Psychological construction constitutes a different paradigm for the scientific study of emotion when compared to the current paradigm that is inspired by faculty psychology. This new paradigm is more consistent with the post-Darwinian conceptual framework in biology that includes a focus on (a) population thinking (vs. typologies), (b) domain-general core systems (vs. physical essences), and (c) constructive analysis (vs. reductionism). Three psychological construction approaches (the OCC model, the iterative reprocessing model, and the conceptual act theory) are discussed with respect to (...) these ideas. (shrink)

Using Carnap’s concept explication, we propose a theory of concept formation in mathematics. This theory is then applied to the problem of how to understand the relation between the concepts formal proof and informal, mathematical proof.

According to David Chalmers, the hard problem of consciousness consists of explaining how and why qualitative experience arises from physical states. Moreover, Chalmers argues that materialist and reductive explanations of mentality are incapable of addressing the hard problem. In this chapter, I suggest that Chalmers’ hard problem can be usefully distinguished into a ‘how question’ and ‘why question,’ and I argue that evolutionary biology has the resources to address the question of why qualitative experience arises from brain states. From this (...) perspective, I discuss the different kinds of evolutionary explanations (e.g., adaptationist, exaptationist, spandrel) that can explain the origins of the qualitative aspects of various conscious states. This argument is intended to clarify which parts of Chalmers’ hard problem are amenable to scientific analysis. (shrink)

Los conceptos de evolución y cambio evolutivo son a la vez laxos y polisémicos: se aplican a fenómenos muy diferentes y no siempre se definen con precisión. La aplicación extendida del paradigma neo-darwinista clásico, además, suele imponer un esquema adaptacionista al análisis de los hechos evolutivos, en el cual las funciones juegan un papel lógicamente anterior a los rasgos y sus formas. En este artículo proponemos, como etapa previa a la formulación de hipótesis sobre las causas del cambio, un modelo (...) de espacio forma-función que pueda responder a preguntas como cuándo se da un cambio en los rasgos de una arquitectura biológica y de qué tipo son estos cambios. Un modelo de este tipo nos permite ver claramente cuándo se da un cambio en la forma o en la función y qué alcance evolutivo tiene. (shrink)

Alexander Bird indicates that the significance of Thomas Kuhn in the history of philosophy of science is somehow paradoxical. On the one hand, Kuhn was one of the most influential and important philosophers of science in the second half of the twentieth century. On the other hand, nowadays there is little distinctively Kuhn’s legacy in the sense that most of Kuhn’s work has no longer any philosophical significance. Bird argues that the explanation of the paradox of Kuhn’s legacy is that (...) Kuhn took a direction opposite to that of the mainstream of the philosophy of science in his later academic career. This paper aims to provide a new way to understand and develop Kuhn’s legacy by revisiting the development of Kuhn’s philosophy of science in 1970s and proposing a new account of exemplar. Firstly, I propose my diagnosis of Kuhn’s “wrong turning” by identifying Kuhn’s two novel contributions: the introduction of paradigm and the proposal of the incommensurability thesis. Secondly, I argue that Kuhn made a conceptual/terminological turn from paradigm to theory, which undermined Kuhn’s novel contributions. Thirdly, I propose a new articulation of exemplar and propose an exemplar-based approach to analysing the history of science. Finally, I show how the exemplar-based approach can be applied to analyse the history of science by my case study of the early development of genetics. (shrink)

This paper focuses on evaluating Odera Oruka’s role as an expert witness in customary law for the Luo community during the Nairobi, Kenya-based trial in 1987 to decide on the place of the burial of S.M. Otieno. During that trial, an understanding of Luo burial and widow guardianship (ter) practices was essential. Odera Oruka described the practices carefully and defended them against misunderstanding and stereotype. He revisited related topics in several delivered papers, published articles, and even interviews and columns in (...) the Kenyan newspapers. The paper will raise the questions: How does Odera Oruka’s role as expert on Luo customs fit in with his sage philosophy project? In his testimony at the trial and subsequent public addresses and published work, does he accomplish two important goals, the first being defending African traditions against prejudice and anti-African bias, and secondly, does he champion reform of traditions when reform is needed? And, can Odera Oruka’s participation in the famous trial avoid seeming ethnic chauvinism and marginalization of women? My conclusion is that he achieves the first goal, but some problems remain in the achievement of the other goals. While he often asserted the need to evaluate traditions and to jettison those that have become unhelpful, in this context he evaluated traditions so strongly that the need for evaluation and possible change was muted. (shrink)

En los últimos años, algunos autores han venido sosteniendo que la validez de la representación arborescente del patrón filético generado por la evolución está siendo menoscabada por el reconocimiento del impacto evolutivo que tendrían la transferencia genética horizontal, la simbiogénesis, la especiación por hibridación y la introgresión. Esa concepción o representación cladogenética de la evolución sólo nos dejaría ver un aspecto parcial de las relaciones de filiación que conectan a los diferentes linajes de seres vivos; ocultando otro aspecto cuya representación (...) más adecuada sería un reticulado de relaciones entre taxones. Con todo, aún sin poner en tela de juicio la frecuencia y la relevancia explicativa de dichos fenómenos, en este trabajo se intentará mostrar que su admisión y reconocimiento no tiene por qué ir en detrimento de esa concepción cladogenética de la evolución cuya relativización se está pregonando. Por el contrario, la comprensión y la representación de tales fenómenos supone dicha concepción. Palabras clave: Filogénesis, Especiación por hibridación, Introgresión, Simbiogénesis, TGH. (shrink)

At the end of the nineteenth century, Ludwig Edinger completed the first comparative survey of the microscopic anatomy of vertebrate brains. He is regarded as the founder of the field of comparative neuroanatomy. Modern commentators have misunderstood him to have espoused an anti-Darwinian linear view of brain evolution, harkening to the metaphysics of the scala naturae. This understanding arises, in part, from an increasingly contested view of nineteenth-century morphology in Germany. Edinger did espouse a progressionist, though not strictly linear, view (...) of forebrain evolution, but his work also provided carefully documented evidence that brain stem structures vary in complexity independently from one another and across species in a manner that is not compatible with linear progress. This led Edinger to reject progressionism for all brain structures other than the forebrain roof, based on reasoning not too dissimilar from those his successors used to dismiss it for the forebrain roof. (shrink)

Nelson and Winter’s An Evolutionary Theory of Economic Change (1982) was the foundational work of what has become the thriving sub-discipline of evolutionary economics. In attempting to develop an alternative to neoclassical economics, the authors looked to borrow basic ideas from biology, in particular a concept of economic “natural selection.” However, the evolutionary models they construct in their seminal work are in many respects quite different from the models of evolutionary biology. There is no reproduction in any usual sense, “mutation” (...) is directed as opposed to blind, and there is no meaningful distinction between phenotype and genotype. Despite these substantial departures from the conceptions of evolutionary biology, I argue that the “evolutionary” economics of Nelson and Winter is indeed a legitimate extension of Darwinian evolutionary principles to a novel domain, and that the traditional conception of evolution by natural selection must be revised. The novel features of evolutionary economics models reflect the distinctive theoretical requirements faced by economists. I further contend that reproduction, heredity, blind variation, and the genotype/phenotype distinction are all inessential to evolutionary theory, and that their role in evolutionary biology is a domain-specific feature of biological theory. (shrink)

Freud claimed that the concept of drive is "at once the most important and the most obscure element of psychological research." It is hard to think of a better proof of Freud's claim than the work of Nietzsche, which provides ample support for the idea that the drive concept is both tremendously important and terribly obscure. Although Nietzsche's accounts of agency and value everywhere appeal to drives, the concept has not been adequately explicated. I remedy this situation by providing an (...) account of drives. I argue that Nietzschean drives are dispositions that generate evaluative orientations, in part by affecting perceptual saliences. In addition, I show that drive psychology has important implications for contemporary accounts of reflective agency. Contemporary philosophers often endorse a claim that has its origins in Locke and Kant: self-conscious agents are capable of reflecting on and thereby achieving a distance from their motives; therefore, these motives do not determine what the agent will do. Nietzsche's drive psychology shows that the inference in the preceding sentence is illegitimate. The drive psychology articulates a way in which motives can determine the agent's action by influencing the course of the agent's reflective deliberations. An agent who reflects on a motive and decides whether to act on it may, all the while, be surreptitiously guided by the very motive upon which he is reflecting. I show how this point complicates traditional models of the role of reflection in agency. (shrink)

An increasing number of scholars argue that moral judgements are adaptations, i.e., that they have been shaped by natural selection. Is this hypothesis true? In this paper I shall not attempt to answer this important question. Rather, I pursue the more modest aim of pointing out three difficulties that anybody who sets out to determine the adaptedness of moral judgments should be aware of (though some so far have not been aware of). First, the hypothesis that moral judgements are adaptations (...) has been advocated in various different specificities and scopes, and on various different levels. Second, the three kinds of evidence that have most often been appealed to by discussants of this hypothesis require additional arguments. And third, there is significant reasonable disagreement about what moral judgements essentially are. (shrink)

In this paper, I argue that what counts as the proper function of a trait is a matter of the de facto perspective that the biological system, itself, possesses on what counts as proper functioning for that trait. Unlike non-perspectival accounts, internal perspectivalism does not succumb to generality problems. But unlike external perspectivalism, internal perspectivalism can provide a fully naturalistic, mind-independent grounding of proper function and natural norms. The attribution of perspectives to biological systems is intended to be neither metaphorical (...) nor anthropomorphic: I do not mean to imply that such systems thereby must possess agency, cognition, intentions, concepts, or mental or psychological states. Instead, such systems provide the grounding for norms of performance when they internally enforce their own standard of (i.e., their own perspective on) what constitutes proper functioning or malfunctioning. By operating with a fixed, determinate level of generality, such systems provide the basis for an account of proper function that is immune to generality problems. (shrink)

There is hardly anything more central to our universe than conservation. Many scientific fields and disciplines view the law of conservation as one of the most fundamental universal laws. The Darwinian model pivots the process of evolution on variability, reproduction, and natural selection. Conservation plays a marginal role in this model and is not really universal, as the model allows exceptions to conservation, i.e. non-conservation, to play an equally important role in evolution. This anomalous role of conservation in the Darwinian (...) model raises questions: What is the reason for this anomaly? Is conservation really universal, as we tend to believe or is it not, as the Darwinian model suggests? This contribution proposes a new model of evolution that focuses on levels of organization, rather than of species, organisms, or populations. It argues that conservation is central to evolution. Not only does this new model restores the universal status of conservation but it also makes possible to resolve some outstanding problems and controversies that continue to plague the Darwinian model. The article tries to advance the broad Darwinian project that seeks to explain the process of evolution as a product of the spontaneous processes in nature. (shrink)

The concept of adaptation is employed in many fields such as biology, psychology, cognitive sciences, robotics, social sciences, even literacy and art,1 and its meaning varies quite evidently according to the particular research context in which it is applied. We expect to find a particularly rich catalogue of meanings within evolutionary biology, where adaptation has held a particularly central role since Darwin’s The Origin of Species (1859) throughout important epistemological shifts and scientific findings that enriched and diversified the concept. Accordingly, (...) a conceptual taxonomy of adaptation in evolutionary biology may help to disambiguate it. Interdisciplinary researches focused on adaptation would benefit from such a result. In the present work we recognize and define seven different meanings of adaptation: (1) individual fitness; (2) adaptation of a population; (3) adaptation as the process of natural selection; (4) adaptive traits; (5) molecular adaptation; (6) adaptation as structural tinkering; (7) plasticity. For convenience here, we refer to them as W-, P-, NS-, T-, M-, S- and PL-ADAPTATION. We present the seven meanings in some detail, hinting at their respective origins and conceptual developments in the history of evolutionary thought (references are offered for further deepening). However, it is important to point out that evolution researchers seldom if ever refer to a single meaning purified from the others. This applies also to the authors we cite as representatives of one of the seven meanings. In Discussion and Conclusion draw from our work some future perspectives for adaptation within evolutionary biology. (shrink)

Genes are often described by biologists using metaphors derived from computa- tional science: they are thought of as carriers of information, as being the equivalent of ‘‘blueprints’’ for the construction of organisms. Likewise, cells are often characterized as ‘‘factories’’ and organisms themselves become analogous to machines. Accordingly, when the human genome project was initially announced, the promise was that we would soon know how a human being is made, just as we know how to make airplanes and buildings. Impor- tantly, (...) modern proponents of Intelligent Design, the latest version of creationism, have exploited biologists’ use of the language of information and blueprints to make their spurious case, based on pseudoscientific concepts such as ‘‘irreducible complexity’’ and on flawed analogies between living cells and mechanical factories. However, the living organ- ism = machine analogy was criticized already by David Hume in his Dialogues Concerning Natural Religion. In line with Hume’s criticism, over the past several years a more nuanced and accurate understanding of what genes are and how they operate has emerged, ironically in part from the work of computational scientists who take biology, and in particular developmental biology, more seriously than some biologists seem to do. In this article we connect Hume’s original criticism of the living organism = machine analogy with the modern ID movement, and illustrate how the use of misleading and outdated metaphors in science can play into the hands of pseudoscientists. Thus, we argue that dropping the blueprint and similar metaphors will improve both the science of biology and its understanding by the general public. (shrink)

ABSTRACT ‘Modus Darwin’ is the name given by Elliott Sober to a form of argument that he attributes to Darwin in the Origin of Species, and to subsequent evolutionary biologists who have reasoned in the same way. In short, the argument form goes: similarity, ergo common ancestry. In this article, I review and critique Sober’s analysis of Darwin’s reasoning. I argue that modus Darwin has serious limitations that make the argument form unsuitable for supporting Darwin’s conclusions, and that Darwin did (...) not reason in this way. (shrink)

I argue that Darwinian evolutionary theory has a rhetorical dimension and that rhetorical criticism plays a role in how evolutionary science acquires knowledge. I define what I mean by rhetoric by considering Darwin’s Origin. I use the Modern Evolutionary Synthesis to show how rhetoric conceived as situated and addressed argumentation enters into evolutionary theorizing. Finally, I argue that rhetorical criticism helps judge the success, limits, and failures of these theories.

We propose a framework for analyzing the development, operation and failure to survive of all things, living, non-living or organized groupings. This framework is a sequence of developments that improve survival capability. Framework processes range from origination of any entity/system, to the development of increased survival capability and development of life-forms and organizations that use intelligence. This work deals with a series of developmental changes that arise from the uncovering of emergent properties. The framework is intended to be general, but (...) we see a potential to apply it to scientific topics such as the exploration of the origin of life or the search for life beyond Earth, and to understand some biological issues in evolution and symbiosis, and also to apply to social systems that do not seem to be operating well, to determine their problems and correct them. (shrink)

Evolutionary Psychology as Maladapted Psychology ROBERT C. RICHARDSON Cambridge, MA: MIT Press, 2007 248 pages, ISBN: 0-262-18260-2 (hbk); $30.00 “Just about anything is consistent with some evolut...

Conventional wisdom teaches that Thomas Huxley discredited Richard Owen in their debate over ape and human brains. This paper reexamines the dispute and uses it as a test case for evaluating the metaphysical realist, internal realist, and social constructivist theories of scientific knowledge. Since Owen worked in the Kantian tradition, his anatomical research illustrates the implications of internal realism for scientific practice. As an avowed Cartesian, Huxley offered a well developed attack on Owen''s position from a metaphysical realist perspective. Adrian (...) Desmond''s political retrospective on the dispute affords the additional opportunity to contrast internal realism with social constructivism. I argue that since Huxley ultimately based his attack on his valuing Europeans as superior to blacks, his argument illustrates the hazards of accepting the metaphysical realist promise of value free science. Desmond overlooks this racial dimension of the dispute, and his work shows how social constructivism can distract the historian and philosopher from even the social meaning of science. As internal realists like Putnam have argued, values enter science not from without, but from within the very process of science itself. (shrink)

Euan Macphail’s work and ideas captured a pivotal time in the late 20th century when behavioral laws were considered to apply equally across vertebrates, implying equal intelligence, but it was also a time when behaviorism was challenged by the view that language was unique to humans, and bestowed a superior mental status. Subsequent work suggests greater continuity between humans and their forebears, challenging the Chomskyan assumption that language evolved in a single step {“the great leap forward”) in humans. Language is (...) now understood to be based on an amalgam of cognitive functions, including mental time travel, theory of mind, and what may be more broadly defined as imagination. These functions probably evolved gradually in hominin evolution and are present in varying degrees in nonhuman species. The blending of language into cognition provides both for interspecies differences in mental function, and continuity between humans and other species. What does seem to be special to humans is the ability to communicate the contents of imagination, although even this is not absolute, and is perhaps less adaptive than we like to think. (shrink)

Our target article argued that a genetically specified Universal Grammar (UG), capturing arbitrary properties of languages, is not tenable on evolutionary grounds, and that the close fit between language and language learners arises because language is shaped by the brain, rather than the reverse. Few commentaries defend a genetically specified UG. Some commentators argue that we underestimate the importance of processes of cultural transmission; some propose additional cognitive and brain mechanisms that may constrain language and perhaps differentiate humans from nonhuman (...) primates; and others argue that we overstate or understate the case against co-evolution of language genes. In engaging with these issues, we suggest that a new synthesis concerning the relationship between brains, genes, and language may be emerging. (shrink)

Several features of the yeast mitochondrial genome, including high mutation rate, dynamic genomic structure, small effective population size, and dispensability for cellular viability, make it a promising candidate for generating hybrid incompatibility and driving speciation. Cytonuclear incompatibility, a specific type of Dobzhansky‐Muller genetic incompatibility caused by improper interactions between mitochondrial and nuclear genomes, has previously been observed in a variety of organisms, yet its role in speciation remains obscure. Recent studies in Saccharomyces yeast species provide a new insight, with experimental (...) evidence that cytonuclear incompatibility and DNA sequence divergence are both causes of the reproductive isolation of different yeast species. Interestingly, these two mechanisms seem to be perfectly complementary to each other in terms of their effects and evolutionary trajectories. Direct molecular analyses of the incompatible genes in yeasts have started to shed light on the evolutionary forces driving speciation. Editor's suggested further reading in BioEssaysThe cytoplasmic structure hypothesis for ribosome assembly, vertical inheritance, and phylogeny AbstractMitochondrial bioenergetics as a major motive force of speciation Abstract. (shrink)

Biolinguistic inquiry investigates the human language faculty as an internal biological property. This article traces the development of biolinguistics from its early philosophical origins through its reformulation during the cognitive revolution of the 1950s and outlines my views on where the biolinguistic enterprise stands today. The growth of language in the individual, it is suggested, depends on (i) genetic factors, (ii) experience, and (iii) principles that are not specific to the faculty of language. The best current explanation of how language (...) is recursively generated is through Merge, an operation that takes objects already constructed, and reconstructs a new object from them, generating a 'language of thought', perhaps in a manner close to optimal (relying on principles of category (iii)), with externalization (hence communication) a secondary process. The concluding section of the article offers several objectives for future research in the field. (shrink)

Jakob von Uexküll’s problematic is manifested in his paradoxical portraiture of form within the plan of nature: the one a sensual schema and the other a transsensual ideal form. At first sight, Uexküll’s belief in the Platonic and the Reformational notions of the immobile becoming of form seems to be a resignation from the heated debates among his contemporary materialists, vitalists, dynamists, and evolutionists. However, in terms of the Kantian subjective teleology, Uexküll’s appropriation of the ancient philosophy reinstates the invisible, (...) static, but repetitive cycle as his regulating principle in the observation of the activity of animals. This regulating principle distinguishes itself from the rule of resemblance established by the appearances and fossil remains of animals, which is linear, incomplete, and digressive. In the light of Michel Foucault, the transition from the visible to the invisible recoups the study of nature from the living beings (les êtres vivants) to the life itself (la vie), from natural philosophy to biology. My study suggests that we recast Uexküll’s sign theory from his observations on the crux that models and triggers an animal to action in its Umwelt. Bracketing Uexküll’s transcendental configuration of form and image, we still find that schema, in itssensual and functional context, evolves from a reflection of the objects to a summary of their features plus an ignorance of their proper names. Uexküll's erasure of proper names (in different languages) that directs our attention to the presentation in its pure form (Gestalt) not only constitutes an important step in epistemology, but also in a life science that meticulously delves into the genotypes. (shrink)

The Darwinian revolution supposed and imposed a much broader and more complex concept of environment than that which, until that moment, had been considered by most as part of natural history. Until Darwin, the environment of living beings had been regarded, almost exclusively, as the inanimate surroundings. This pre-Darwinian notion of environment included physicochemical and climatic variables: the living beings themselves were scarcely considered, or they were regarded just as food to be assimilated. In contrast, with Darwin, the influence of (...) living surroundings began to be regarded as having decisive importance for understanding the distribution, configuration, and viability of living beings. The relationships established among different living beings became the main and more significant features of the biological environment. This conceptual change was an exigency derived from the formulation and justification of the theory of natural selection. The idea of struggle for existence supposed by that theory requires that the biotic environment be considered critical in determining the viability of each living being. (shrink)

The main cognitive target of Ecology is the functional analysis of the ecological processes and systems. It does not suppose, meanwhile, that these processes and systems are designed systems and processes like individual leaving beings. The Ecology, likewise Physiology, is constitutively guided by the presupposition of a privileged state , to be explained, that it is the persistence of the systems and processes that she studied; and its functional analyses obey to this presupposition. Ecology supposes an ideal of natural order (...) , under which consideration this privileged state is thinking as an improbable state of things and, for that, needed of explanation; and, in what concerns this latter point, the analogy between Ecology and Physiology can also result instructive. DOI:10.5007/1808-1711.2010v14n3p349. (shrink)

http://dx.doi.org/10.5007/1808-1711.2012v16n1p53 Ratifying Haeckel and contradicting Kant’s negative prophesy, in this paper I try to show that Darwin was, really, the Newton of the blade of grass . Darwin showed how the configurations according to goals of the living beings, could be explained from a naturalistic point of view, without having to postulate the existence of an intentional agent that had arranged or prearranged then. This achievement, nevertheless, was obtained by a way that Kant could not foresee and that Haeckel could (...) not understand: Darwin came there showing that there was more natural science than that Newton, Kant and Haeckel could conceive. (shrink)

El arquetipo vertebrado delineado por Richard Owen a mediados del Siglo XIX fue un modelo concebido para pautar el análisis morfológico de los seres vivos dentro de los lineamientos definidos por la idea de una unidad de composición cuando ella se aplicaba al caso específico de los vertebrados. Pero aquí, además de analizar la razón de ser originaria de ese arquetipo y su modo de operar dentro del contexto epistémico en el que efectivamente surgió, también aludiremos al modo en que (...) ese modelo pudo pasar a ser considerado, no ya como una idealización, o una abstracción metodológicamente operativa, sino como una aproximación a una entidad real que debía ser individualizada y debidamente descripta. (shrink)

This essay examines the relation of Darwin's orchids book to a central persuasive flaw in theOrigin: Its inability to give variation sufficient “presence” to break the hold of “design” in the mind of the reader. Darwin characterized the orchids book as “a flank movement on the enemy”; this essay identifies the “enemy” as Paley's natural theology and the “flank” as thetopoi, maxims, and habits of perception that led Darwin's colleagues and contemporaries to see design in nature. Moreover, this essay examines (...) three aspects of rhetorical timing pertinent toOrchids - time askairos, time as adequate duration, and time as transformation - and then relates those features to Robert Cox's Heideggerian logic of repetition, disavowal, and transcendence. The essay concludes with implications of the tactical and temporal aspects of Darwin's reasoning for understanding both the logic of science and of Darwin as a rhetorical artist. (shrink)

By formulating in 1875 his major theoretical achievement, the “principle of succession of functions”, Dohrn was consciously entering the controversy between Darwin and Mivart. Dohrn’s principle enjoyed the approval of Darwin, but not his enthusiasm. The paper examines the evolution of Darwin’s original idea of ‘conversion of functions’ in the 6th edition of his Origin, following Mivart’s criticism, and contrasts the overtly functionalist interpretation entailed in Dohrn’s formulation with Darwin’s increasing structuralist hesitations as to the origin of evolutionary novelty. A (...) more accurate analysis of Dohrn’s principle, however, appears to corroborate the thesis that Dohrn was equally receptive to Darwin’s argument as to Mivart’s criticism. (shrink)

In this paper, I critically evaluate several related, provocative claims made by proponents of data-intensive science and “Big Data” which bear on scientific methodology, especially the claim that scientists will soon no longer have any use for familiar concepts like causation and explanation. After introducing the issue, in Section 2, I elaborate on the alleged changes to scientific method that feature prominently in discussions of Big Data. In Section 3, I argue that these methodological claims are in tension with a (...) prominent account of scientific method, often called “Inference to the Best Explanation”. Later on, in Section 3, I consider an argument against IBE that will be congenial to proponents of Big Data, namely, the argument due to Roche and Sober Analysis, 73:659–668, that “explanatoriness is evidentially irrelevant.” This argument is based on Bayesianism, one of the most prominent general accounts of theory-confirmation. In Section 4, I consider some extant responses to this argument, especially that of Climenhaga Philosophy of Science, 84:359–368,. In Section 5, I argue that Roche and Sober’s argument does not show that explanatory reasoning is dispensable. In Section 6, I argue that there is good reason to think explanatory reasoning will continue to prove indispensable in scientific practice. Drawing on Cicero’s oft-neglected De Divinatione, I formulate what I call the “Ciceronian Causal-nomological Requirement”, which states, roughly, that causal-nomological knowledge is essential for relying on correlations in predictive inference. I defend a version of the CCR by appealing to the challenge of “spurious correlations,” chance correlations which we should not rely upon for predictive inference. In Section 7, I offer some concluding remarks. (shrink)

In this paper, I consider the relationship between Inference to the Best Explanation and Bayesianism, both of which are well-known accounts of the nature of scientific inference. In Sect. 2, I give a brief overview of Bayesianism and IBE. In Sect. 3, I argue that IBE in its most prominently defended forms is difficult to reconcile with Bayesianism because not all of the items that feature on popular lists of “explanatory virtues”—by means of which IBE ranks competing explanations—have confirmational import. (...) Rather, some of the items that feature on these lists are “informational virtues”—properties that do not make a hypothesis \ more probable than some competitor \ given evidence E, but that, roughly-speaking, give that hypothesis greater informative content. In Sect. 4, I consider as a response to my argument a recent version of compatibilism which argues that IBE can provide further normative constraints on the objectively correct probability function. I argue that this response does not succeed, owing to the difficulty of defending with any generality such further normative constraints. Lastly, in Sect. 5, I propose that IBE should be regarded, not as a theory of scientific inference, but rather as a theory of when we ought to “accept” H, where the acceptability of H is fixed by the goals of science and concerns whether H is worthy of commitment as research program. In this way, IBE and Bayesianism, as I will show, can be made compatible, and thus the Bayesian and the proponent of IBE can be friends. (shrink)

Quinn offered seven definitions of “cladist” and discussed the context in which they are used in relation to historical and current debates in systematics. As a member of her study taxon, I offer some contextual color commentary, clarifications on the views of “pattern cladists” regarding monophyly, ancestors, synapomorphy and other concepts, a definition of “syncretist”, and some thoughts on cladistics and philosophy in the twenty first century.