This paper introduces a special issue of Cognitive Science initiated on the 25th anniversary of the publication of Parallel Distributed Processing (PDP), a two-volume work that introduced the use of neural network models as vehicles for understanding cognition. The collection surveys the core commitments of the PDP framework, the key issues the framework has addressed, and the debates the framework has spawned, and presents viewpoints on the current status of these issues. The articles focus on both historical roots and contemporary (...) developments in learning, optimality theory, perception, memory, language, conceptual knowledge, cognitive control, and consciousness. Here we consider the approach more generally, reviewing the original motivations, the resulting framework, and the central tenets of the underlying theory. We then evaluate the impact of PDP both on the field at large and within specific subdomains of cognitive science and consider the current role of PDP models within the broader landscape of contemporary theoretical frameworks in cognitive science. Looking to the future, we consider the implications for cognitive science of the recent success of machine learning systems called “deep networks”—systems that build on key ideas presented in the PDP volumes. (shrink)

In this prcis we focus on phenomena central to the reaction against similarity-based theories that arose in the 1980s and that subsequently motivated the approach to semantic knowledge. Specifically, we consider (1) how concepts differentiate in early development, (2) why some groupings of items seem to form or coherent categories while others do not, (3) why different properties seem central or important to different concepts, (4) why children and adults sometimes attest to beliefs that seem to contradict their direct experience, (...) (5) how concepts reorganize between the ages of 4 and 10, and (6) the relationship between causal knowledge and semantic knowledge. The explanations our theory offers for these phenomena are illustrated with reference to a simple feed-forward connectionist model. The relationships between this simple model, the broader theory, and more general issues in cognitive science are discussed. (shrink)

We argue that formal analogical reasoning is not a uniquely human trait but is found in chimpanzees, if not in monkeys. We also contest the claim that the relational matching-to-sample task is not exemplary of analogical behavior, and we provide evidence that symbolic-like treatment of relational information can be found in nonhuman species, a point in contention with the relational reinterpretation hypothesis.

The commentaries reflect three core themes that pertain not just to our theory, but to the enterprise of connectionist modeling more generally. The first concerns the relationship between a cognitive theory and an implemented computer model. Specifically, how does one determine, when a model departs from the theory it exemplifies, whether the departure is a useful simplification or a critical flaw? We argue that the answer to this question depends partially upon the model's intended function, and we suggest that connectionist (...) models have important functions beyond the commonly accepted goals of fitting data and making predictions. The second theme concerns perceived in-principle limitations of the connectionist approach to cognition, and the specific concerns these perceived limitations raise for our theory. We argue that the approach is not in fact limited in the ways our critics suggest. One common misconception, that connectionist models cannot address abstract or relational structure, is corrected through new simulations showing directly that such structure can be captured. The third theme concerns the relationship between parallel distributed processing (PDP) models and structured probabilistic approaches. In this case we argue that there the difference between the approaches is not merely one of levels. Our PDP approach differs from structured statistical approaches at all of Marr's levels, including the characterization of the goals of cognitive computations, and of the representations and algorithms used. (shrink)

We distinguish between literal and metaphorical applications of Bayesian models. When intended literally, an isomorphism exists between the elements of representation assumed by the rational analysis and the mechanism that implements the computation. Thus, observation of the implementation can externally validate assumptions underlying the rational analysis. In other applications, no such isomorphism exists, so it is not clear how the assumptions that allow a Bayesian model to fit data can be independently validated.

The 1992 Convention on Biological Diversity (CBD) and its 2010 Nagoya Protocol brought about a breakthrough in global policy making. They combined a concern for the environment with a commitment to resolving longstanding human injustices regarding access to, and use of biological resources. In particular, the traditional knowledge of indigenous communities was no longer going to be exploited without fair benefit sharing. Yet, for 25 years after the adoption of the CBD, there were no major benefit sharing agreements that led (...) to significant funding streams for indigenous communities. This changed with the signing of the Rooibos Benefit Sharing Agreement in South Africa, described in this paper. As the authors report, the Rooibos Agreement is a superlative in two respects. It is the biggest benefit sharing agreement between industry and indigenous peoples to date. It is also the first industry-wide agreement to be formed in accordance with biodiversity legislation. This article is a co-production between traditional knowledge holders, the lawyer who represented their interests, the Co-Chair of the Nagoya Protocol negotiations, and an ethicist who analyzed the major challenges of this historic agreement. With no precedent in the benefit sharing world, the agreement stands as a concrete example of the ‘art of the possible.’ Although the rooibos case is unique in a number of aspects, the experience offers many transferable insights, including: patience; incrementalism; honesty; trust; genuine dialogue; strong legal support; a shared recognition that a fair, win-win deal is possible; government leadership; and unity amongst indigenous peoples. Such ingredients of success can apply well beyond southern Africa. (shrink)

Three experiments with 88 college-aged participants explored how unlabeled experiences—learning episodes in which people encounter objects without information about their category membership—influence beliefs about category structure. Participants performed a simple one-dimensional categorization task in a brief supervised learning phase, then made a large number of unsupervised categorization decisions about new items. In all three experiments, the unsupervised experience altered participants’ implicit and explicit mental category boundaries, their explicit beliefs about the most representative members of each category, and even their memory (...) for the items encountered during the supervised learning phase. These changes were influenced by both the range and frequency distribution of the unlabeled stimuli: mental category boundaries shifted toward the middle of the range and toward the trough of the bimodal distribution of unlabeled items, whereas beliefs about the most representative category members shifted toward the modes of the unlabeled distribution. One consequence of this shift in representations is a false-consensus effect (Experiment 3) where participants, despite receiving very disparate training experiences, show strong agreement in judgments about representativeness and boundary location following unsupervised category judgments. (shrink)

Most empirical work in human categorization has studied learning in either fully supervised or fully unsupervised scenarios. Most real-world learning scenarios, however, are semi-supervised: Learners receive a great deal of unlabeled information from the world, coupled with occasional experiences in which items are directly labeled by a knowledgeable source. A large body of work in machine learning has investigated how learning can exploit both labeled and unlabeled data provided to a learner. Using equivalences between models found in human categorization and (...) machine learning research, we explain how these semi-supervised techniques can be applied to human learning. A series of experiments are described which show that semi-supervised learning models prove useful for explaining human behavior when exposed to both labeled and unlabeled data. We then discuss some machine learning models that do not have familiar human categorization counterparts. Finally, we discuss some challenges yet to be addressed in the use of semi-supervised models for modeling human categorization. (shrink)

The aim of this paper is to investigate how alternative land ethics of agricultural stakeholders may help explain recent land use changes. The paper first explores the historical development of the land ethic concept in the United States and how those ethics have impacted land use policy and use of private lands. Secondly, primary data gathered from semi-structured interviews of farmers, ranchers, and influential stakeholders are then analyzed using stakeholder analysis methods to identify major factors considered in land use decisions, (...) priorities of factors of each group, and to define relevant mental models describing each group’s view of the land ethic concept. Results show that these stakeholder groups prioritize land use factors qualitatively differently and possess strikingly different land ethics. It is concluded that shifts in stakeholder land ethics have contributed to recent land use changes. Lastly, we discuss how current agricultural policy sends mixed signals about preferred land use and the potential ramifications based on the different land ethics we’ve described. (shrink)

Darwinian Evolution and Classical Liberalism brings together a collection of new essays that examine the multifaceted ferment between Darwinian biology and classical liberalism.

In lieu of an abstract, here is a brief excerpt of the content:I am delighted to have the opportunity to speak on a topic that is of interest to all of us, inasmuch as it pertains to our summer endeavor, Franciscan education. I will do so, however, from the perspective of Roger Bacon – the Doctor Mirabilis – a friar who held his Order's education system in contempt. His scathing attacks included equally strong words for the Augustinians, Carmelites and (...) Dominicans, whom he lumped together with the Franciscans and dismissed as the ordines puerorum. Although he was a Franciscan, let me assure you that Bacon did not intend the "order of young boys" to be an endearing description of his confreres – but more about this later.Bacon's sharpest attacks are found in his Compendium studii philosophiae, written around 1271-1272. For those of you who are not familiar with this English friar, let me sketch out his biography. In all seriousness, what we know of his provenance, education, and career is indeed sketchy. Depending on how we read selected autobiographical remarks, he was born around 1214 or 1220 and died around 1292. After studying in Oxford, he became one of the first masters to comment on Aristotle in the Faculty of Arts in Paris during the 1240s and subsequently returned to England. Whether it was there, or perhaps later in France that he entered the Minorite Order is uncertain, nevertheless we find him in the Franciscan habit in 1256 and living in Paris. It will be from the vantage point of Paris that Brother Bacon will argue for radical curricular reform and critique the prevailing mendicant educational system. Later, perhaps back in England after 1268, he continues his criticism until his death in 1292.As I begin, allow me a few moments to explain why I think Bacon's critique should not be ignored by Franciscans nor relegated to an obscure footnote by educators. To offer a critique of a position, belief, or view is something that is to be expected from those in colleges and universities who have been educated in what we call "critical thinking." However, as Michael Roth noted in The Chronicle of Higher Education, to critique is the beginning, not the end or goal of the process. His article, entitled "Beyond Critical Thinking," warns educators that many of our best students are considered intelligent because of their sharply-honed, acquired ability to take apart, unmask, or deconstruct the beliefs of others. Experts at exorcizing and banishing meaning from firmly held texts, they are likewise unable to find or construct meaning in their own lives from these sources which have inspired, formed, and challenged countless individuals through the centuries.Let me offer you an example from my own experience at Flagler College. I have taught everything from Introduction to the Old Testament to upper-level Contemporary Theological Thought. Over the years I have seen that taking a critical approach to the material is crucial, yet there is a corresponding need to assist students along the path toward wisdom through the integration of our academic critique within a coherent worldview. For any number of reasons it is an exhilarating, empowering, and I would say, even a liberating experience for some to learn that the Scriptures are problematic, and thereby open to various interpretations. This opens the door for some to challenge the authority their parents and pastors have wielded over them, while emboldening other students to challenge and even embarrass peers. For example, one of my students discovered that the King James Bible contained John 5:4 which many modern translations eliminated since scholars hold that it was something similar to a gloss. He subsequently challenged others by questioning how they could believe that God had an eternal claim on anyone when scholars were not even sure what parts of the Bible were legitimate, or even true. His proof text in these discussions.. (shrink)

Thomas S. Maloney has once again provided an engaging and carefully edited translation and critical edition of a major text of Roger Bacon. Scholars of Bacon already enjoy Maloney's other edited translations, On Signs and The Art and Science of Logic, as well as the critical edition of the Compendium of the Study of Theology. Maloney turns his attention in this new volume to the English Minorite's Compendium studii philosophiae and, in addition to his commentary and translation, provides a (...) critical edition of the Latin text based on the singular manuscript in existence in the British Museum.For those unfamiliar with the Compendium, it is important... (shrink)

The twenty-six works contained in this collection comprise some of the best and best-known scholars on the thought of Thomas Aquinas. Readers will find here helpful insights into St. Thomas's adjudication of various streams in the philosophical and theological traditions. Most pertinent for readers today is the way in which Aquinas integrates faith and reason, resulting in mutual benefit. Contributors include Roger Pouivet, Michael Sherwin, o.p., Anthony Lisska, Mario Enrique Sacchi, Ralph McInerny, Alice Ramos, John Hittinger, Leo Elders, and (...) many others. (shrink)

According to Roger Poole, theological interpreters of Søren Kierkegaard’s indirect communication privilege content over form, whereas deconstructive interpreters privilege form over content. Here, I offer a reading of Johannes Climacus’s Philosophical Fragments to illustrate how, in this case, the theology/deconstruction and form/content binaries both break down. The form of Fragments is as theological as it is deconstructive: Climacus’s kaleidoscopic quotation of scripture, and his parabolic tropes both attest to this. Similarly, the content of Fragments is as deconstructive as it (...) is theological: the deferral of names, the madness of the moment of decision, and Climacus’s use of contradiction all unsettle any naïve theology. Ultimately, I suggest, the reason that Fragments resists the form/content and theology/deconstruction binaries is because it is a text about the incarnation – a paradigmatic combination of form and content, and a paradoxical reality that bursts apart any division between theology and deconstruction. (shrink)

This essay advances an interpretation of early Christian codex books, which goes beyond Catherine Pickstock’s critique of Jacques Derrida. Firstly, it summarizes Derrida’s deconstruction of Plato’s Phaedrus and introduces his understanding of writing as différance. Secondly, it outlines Pickstock’s After Writing in order to understand her emphasis upon the liturgical nature of platonic dialogue. It is here that an ambiguity emerges between writing and codex books in Pickstock’s account. In response, the insights of book historians such as Roger Chartier (...) will be brought to bear in order to understand the longer history of the codex, which sees the printing press as a continuation of the early transition from roll to codex in the second century of the Common Era. It has long been noted that Christians of this period were early and pervasive adopters of codex binding for their sacred literature. By summarizing the reasons why, it will be shown how the codex expressed early Christian religious concerns. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:IntroductionWhen I first came across Dieter Hattrup's analysis of the De reductione I noted that the professor from Paderborn was trying, step by step, to trace the authorship back to friars influenced by Roger Bacon – a reductio ad Baconem, if you will. Hattrup's argument that Roger Bacon was indirectly involved in the composition of the De reductione evoked the fleeting memory of a pop culture game (...) created by American college students in the 1990s called the "Six Degrees of Kevin Bacon," whereby the characters in any given film must be linked to a film with the Hollywood actor, Kevin Bacon, by comparing no more than six films. To mention the esteemed theologian in such a fleeting cultural context is not meant to trivialize his argument in any way; rather, the intent is to underscore, admittedly tongue in cheek, the intricacies of his argument against Bonaventurian authorship of the De reductione as outlined in the monograph Ekstatik der Geschichte: Die Entwicklung der christologischen Erkenntnistheorie Bonaventuras and the journal article, "Bonaventura zwischen Mystik und Mystifikation: Wer ist der Autor von De reductione?" While Hattrup hesitates to claim Bacon as the author of De reductione, he does develop a systematic study that eventually leads, step by step, association by association, back to Roger Bacon. This essay examines and disputes Hattrup's claim by analyzing the historical context of his argument, the chronology and sources in question, the theme of the fourfold light and scripture, and the relationship between the sciences and theology. The numerous questions raised will underscore the fragility of his argument. Subsequent essays will treat the contemporary theological implications as well as the literary-theological genre and academic occasion of Bonaventure's De reductione.Historical ContextBefore we examine Hattrup's argument against Bonaventure as the author of the De reductione, let us first evoke the historical situation he suggests as the possible origin of the text. In 1267, Bonaventure warns his Minorite confreres of the dangers inherent in the sciences in the Collations on the Ten Commandments, and then, once again in 1268 in the Collations on Gifts of the Holy Spirit. The brothers in Bacon's circle are concerned because they contend that the sciences must be cultivated and consequently compose the De reductione. Their intent is to demonstrate how the sciences are integral to theology, such that even natural philosophy contains the wisdom of God. Hattrup sees this text stemming from Bacon's circle as a conscious attempt to subvert Bonaventure's understanding of the relationship between faith and reason in favor of the sciences by utilizing some of the General Minister's own language as mirrored in the Journey of the Soul into God and Francis of Assisi's experience of God in the natural world. The resulting text of the De reductione, according to Hattrup, is an intentional mystification of Bonaventure's own mystical or ecstatic methodology.Hattrup suggests that the De reductione came to Bonaventure's attention in 1270, but he is preoccupied with affairs in the early 1270s and only returns later to address the dangers he recognizes in the De reductione in another collation series in May of 1273, the Collations on the Six Days, or Hexaëmeron. The General Minister warns of those who entered religious life as friends of the sciences, the "hospites scientiae." They must place limits on their efforts in these fields of inquiry and not promote them as essential to theological reflection, as posited by the De reductione, if they wish to remain faithful to the ascetical-mystical vision of the Minorite Order. Unable to finish the Hexaëmeron due to ecclesial obligations, Bonaventure died unexpectedly in July of 1274 at the Council of Lyon. The text of the De reductione, found among Bonaventure's other writings, was dutifully copied and included among the Seraphic Doctor's literary corpus since at first glance this kurze Denkschrift appears to be from the deceased General Minister.Hattrup readily admits that.. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:LaudatioTimothy B. Noone (bio)On Sunday, July 26, 2009, the Franciscan Institute was pleased to award to Dr. Girard J. Etzkorn its 22nd Franciscan Institute Medal in recognition of a lifetime of scholarship, editing and publication of texts on medieval philosophy and theology, with a special emphasis on the Franciscan intellectual tradition. The ceremony was held in the Trustees Room of Doyle Hall on the campus of St. Bonaventure University (...) and attended by over 100 scholars, students, friends and members of Dr. Etzkorn's extended families. The award ceremony began with a personal appreciation by Dr. Thomas Shannon, Ph.D., emeritus of the Worcester Polytechnic Institute (Worcester, MA), former member during the 1960s with Dr. Etzkorn of the Sacred Heart Province of Friars Minor (St. Louis, MO). It was followed by the formal laudatio of the honorée presented by former colleague and friend, Dr. Timothy B. Noone, Ph.D., of the Catholic University of America, the text of which is printed here. The event concluded with personal remarks by Dr. Etzkorn on his life as a scholar of the Franciscan tradition."Let us praise men of renown and our fathers in their generation." Sirach 44:1The wisdom of Sirach, the last of the Solomonic books of the Old Testament, would seem an appropriate place to begin this evening's festivities. No doubt, Gerry is squirming a bit in his chair, thinking in his customary humility that the words of Sirach are a bit too high for him. But we must learn to acknowledge what is true and great wherever it is, even when (or to put the matter correctly, especially when) the truth and greatness are found in ourselves. So there will be [End Page 259] no holding back on the present occasion, since the text from Sirach points out our path.We should start with a brief sketch of Gerry's life. Born in Kirkwood, Missouri in 1927, Gerry received his primary and secondary education in Missouri before attending the University of Dayton in the fall of 1944. After three semesters studying chemical engineering, he was drafted into the military, serving in the U.S. Army as part of the occupation forces of Japan after the surrender of August, 1945. This seeming irrelevancy actually became quite important in Gerry's life, for it was during his service in Japan that he encountered the Franciscans and decided to enter the Order after returning to the U.S. Once he had completed his degrees in philosophy and theology and been ordained, Gerry was sent to the University of Louvain, where he took his doctorate, producing a thesis that contained a partial edition of Roger Marston's hitherto unpublished Quodlibetal questions.This work at Louvain presaged in many ways the bulk of Gerry's work: he edited and studied a Franciscan medieval text from Latin manuscripts and studied its philosophical and theological doctrines. After returning from Louvain, Gerry taught for ten years at Quincy College and Seminary before leaving the Franciscans in 1971. But the Franciscans and he were far from being through with each other. Within two years Gerry arrived here to work with Fr. Gedeon Gàl on the Ockham Edition, then in the throes of its labors. Initially working as an Associate Editor on the Ockham Edition, Gerry eventually became Chief Editor of the Scotus Project, the successor project at the Institute to the Ockham Edition.During his twenty-two years at the Institute, Gerry kept up a steady pace of editions, some connected with the Institute's research projects and others springing from his own interests. Among the former, we must note three volumes of the Opera theologica of Ockham and four volumes of the Opera philosophica of Scotus; among the latter, we find the complete edition of Roger Marston's Quodlibetal questions, the edition of John Peckham's Quodlibetal questions, numerous articles containing briefer editions of lesser figures, and a volume of manuscript descriptions, analyzing manuscripts never before described in the Vatican Library. [End Page 260]What I have mentioned so far would be enough for any one human being within the scope of one lifetime. But God had more in store for Gerry... (shrink)

Roberto Esposito, Bíos: Biopolitics and Philosophy, with an intro. and trans. Timothy Campbell. Minneapolis: University of Minnesota Press, 2008; Nikolas Rose, The Politics of Life Itself: Biomedicine, Power, and Subjectivity in the Twenty-first Century. Princeton, NJ: Princeton University Press, 2007.

One of the goals of examining Hegel's aesthetics, Stephen Bungay points out in his admirably lucid introduction to this topic, is to redeem aesthetics from what Roger Scruton has deemed its "continuing intellectual disaster." For Bungay, what is so compelling about Hegel's aesthetics in this regard is its attempt "to give the determination of beauty and of art in speculative terms," thereby restoring a concern for the philosophical in art, without diminishing the immediacy or "determinateness" of particular arts and (...) artworks. The result: a panoramic depiction of art history as the self-realization of "the concept of art." It is to Bungay's credit that he does not reduce what is problematic in Hegel's project in order to reveal what is provocative. (shrink)

In this, the second edition of his classic study, Albert Zimmermann has once again provided scholars with a remarkable collection of otherwise unavailable texts along with penetrating studies on that perennial metaphysical question: what is the subject of metaphysics. As indicated by the title, Zimmermann’s treatment of the medieval discussion on the object of metaphysical knowledge ranges over the thirteenth and fourteenth centuries, covering authors from the generation of Richard Rufus and Roger Bacon up to John Buridan. The new (...) edition takes account of most of the considerable literature that has appeared since the original publication in 1965. Inaugurating the Bibliotheca series being edited under the direction of the illustrious review Recherches de théologie et philosophie médiévales, this volume sets an exceptionally high standard for remaining volumes in the series, which appears likely to produce studies of enduring significance for the study of medieval philosophy. (shrink)

In this remarkably ambitious book, Robert Pasnau has sought to trace out the story of medieval epistemology during its formative years, 1250 to 1350, and to draw conclusions both regarding the tenability of views advanced during the High Middle Ages and regarding the relation of medieval epistemology to early modern epistemology. In the history of cognitive theories, Pasnau discusses mainly the figures of Thomas Aquinas, Henry of Ghent, Peter John Olivi, and William of Ockham, although brief treatments are also included (...) of Roger Bacon and William Crathorn. The conclusions that Pasnau draws are that none of the epistemological theories advanced by the principal authors treated is altogether satisfactory and that medieval epistemology provides a direct antecedent to early modern epistemology since, on Pasnau’s reading, even the cognitive theory of a figure such as Aquinas relies on a kind of representationalism. (shrink)

In this paper I explore the connection between narrative ethics and the increasing emphasis on historical consciousness as a way to cultivate moral responsibility in history education. I use Timothy Findley’s World War I novel, The Wars, as an example of how teachers might help students to see history neither simply as a collection of artefacts from the past, nor as an effort to construct an objective view about what went on in those other times and places, but rather (...) as something that makes ethical demands on us here and now. Theoretically, this paper draws on Adam Zachary Newton’s conception of narrative ethics and Roger Simon’s conception of historical consciousness, both of which rest on the Levinasian themes of irreducible difference, the face, and subjectivity as a position of ethical responsibility to and for the other. (shrink)

L'effritement du modèle rationaliste et humaniste de culture, des valeurs de progrès, d'éducation, de raison et d'humanité, constitue depuis une cinquantaine d'années le noyau de l'expérience culturelle occidentale.

C'est par ce titre que Bernard Lepetit, alors secrétaire des Annales, annonçait dans le n° 48-4 de la revue (juillet-août 1993, pp. 997-998) l'ensemble de quatre notes critiques consacrées à l'Histoire des femmes en Occident, dirigée par Georges Duby et Michelle Perrot (Paris, Plon, 1991). Et c'est à cet ensemble que fait référence le texte « Ouverture » du n° 1 de la revue CLIO, Histoire, Femmes et Sociétés (1995, pp. 5-8), lorsqu'est évoquée l'attitude d'un certain nombre de publications d'...

Introduction: Conversion and the practice of transformation -- The philosophical structure of Jonathan Edwards's religious affections -- Habit, habit change, and conversion in C.S. Peirce -- Reconstructing faith : religious overcoming in Dewey's pragmatism -- Transforming obligation in William James -- Dwelling in absence: the reflective origin of conversion -- Creative transformation : the work of conversion -- The evasion of conversion in recent American philosophy.

In this paper we discuss three different kinds of disagreement that have been, or could reasonably be, characterized as deep disagreements. Principle level disagreements are disagreements over the truth of epistemic principles. Sub-principle level deep disagreements are disagreements over how to assign content to schematic norms. Finally, framework-level disagreements are holistic disagreements over meaning not truth, that is over how to understand networks of epistemic concepts and the beliefs those concepts compose. Within the context of each of these kinds of (...) disagreement it is not possible for the parties to the dispute to rationally persuade one another through only offering epistemic reasons for their conflicting points of view. However, in spite of the inability to rationally persuade, we explore how it may nevertheless be possible to rationally navigate each of these varieties of deep disagreement. (shrink)

The author argues that all forms of life are interconnected and that no being, construct, or object can exist independently from the ecological entanglement, nor does "nature" exist as an entity separate from the uglier or more synthetic elements of life. Realizing this interconnectedness is what the author calls the ecological thought. He investigates the philosophical, political, and aesthetic implications of this interconnectedness.

At any given time, a subject has a multiplicity of conscious experiences. A subject might simultaneously have visual experiences of a red book and a green tree, auditory experiences of birds singing, bodily sensations of a faint hunger and a sharp pain in the shoulder, the emotional experience of a certain melancholy, while having a stream of conscious thoughts about the nature of reality. These experiences are distinct from each other: a subject could experience the red book without the singing (...) birds, and could experience the singing birds without the red book. But at the same time, the experiences seem to be tied together in a deep way. They seem to be unified, by being aspects of a single encompassing state of consciousness. (shrink)

Two opposing tendencies in the philosophy of language go by the names of ‘referentialism’ and ‘inferentialism’ respectively. In the crudest version of the contrast, the referentialist account of meaning gives centre stage to the referential semantics for a language, which is then used to explain the inference rules for the language, perhaps as those which preserve truth on that semantics (since a referential semantics for a language determines the truth-conditions of its sentences). By contrast, the inferentialist account of meaning gives (...) centre stage to the inference rules for the language, which are then used to explain its referential semantics, perhaps as the semantics on which the rules preserve truth. On pain of circularity, we cannot combine both directions of explanation. (shrink)

This paper discusses the nature and the status of inference to the best explanation. We outline the foundational role given IBE by its defenders and the arguments of critics who deny it any place at all ; argue that, on the two main conceptions of explanation, IBE cannot be a foundational inference rule ; sketch an account of IBE that makes it contextual and dependent on substantive empirical assumptions, much as simplicity seems to be ; show how that account avoids (...) the critics ' complaints and leaves IBE an important role ; and sketch how our account can clarify debates over IBE in arguments for scientific realism. (shrink)