Hyperalgesia can arise from peripheral sensitization, on-going peripheral activation, and central plasticity. In the target article, coderre & katz argue that all three mechanisms contribute to hyperalgesia. In contrast, we believe that existing experimental evidence suggests that central plasticity plays only an insignificant role in most experimental models and clinical presentations of hyperalgesia induced by tissue injury or chemical activation of sensory receptors.

Alain Locke is most known for his involvement in the Harlem Renaissance. However, he received his PhD in philosophy from Harvard University in 1918, and produced a very large corpus of philosophical work. His work shows him to have been a sophisticated philosopher who thought through practical and theoretical problems regarding the nature of cosmopolitanism, democracy, race, value, religion, art, and education. Although Locke’s philosophical work has been discussed in parts, there has been no theorizing about how his different philosophical (...) commitments fit together. In this book Corey L. Barnes begins to systematize Locke’s philosophical thought, showing how his democratic theory, philosophy of race, and value theory are connected to and undergirded by a commitment to cosmopolitanism. In so doing, Barnes unearths aspects of Locke’s thought—for example, his economic thinking—that have not been accorded attention and reimagines parts of his work about which have been theorized, all while bringing Locke into current debates about each subject. (shrink)

In the target article, we presented the hypothesis that parasite-stress variation was a causal factor in the variation of in-group assortative sociality, cross-nationally and across the United States, which we indexed with variables that measured different aspects of the strength of family ties and religiosity. We presented evidence supportive of our hypothesis in the form of analyses that controlled for variation in freedom, wealth resources, and wealth inequality across nations and the states of the USA. Here, we respond to criticisms (...) from commentators and attempt to clarify and expand the parasite-stress theory of sociality used to fuel our research presented in the target article. (shrink)

In the target article, we presented the hypothesis that parasite-stress variation was a causal factor in the variation of in-group assortative sociality, cross-nationally and across the United States, which we indexed with variables that measured different aspects of the strength of family ties and religiosity. We presented evidence supportive of our hypothesis in the form of analyses that controlled for variation in freedom, wealth resources, and wealth inequality across nations and the states of the USA. Here, we respond to criticisms (...) from commentators and attempt to clarify and expand the parasite-stress theory of sociality used to fuel our research presented in the target article. (shrink)

Positive psychology aims to help people live and flourish, rather than merely to exist. The term “positive psychology” may seem to imply that all other psychology is in some way negative, but that implication is unintended and untrue. However the term “positive psychology” contains a softer indictment, namely, that psychology has become unbalanced. In the years since World War II psychology, guided by its funding agencies and the rising social conscience of its practitioners, has focused on helping people and society (...) solve serious problems. Clinical psychology has focused on mental illness, social psychology has focused on prejudice, racism, and aggression, and cognitive psychology has focused on diagnosing the errors and biases that lead to bad decisions. There are good reasons to spend more time and money on illness and problems than on health and strengths. Utilitarianism, compassion, and a concern for equality suggest that people in great pain should be helped before those who are not suffering. But there are at least two costs to focusing on illness, problems, and weaknesses. The first cost is an inappropriately negative view of human nature and the human condition. We teach students about the many ways the mind can go wrong, and about the frightening prevalence rates of depression, child abuse, and eating disorders. We teach students that people are fundamentally selfish creatures whose occasional good deeds are accidental products of self-esteem management. Is such cynicism and pessimism really justified? Positive psychology is realistic. It does not claim that human nature is all sweetness and light, but it does offer a more balanced view. Most people are doing reasonably well in life, and have the capacity to thrive and flourish, even when -- or especially when -- confronted with challenges, setbacks, and suffering (see Ryff & Singer, this volume; Wethington, this volume). Most people have experienced powerful feelings of moral elevation and inspiration that are unconnected to any need for self-esteem (see Haidt, this volume).. (shrink)

Cosmopolitanism seems to appeal to liberal neutrality because both are committed to core values such as reciprocity, autonomy, respect for the individual, personal accountability, and inclusivity. Further, cosmopolitanism is legitimate for many only insofar as it endorses value-pluralism in open societies, which is a staple of liberal neutrality. And yet, one might think that there is a moral obligation to create a cosmopolitan community. One can think of this as moral (normative) cosmopolitanism. To the end of creating a cosmopolitan community, (...) certain values ought to be fostered in laws and public policies, and certain attitudes ought to be cultivated. This leads to a potential impasse, namely if cosmopolitanism is committed to neutrality then it cannot promote its normativity, and if it is not committed to neutrality then it cannot promote value-pluralism. I propose a solution to this potential impasse by examining several of the democratic and cosmopolitan commitments of Alain Locke. What I take from Locke is his grounding of both pluralism and moral cosmopolitanism in democratic, time-honored principles that exist in all acts of free association, namely: liberty, equality, and fraternity. These values, of necessity, pervade all political conceptions of good lives because all political conceptions require what acts of free association allow, namely community with others. To this end, I provide an argument for how someone can consistently be committed to both moral cosmopolitanism and liberal neutrality. (shrink)

Cosmopolitanism seems to appeal to liberal neutrality because both are committed to core values such as reciprocity, autonomy, respect for the individual, personal accountability, and inclusivity. Further, cosmopolitanism is legitimate for many only insofar as it endorses value-pluralism in open societies, which is a staple of liberal neutrality. And yet, one might think that there is a moral obligation to create a cosmopolitan community. One can think of this as moral cosmopolitanism. To the end of creating a cosmopolitan community, certain (...) values ought to be fostered in laws and public policies, and certain attitudes ought to be cultivated. This leads to a potential impasse, namely if cosmopolitanism is committed to neutrality then it cannot promote its normativity, and if it is not committed to neutrality then it cannot promote value-pluralism. I propose a solution to this potential impasse by examining several of the democratic and cosmopolitan commitments of Alain Locke. What I take from Locke is his grounding of both pluralism and moral cosmopolitanism in democratic, time-honored principles that exist in all acts of free association, namely: liberty, equality, and fraternity. These values, of necessity, pervade all political conceptions of good lives because all political conceptions require what acts of free association allow, namely community with others. To this end, I provide an argument for how someone can consistently be committed to both moral cosmopolitanism and liberal neutrality. (shrink)

What is the origin of individual differences in ideology and personality? According to the parasite stress hypothesis, the structure of a society and the values of individuals within it are both influenced by the prevalence of infectious disease within the society's geographical region. High levels of infection threat are associated with more ethnocentric and collectivist social structures and greater adherence to social norms, as well as with socially conservative political ideology and less open but more conscientious personalities. Here we use (...) an agent-based model to explore a specific opportunities-parasites trade-off hypothesis, according to which utility-maximizing agents place themselves at an optimal point on a trade-off between the gains that may be achieved through accessing the resources of geographically or socially distant out-group members through openness to out-group interaction, and the losses arising due to consequently increased risks of exotic infection to which immunity has not been developed. We examine the evolution of cooperation and the formation of social groups within social networks, and we show that the groups that spontaneously form exhibit greater local rather than global cooperative networks when levels of infection are high. It is suggested that the OPTO model offers a first step toward understanding the specific mechanisms through which environmental conditions may influence cognition, ideology, personality, and social organization. (shrink)

In the target article, we presented the hypothesis that parasite-stress variation was a causal factor in the variation of in-group assortative sociality, cross-nationally and across the United States, which we indexed with variables that measured different aspects of the strength of family ties and religiosity. We presented evidence supportive of our hypothesis in the form of analyses that controlled for variation in freedom, wealth resources, and wealth inequality across nations and the states of the USA. Here, we respond to criticisms (...) from commentators and attempt to clarify and expand the parasite-stress theory of sociality used to fuel our research presented in the target article. (shrink)

In this paper, we reconstruct Kant’s notion of the practically conditioned, introduced in the Dialectic of Pure Practical Reason, by drawing on Kant’s general account of the faculty of reason presented in the Transcendental Dialectic of the Critique of Pure Reason. We argue that practical reason’s activity of seeking the practically unconditioned for a given condition generates two different conceptions of the practically unconditioned and identify these as virtue and (the ideal of) happiness. We then account for how and why (...) reason proceeds to combine these two distinct ideas into the composite idea of the highest good. Last, we draw on our discussion to determine more precisely what Kant intends by the ‘supremacy’ of virtue within reason’s idea of the highest good. (shrink)

This study examines the case of community resource mobilization within the context of a farmers market incentive program in Washington D.C., USA to illustrate the ways in which providing opportunities for people impacted by food inequities to develop and lead programming can help to promote food access. Through an analysis of interviews with 36 participants in the Produce Plus program, some of whom also served as paid staff and volunteers with the program, this study examines the ways that group-level social (...) interactions among program participants helped to ensure the program was accessible and accountable to the primarily Black communities that it serves. Specifically, we explore a particular set of social interactions, which we collectively term social solidarity, as a community-level form of social infrastructure that program volunteers and participants mobilized to support access to fresh, local food in their communities. We also examine the elements of the Produce Plus program that contributed to the flow of social solidarity within the program, providing insight into the ways in which the structure of food access programs can serve as a social conduit to facilitate or hinder the mobilization of community cultural resources like social solidarity. (shrink)

Objective: The aim of the current study was to investigate associations, unique and interactive, between mothers’ and children’s histories of childhood sexual abuse (CSA) and children’s psychiatric outcomes using an intergenerational perspective. Further, we were particularly interested in examining whether maternal reflective functioning about their own trauma (T-RF) was associated with lower likelihood of children’s abuse exposure (among children of CSA-exposed mothers). Method: One hundred and eleven children (Mage= 9.53 years; 43 sexual abuse victims) and their mothers (Mage= 37.99; 63 (...) sexual abuse victims) participated in this study. Mothers completed the Parent Development Interview (PDI), which yielded assessments of RF regarding their own experiences of abuse, and also reported on their children’s internalizing and externalizing symptoms. Results: Children of CSA-exposed mothers were more likely to have experienced CSA. A key result was that among CSA-exposed mothers, higher maternal T-RF regarding their own abuse was associated with lower likelihood of child CSA-exposure. Mothers’ and children’s CSA histories predicted children’s internalizing and externalizing symptoms, such that CSA exposure for mother or child was associated with greater symptomatology in children. Conclusions: The findings show that the presence of either maternal or child CSA is associated with more child psychological difficulties. Importantly in terms of identifying potential protective factors, maternal T-RF is associated with lower likelihood of CSA exposure in children of CSA-exposed mothers. We discuss these findings in the context of the need for treatments focusing on increasing Trauma - RF in mothers and children in the context of abuse to facilitate adaptation and reduce the intergenerational risk. (shrink)

Music training is associated with enhanced executive function but little is known about the extent to which harmonic aspects of musical training are associated with components of executive function. In the current study, an array of cognitive tests associated with one or more components of executive function, was administered to young adult musicians and non-musicians. To investigate how harmonic aspects of musical training relate to executive function, a test of the ability to compose a four-part harmony was developed and administered (...) to musicians. We tested the working hypothesis that musicians would outperform non-musicians on measures of executive function, and that among musicians, the ability to harmonize would correlate positively with measures of executive function. Results indicate that musicians outperformed non-musicians on the Tower of London task, a measure of planning and problem-solving. Group differences were not detected on tasks more selective for inhibitory control, conflict resolution, or working memory. Among musicians, scores on the harmony assessment were positively correlated with performance of the Tower of London task. Taken together, the current results support a strong relationship between musicianship and planning and problem solving abilities, and indicate that the ability to harmonize is associated with components of executive function contributing to planning and problem solving. (shrink)

Gender discrimination continues to plague organizations. While the advent of the Internet and the digitization of commerce have provided both a mechanism by which goods and services can be exchanged, as well as an efficient way for consumers to voice their opinions about retailers (i.e., via online rating systems), recent work has begun to uncover significant biases that manifest during the review process. In particular, it has been suggested that the gig-economy’s elimination of previously anonymous arm’s-length transactions may re-introduce bias (...) into perceptions of quality. In this work, we build upon research that has identified biases based on ascriptive characteristics in rating systems of ridesharing platforms. In doing so, we conduct an online experiment using a series of factorial vignettes to consider not only willingness to transact but post-transaction perceptions of quality. Findings suggest that female drivers are not penalized ex ante for taking on gender incongruent roles, i.e., driving, and experience no penalty when a rider reports a high-quality experience. However, conditional upon a lower quality experience, there is a disproportionate penalty for female drivers. Strikingly, we also observe that historic high quality does not serve as a buffer against such penalties, as prior literature would suggest. These findings underscore the challenges platforms face in ensuring their participants are being evaluated in a fair and impartial way, and highlight the difficulties present when non-employees (customers) are rating non-employees (drivers) of the firm. (shrink)

Background and AimsEnd-of-life discussions can be difficult for seriously ill adolescents and young adults. Researchers aimed to determine whether completing Voicing My CHOiCES —a research-informed advance care planning guide—increased communication with family, friends, or health care providers, and to evaluate the experience of those with whom VMC was shared.MethodsFamily, friends, or HCPs who the AYAs had shared their completed VMC with were administered structured interviews to assess their perception of the ACP discussion, changes in their relationship, conversation quality, and whether (...) the discussion prompted changes in care. Open-ended responses underwent thematic analysis.ResultsOne-month post-completion, 65.1% of AYA had shared VMC completion with a family member, 22.6% with a friend, and 8.9% with an HCP. Among a sample of respondents, family and friends reported a positive change in their relationship with the AYA. Participant descriptions of the experience fell into five themes: positive experience, difficult experience, appreciated a guide to facilitate discussion, provided relief, and created worry/anxiety. Only 1 HCP noted a treatment change. Family, friends, and HCP did not think the AYA would have discussed EoL preferences without completing VMC.ConclusionsVMC has potential to enhance communication about ACP between AYA and their family and friends, though less frequently with HCPs. Participants reported a positive change in their relationship with the AYA after discussing VMC, and described experiencing the conversation as favorable, even when also emotionally difficult. (shrink)

A Kaufmann model is an \(\omega _1\) -like, recursively saturated, rather classless model of \({{\mathsf {P}}}{{\mathsf {A}}}\) (or \({{\mathsf {Z}}}{{\mathsf {F}}} \) ). Such models were constructed by Kaufmann under the combinatorial principle \(\diamondsuit _{\omega _1}\) and Shelah showed they exist in \(\mathsf {ZFC}\) by an absoluteness argument. Kaufmann models are an important witness to the incompactness of \(\omega _1\) similar to Aronszajn trees. In this paper we look at some set theoretic issues related to this motivated by the seemingly (...) naïve question of whether such a model can be “killed” by forcing without collapsing \(\omega _1\). We show that the answer to this question is independent of \(\mathsf {ZFC}\) and closely related to similar questions about Aronszajn trees. As an application of these methods we also show that it is independent of \(\mathsf {ZFC}\) whether or not Kaufmann models can be axiomatized in the logic \(L_{\omega _1, \omega } (Q)\) where _Q_ is the quantifier “there exists uncountably many”. (shrink)

Conducting or overseeing research in correctional settings requires knowledge of specific federal rules and regulations designed to protect the rights of individuals in incarceration. To investigate the extent to which relevant groups possess this knowledge, using a 10-item questionnaire, we surveyed 885 IRB prisoner representatives, IRB members and chairs with and without experience reviewing HIV/AIDS correctional protocols, and researchers with and without correctional HIV/AIDS research experience. Across all groups, respondents answered 4.5 of the items correctly. Individuals who have overseen or (...) conducted correctional research had the highest scores; however, even these groups responded correctly only to slightly more than half of the items. These findings emphasize the need for ongoing training in federal guidelines governing correctional research, particularly for those individuals who are embarking on this type of research. (shrink)

Enter The Expanse to explore questions of the meaning of human life, the concept of justice, and the nature of humanity, featuring a foreword from author James S.A. Corey The Expanse and Philosophy investigates the philosophical universe of the critically acclaimed television show and Hugo Award-winning series of novels. Original essays by a diverse international panel of experts illuminate how essential philosophical concepts relate to the meticulously crafted world of The Expanse, engaging with topics such as transhumanism, belief, culture, (...) environmental ethics, identity, colonialism, diaspora, racism, reality, and rhetoric. Conceiving a near-future solar system colonized by humanity, The Expanse provokes a multitude of moral, ethical, and philosophical queries: Are Martians, Outer Planets inhabitants, and Earthers different races? Is Marco Inaros a terrorist? Can people who look and sound different, like Earthers and Belters, ever peacefully co-exist? Should science be subject to moral rules? Who is sovereign in space? What is the relationship between human progress and aggression? The Expanse and Philosophy helps you answer these questions—and many more. Covers the first six novels in The Expanse series and five seasons of the television adaptation Addresses the philosophical issues that emerge from socio-economics and geopolitics of Earth, Mars, and the Outer Planets Alliance Offers fresh perspectives on the themes, characters, and storylines of The Expanse Explores the connections between The Expanse and thinkers such as Aristotle, Kant, Locke, Hannah Arendt, Wittgenstein, Descartes, and Nietzsche Part of the popular Blackwell Philosophy and Pop Culture series, The Expanse and Philosophy is a must-have companion for avid readers of James S.A. Corey’s novels and devotees of the television series alike. (shrink)

Cet article se veut une critique de la thèse défendue par [Cleland 1993], laquelle soutient que la thèse de Church doit être rejetée puisque les limites du calcul dépendent de la structure physique du monde. Dans un premier temps, nous offrons un (très) bref aperçu de la thèse de Church puis nous présentons l argument de Cleland. Par la suite, nous proposons une analyse critique de son argument, ce qui nous amènera à faire quelques distinctions conceptuelles par rapport (...) aux notions qui concernent la calculabilité. Finalement, nous montrons que les limites du calcul ne sont pas physiques mais bien logiques. En résumé, notre argument est que les limites du calcul sont déterminées en partie par le fait qu’une procédure effective doit pouvoir être décrite de manière finie. (shrink)

Cet article se veut une critique de la thèse défendue par [Cleland 1993], laquelle soutient que la thèse de Church doit être rejetée puisque les limites du calcul dépendent de la structure physique du monde. Dans un premier temps, nous offrons un bref aperçu de la thèse de Church puis nous présentons l argument de Cleland. Par la suite, nous proposons une analyse critique de son argument, ce qui nous amènera à faire quelques distinctions conceptuelles par rapport aux (...) notions qui concernent la calculabilité. Finalement, nous montrons que les limites du calcul ne sont pas physiques mais bien logiques. En résumé, notre argument est que les limites du calcul sont déterminées en partie par le fait qu’une procédure effective doit pouvoir être décrite de manière finie.Even though Church’s thesis is widely accepted among mathematicians, it is nonetheless controversial. In this paper, we argue against the position of [Cleland 1993], which defends that Church s thesis must be rejected because the limits of computation depend upon the physical structure of the world. We first give a brief overview of Church’s thesis and then we present Cleland s argument. We then propose a critical analysis of Cleland s argu­ment, which will involve some conceptual distinctions regarding the notion of computability, and finally we will show that the limits of computation are not physical but logical. In short, we argue that computation is limited by the fact that an effective procedure must be described in a finite way. (shrink)

Cet article se veut une critique de la thèse défendue par [Cleland 1993], laquelle soutient que la thèse de Church doit être rejetée puisque les limites du calcul dépendent de la structure physique du monde. Dans un premier temps, nous offrons un (très) bref aperçu de la thèse de Church puis nous présentons l argument de Cleland. Par la suite, nous proposons une analyse critique de son argument, ce qui nous amènera à faire quelques distinctions conceptuelles par rapport (...) aux notions qui concernent la calculabilité. Finalement, nous montrons que les limites du calcul ne sont pas physiques mais bien logiques. En résumé, notre argument est que les limites du calcul sont déterminées en partie par le fait qu’une procédure effective doit pouvoir être décrite de manière finie. (shrink)

On Thursday, August 21, 1862, Edmond and Jules de Goncourt registered in their Journal a short entry on the nature of life: “Qu’est-ce que la vie? L’usufruit d’une agrégation de molecules”—What is life? The usufruct of an aggregation of molecules. Although the extraordinary chronicles of the social and cultural life of the Second French Empire written by the Goncourt brothers includes names of their most distinguished contemporaries, the writers, artists, politicians and socialites they befriended outnumber by far the scientists. It (...) is almost certain that they were never close to Felix Dujardin, a distinguished microbiologist and member of the French Academy of Sciences. In 1835, Dujardin had started crushing ciliates under the microscope and observed that the tiny cells exuded a jellylike substance, which he described as a “gelée vivante” and was eventually named “protoplasm” by Johann E. Purkinje and Hugo von Mohl. The small note written by the Goncourts in their journal is an indica. (shrink)

When faced with a dilemma between believing what is supported by an impartial assessment of the evidence (e.g., that one's friend is guilty of a crime) and believing what would better fulfill a moral obligation (e.g., that the friend is innocent), people often believe in line with the latter. But is this how people think beliefs ought to be formed? We addressed this question across three studies and found that, across a diverse set of everyday situations, people treat moral considerations (...) as legitimate grounds for believing propositions that are unsupported by objective, evidence-based reasoning. We further document two ways in which moral considerations affect how people evaluate others' beliefs. First, the moral value of a belief affects the evidential threshold required to believe, such that morally beneficial beliefs demand less evidence than morally risky beliefs. Second, people sometimes treat the moral value of a belief as an independent justification for belief, and on that basis, sometimes prescribe evidentially poor beliefs to others. Together these results show that, in the folk ethics of belief, morality can justify and demand motivated reasoning. (shrink)

Experimental research is commonly held up as the paradigm of "good" science. Although experiment plays many roles in science, its classical role is testing hypotheses in controlled laboratory settings. Historical science is sometimes held to be inferior on the grounds that its hypothesis cannot be tested by controlled laboratory experiments. Using contemporary examples from diverse scientific disciplines, this paper explores differences in practice between historical and experimental research vis-à-vis the testing of hypotheses. It rejects the claim that historical research is (...) epistemically inferior. For as I argue, scientists engage in two very different patterns of evidential reasoning and, although there is overlap, one pattern predominates in historical research and the other pattern predominates in classical experimental research. I show that these different patterns of reasoning are grounded in an objective and remarkably pervasive time asymmetry of nature. (shrink)

Evidence-based practice (EBP) is a relatively recent incarnation in social work's long history of valuing evidence as a basis for practice. Few argue with the ethics and usefulness of grounding practice in empirically tested interventions. Critics of EBP instead focus on how it is defined and implemented. Critiques include what counts as evidence, who makes decisions regarding research agendas and processes, and the lack of attention to context. This essay reflects on such critiques and suggests that social work, as a (...) profession that values human diversity, equality, and self-determination, is well situated to shed light on such debates about EBP. As a profession that supports a person-in-environment perspective, we must examine not only the theory but the practice of EPB in academic, institutional, and societal settings. It is also argued that, owing to our professional mission, it is not enough to acknowledge the risk of oppression and harm; we are obligated to take them seriously and include such potential for harm in our assessment of so-called best practices. (shrink)

Explores the notion of selfhood in the wake of the post-structuralist debates.

In earlier work ( Cleland [2001] , [2002]), I sketched an account of the structure and justification of ‘prototypical’ historical natural science that distinguishes it from ‘classical’ experimental science. This article expands upon this work, focusing upon the close connection between explanation and justification in the historical natural sciences. I argue that confirmation and disconfirmation in these fields depends primarily upon the explanatory (versus predictive or retrodictive) success or failure of hypotheses vis-à-vis empirical evidence. The account of historical explanation (...) that I develop is a version of common cause explanation. Common cause explanation has long been vindicated by appealing to the principle of the common cause. Many philosophers of science (e.g., Sober and Tucker) find this principle problematic, however, because they believe that it is either purely methodological or strictly metaphysical. I defend a third possibility: the principle of the common cause derives its justification from a physically pervasive time asymmetry of causation (a.k.a. the asymmetry of overdetermination). I argue that explicating the principle of the common cause in terms of the asymmetry of overdetermination illuminates some otherwise puzzling features of the practices of historical natural scientists. (shrink)

Representation is central to contemporary theorizing about the mind/brain. But the nature of representation--both in the mind/brain and more generally--is a source of ongoing controversy. One way of categorizing representational types is to distinguish between the analog and the digital: the received view is that analog representations vary smoothly, while digital representations vary in a step-wise manner. I argue that this characterization is inadequate to account for the ways in which representation is used in cognitive science; in its place, I (...) suggest an alternative taxonomy. I will defend and extend David Lewis's account of analog and digital representation, distinguishing analog from continuous representation, as well as digital from discrete representation. I will argue that the distinctions available in this four-fold account accord with representational features of theoretical interest in cognitive science more usefully than the received analog/digital dichotomy. (shrink)

The question ‘what is life?’ has long been a source of philosophical debate and in recent years has taken on increasing scientific importance. The most popular approach among both philosophers and scientists for answering this question is to provide a “definition” of life. In this article I explore a variety of different definitional approaches, both traditional and non-traditional, that have been used to “define” life. I argue that all of them are deeply flawed. It is my contention that a scientifically (...) compelling understanding of the nature of life presupposes an empirically adequate scientific theory (vs. definition) of life; as I argue, scientific theories are not the sort of thing that can be encapsulated in definitions. Unfortunately, as I also discuss, scientists are currently in no position to formulate even a tentative version of such a theory. Recent discoveries in biology and biochemistry have revealed that familiar Earth life represents a single example that may not be representative of life. If this is the case, life on Earth today provides an empirically inadequate foundation for theorizing about life considered generally. I sketch a strategy for procuring the needed additional examples of life without the guidance of a definition or theory of life, and close with an application to NASA’s fledgling search for extraterrestrial life. (shrink)

Relative to digital computation, analogue computation has been neglected in the philosophical literature. To the extent that attention has been paid to analogue computation, it has been misunderstood. The received view—that analogue computation has to do essentially with continuity—is simply wrong, as shown by careful attention to historical examples of discontinuous, discrete analogue computers. Instead of the received view, I develop an account of analogue computation in terms of a particular type of analogue representation that allows for discontinuity. This account (...) thus characterizes all types of analogue computation, whether continuous or discrete. Furthermore, the structure of this account can be generalized to other types of computation: analogue computation essentially involves analogue representation, whereas digital computation essentially involves digital representation. Besides being a necessary component of a complete philosophical understanding of computation in general, understanding analogue computation is important for computational explanation in contemporary neuroscience and cognitive science. (shrink)

There is no broadly accepted definition of ‘life.’ Suggested definitions face problems, often in the form of robust counter-examples. Here we use insights from philosophical investigations into language to argue that defining ‘life’ currently poses a dilemma analogous to that faced by those hoping to define ‘water’ before the existence of molecular theory. In the absence of an analogous theory of the nature of living systems, interminable controversy over the definition of life is inescapable.

Brettschneider extends this analysis from freedom of expression to the freedoms of religion and association, and he shows that value democracy can uphold the protection of these freedoms while promoting equality for all citizens.