y la filosofía práctica. En un primer momento, se muestran las divergencias y convergencias entre el bienestar utilitario y la abolición deóntica, el neobienestarismo y el abolicionismo, haciendo énfasis en una preferencia común y fundamental por una sociedad liberal democrática post-especista (...) (i.e. un capitalismo democrático). En un segundo momento, desde una lectura marxista, se muestran dos potencialidades del principio de igual consideración y el principio de no reificación. En un tercer momento, se examinan las limitaciones de la crítica antiespecista a la explotación de los animales por las sociedades capitalistas, la desnaturalización de su especismo y el planteamiento de una topología política liberal reformista. Al final del proceso, se recapitulan y sopesan las cinco convergencias halladas, al igual que las dos potencialidades y limitaciones de los conceptos, como contribuciones a nuevos estudios sobre crítica e interpretación de los autores y nuevos abordajes del problema de la liberación animal. -/- This work realize a Marxist analysis of the concept of animal liberation in Peter Singer and Gary Francione, showing their liberal convergence. The comparative study is part of the Marxist paradigm within the Critical Animal Studies (CAS) and practical philosophy. At first, the divergences and convergences between utilitarian welfare and deontic abolition, new welfarism and abolitionism are shown, emphasizing a common and fundamental preference for a post-speciesist liberal democratic society (i.e. a democratic capitalism). In a second moment, from a Marxist reading, two potentialities of the principle of equal consideration and the principle of non-reification are shown. In a third moment, the limitations of the anti-speciesist critique of the exploitation of animals by capitalist societies, the denaturation of their speciesism and the approach of a liberal reformist political topology are examined. At the end of the process, the five convergences found are recapitulated and weighed, as well as the two potentialities and limitations of the concepts, as contributions to new studies on criticism and interpretation of the authors and new approaches to the problem of animal liberation. (shrink)

It is often argued that Henry Sidgwick is a conservative about moral matters, while Peter Singer is a radical. Both are exponents of a utilitarian account of morality but they use it to very different effect. I think this way of viewing the two is mistaken or, at the very least, overstated. Sidgwick is less conservative than has been suggested and Singer is less radical than he initially seems. To illustrate my point, I will rely on what each (...) has to say about the moral demands of suffering and destitution. (shrink)

Some people (e.g., Drs. Paul and Susan Lim) and, with them, organizations (e.g., the National Embryo Donation Center) believe that, morally speaking, the death of a frozen human embryo is a very bad thing. With such people and organizations in mind, the question to be addressed here is as follows: if one believes that the death of a frozen embryo is a very bad thing, ought, morally speaking, one prevent the death of at least one frozen embryo via embryo adoption? (...) By way of a three‐premise argument, one of which is a moral principle first introduced by Peter Singer, my answer to this question is: at least some of those who believe this ought to. (Just who the “some” are is identified in the paper.) If this is correct, then, for said people, preventing the death of a frozen embryo via embryo adoption is not a morally neutral matter; it is, instead, a morally laden one. Specifically, their intentional refusal to prevent the death of a frozen embryo via embryo adoption is, at a minimum, morally criticizable and, arguably, morally forbidden. Either way, it is, to one extent or another, a moral failing. (shrink)

Peter Singer argues that we’re obligated to donate our entire expendable income to aid organizations. One premiss of his argument is "If it is in your power to prevent something bad from happening, without sacrificing anything nearly as important, it is wrong not to do so." Singer defends this by noting that commonsense morality requires us to save a child we find drowning in a shallow pond. I argue that Singer’s Drowning Child thought experiment doesn’t justify this (...) premiss. I offer my own Drowning Children thought experiment, which should reveal that commonsense morality entails that premiss two is actually false. (shrink)

A polemical account of Australian philosophy up to 2003, emphasising its unique aspects (such as commitment to realism) and the connections between philosophers' views and their lives. Topics include early idealism, the dominance of John Anderson in Sydney, the Orr case, Catholic scholasticism, Melbourne Wittgensteinianism, philosophy of science, the Sydney disturbances of the 1970s, Francofeminism, environmental philosophy, the philosophy of law and Mabo, ethics and Peter Singer. Realist theories especially praised are David Armstrong's on universals, David Stove's on logical (...) probability and the ethical realism of Rai Gaita and Catholic philosophers. In addition to strict philosophy, the book treats non-religious moral traditions to train virtue, such as Freemasonry, civics education and the Greek and Roman classics. (shrink)

Concerning abortion and infanticide, ethics has always seen to each one as quite puzzling an issue. The dilemma expectedly goes like this: “Are they morally good, permissible or acceptable, or are they not?” All three major approaches in ethics, viz. virtue ethics, deontology and consequentialism, have fervently exerted themselves in order to settle both. A virtue ethicist is expected to approach the issue wondering: “Is performing abortion and infanticide indicative of virtues, to wit of character traits that the virtuous agent (...) possesses?” A deontologist would bring the dilemma up for discussion asking: “Is conducting abortion and infanticide in accordance with some moral rule or principle?” To an act utilitarian, on the other hand, the same question would strike as: “Do abortion and infanticide promote the best consequences, to wit those in which happiness is maximized?” All three approaches have been applied to the subject matter ever since the classic era, sadly with no remarkable success and, most of the times, even without the slightest suspicion of the promised rigor. (shrink)

Celem artykułu jest pokazanie konsekwencji przyjęcia longtermizmu w wersji skrajnej dla postrzegania obowiązku likwidacji skrajnej biedy w świetle zasady równego rozważania interesów. W artykule argumentuję na rzecz hipotezy, że konsekwentny zwolennik myśli etycznej Petera Singera skorygowanej o postulaty long- termizmu musi przyjąć, iż obowiązki wobec przyszłych ludzi uchylają obowiązki wobec obecnie żyjących ludzi, nawet znajdujących się w tak niekorzystnym położeniu jak skrajna bieda. W pierwszej części artykułu szkicuję argumenty Singera na rzecz moralnego obowiązku likwidacji skrajnej biedy za pomocą efektywnych metod (...) aż do znacznego obniżenia własnego poziomu życia. Przybliżenie tych szeroko znanych poglądów stanowi ramy argumentacji na rzecz hipotezy badawczej. Następnie krótko charakteryzuję efektywny altruizm, na gruncie któ- rego wyrosło nowe podejście w ramach konsekwencjalizmu: longtermizm. Postulaty i założenia longtermizmu w ujęciu W. MacAskilla i T. Orda zestawiam z myślą Singera, aby doprowadzić ich argumentację do logicznych wniosków, które wspierają hipotezę badawczą artykułu -/- Moral duties towards the poor and longtermism The aim of the article is to show the consequences of adopting strong longtermism for the perception of the obligation to eliminate extreme poverty in the light of the principle of equal consideration of interests. In the article, I argue in favor of the hypothesis that a consistent supporter of Peter Singer’s ethical thought adjusted to the postulates of longtermism must assume that obligations towards future people abrogate duties towards current people, even those in such an unfavorable situation as extreme poverty. In the first part of the article, I sketch Singer’s arguments for the moral obligation to eliminate extreme poverty using effective methods, up to significant decrease in one’s level of life. An outline of these widely known views constitutes the framework of arguments in favor of the research hypothesis. Then I briefly characterize effective altruism, which is the basis for a new approach within consequentialism: longtermism. I compare the postulates and assumptions of longtermism as presented by W. MacAskill and T. Ord with Singer’s thought in order to bring their argumen- tation to logical conclusions that support the research hypothesis of this article. (shrink)

A few months after the publication of the French translation of his book Causing Death and Saving Lives, Jonathan Glover was kind enough to return to some of the theses defended in this book. In forty years, this work has become a classic of applied ethics in the English-speaking world. Glover tackled a series of questions involving the lives of men and women, including abortion, infanticide, suicide, euthanasia, the death penalty and war. We asked him here about the method he (...) considers the best in moral philosophy, and returned to his criticism of certain dominant ideas at the time. Jonathan Glover also discusses some of the positions of his former students Peter Singer and Jeff McMahan. (shrink)