How can we find any satisfying assignment for a Boolean formula that has many satisfying assignments? There exists an obvious randomized algorithm for solving this problem: one can just pick an assignment at random and check the truth value of the formula for this assignment, this is iterated until a satisfying assignment occurs. Does there exist a polynomial-time deterministic algorithm that solves the same problem? This paper presents such an algorithm and shows that its worst-case running time is linear when (...) input formulas are in k-CNF and a fraction of satisfying assignments is greater than a constant. This algorithm is almost the same as the algorithm proposed by Monien and Speckenmeyer in the early 1980s for less than 2n steps 3-SAT decision.Another result of this paper is that if a formula in k-CNF has many satisfying assignments, then there exists a short satisfying assignment, i.e. an assignment of truth values to a small number of variables. The proposed algorithm yields just such a short satisfying assignment. We also show that there exist formulas in general CNF having many satisfying assignments, that have no short satisfying assignments. (shrink)

Some people have found my distinction between meaning and significance useful. In the following revision of that distinction, I hope to improve its accuracy and perhaps, therefore, its utility as well. My impulse for making the revision has been my realization, very gradually achieved, that meaning is not simply an affair of consciousness and unconsciousness. In 1967, in Validity in Interpretation, I roundly asserted that “there is no magic land of meanings outside human consciousness.” 1 That assertion would be true (...) if, godlike, we could oversee the whole of human consciousness, past, present, and future. But we language users, being limited creatures, intend our verbal meanings to go beyond what we can pay attention to at any moment. We intend our meanings to transcend our momentary limitations of attention and knowledge. Hence there is a land of meanings beyond past and present human consciousness—the land of the future. What I should have said originally is that there is no magic lance of meanings beyond the whole extent of human consciousness, past, present, and future. This correction of my original statements leads to a deepening of the concept of meaning.In 1960 I first proposed the analytical distinction between two aspects of textual interpretation. One of them, meaning, was fixed and immutable; the other, significance, was open to change.2 I acknowledged that significance, changeable or not, is the more valuable object of interpretation, because it typically embraces the present use of texts, and present use is present value. But I argued that, in academic criticism, the significance and use of a text ought to be rooted in its fixed meaning, since otherwise criticism would lack a stable object of inquiry and would merely float on tides of preference. The claim that one reader’s opinion is as valid as another’s would then be right, despite any indignant protest to the contrary. I did not wish to dissuade people from floating on the tides of preference if that was what they wished to do. I intended to provide a firm justification for those who wished to pursue historical scholarship. 3 I also assumed that even those who did not pursue historical scholarship might sometimes wish to exploit the possibility of historically fixed meaning. In my experience, even antiauthorial theorists sometimes with to regard their own texts as having a historically fixed meaning and will complain if someone misunderstands that meaning. 1. E. D. Hirsch, Jr., Validity in Interpretation, p. 4.2. See my “Objective Interpretation,” PMLA 75 : 463-79.3. See, for instance, W. K. Wimsatt, Jr., and Monroe C. Beardsley, “The Intentional Fallacy,” in Wimsatt, The Verbal Icon: Studies in the Meaning of Poetry, which ends:We submit that this is the true and objective way of criticism, as contrasted to what the very uncertainty of exegesis might tempt a second kind of critic to undertake: the way of biographical or genetic inquiry …. Our point is that such an answer to such an inquiry would have nothing to do with the poem “Prufrock”; it would not be a critical inquiry. Critical inquiries, unlike bets, are not settled in this way. Critical inquiries are not settled by consulting the oracle. [P. 18] E. D. Hirsch, Jr., professor of English at the University of Virginia, is the author of numerous works, including Validity in Interpretation and The Aims of Interpretation. His previous contributions to Critical Inquiry are “Against Interpretation?”, “The Politics of Theories of Interpretation, and “Stylistics and Synonymity”. (shrink)

Professors Battersby and Phelan have presented a lively challenge. They urge readers to reject the later, fuzzy Hirsch, in favor of an earlier, truer Hirsch.Their first objection is that Hirsch 2 has mistaken the nature of literary meaning. Battersby and Phelan reject the view that a literary work carries a general meaning analogous to the concept of “bicycle” that can be exemplified by all bicycles. They propose that a literary work is “more appropriately conceived as … a (...) Schwinn or even a red Schwinn three-speed with a blue seat and two flat tires”. They object to my adoption of Sir Philip Sidney’s claim that literature provides both the general concept and the particular example simultaneously. By saying that literature does both things at once I conflate and confuse, they say, two different intentions, because, as they aver, an exemplified concept cannot be further exemplified”.This claim reinstates the familiar New Critical doctrine that a literary concept is unique among concepts in that it can never be dissevered from its particular embodiment. E. D. Hirsch, Jr., professor of English at the University of Virginia, is the author of numerous works including Validity in Interpretation and The Aims of Interpretation. His previous contributions to Critical Inquiry include “Against Interpretation?” and “The Politics of Theories of Interpretation”. His most recent contributions is “Meaning and Significance Reinterpreted”. (shrink)

Among philosophers as well as linguists the battle is still joined between those who view the correlation between meaning and linguistic form as strictly determined by convention and those who argue for the essential indeterminacy of the relationship between meaning and form.1 Plato's Cratylus aside, the philosphical dialogue that forms the locus classicus of this debate is the following: "You're holding it upside down!" Alice interrupted. "To be sure I was!" Humpty Dumpty said gaily, as she turned it round for (...) him. "I thought it looked a little queer. As I was saying. that seems to be done right - though I haven't time to look it over thoroughly just now - and that shows that there are three hundred and sixty-four days when you might get un-birthday presents -" "Certainly," said Alice. "And only one for birthday presents, you know. There's glory for you!" "I don't know what you mean by 'glory,'" Alice said. Humpty Dumpty smiled contemptuously. "Of course you don't - till I tell you. I meant 'there's a nice knock-down argument for you!'" "But 'glory' doesn't mean 'a nice knock-down argument,'" Alice objected. "When I use a word," Humpty Dumpty said in rather a scornful tone, "it means just what I choose it to mean - neither more nor less."2 · 1. This should not be taken as an argument for the indeterminacy of linguistic meaning itself. Quite the contrary; it is because meaning can be stable and determinate despite variations in mental acts and linguistic forms that the relation between form and meaning must be indeterminate on the basis merely of rules and conventions.· 2. Lewis Carroll, Through the Looking Glass, chap. 6. E. D. Hirsch, Jr. is Kenan Professor of English at the University of Virginia. He is the author of Validity in Interpretation and Wordsworth and Schelling: A Typological Study of Romanticism. A second edition of his book on Blake, Innocence and Experience, will appear next year, as will a new book on critical theory. (shrink)

With the publication of two books and a series of articles in the late 1960s and 1970s, E. D. Hirsch Jr. established himself as a major voice in the debates about interpretation and literary criticism. Against the mainstream, he proposed and defended an “objectivist” hermeneutics. His voice has remained alive in the debates as the proponent of objectivity in interpretation. As the title of his major book on hermeneutics, Validity in Interpretation (1976), suggests, Hirsch's primary concern is the (...) validation of an interpretation. According to Hirsch, validation is one of two sides of the interpretive process. The first step of any interpretation is guessing at its meaning. Hirsch's genial guess was Schleiermacher's divination. In the course of his discussion of genre, to clarify his view of interpretation, Hirsch mentions Emilio Betti's classification of three types of interpretation: re‐cognitive (historical and literary), presentational (dramatic and musical), and normative (legal and religious). (shrink)

Many neuroimaging studies of semantic memory have argued that knowledge of an object's perceptual properties are represented in a modality-specific manner. These studies often base their argument on finding activation in the left-hemisphere fusiform gyrus-a region assumed to be involved in perceptual processing-when the participant is verifying verbal statements about objects and properties. In this paper, we report an extension of one of these influential papers-Kan, Barsalou, Solomon, Minor, and Thompson-Schill (2003 )-and present evidence for an amodal component in the (...) representation and processing of perceptual knowledge. Participants were required to verify object-property statements (e.g., "cat-whiskers?"; "bear-wings?") while they were being scanned by functional magnetic resonance imaging (fMRI). We replicated Kan et al.'s activation in the left fusiform gyrus, but also found activation in regions of left inferior frontal gyrus (IFG) and middle-temporal gyrus, areas known to reflect amodal processes or representations. Further, only activations in the left IFG, an amodal area, were correlated with measures of behavioural performance. (shrink)

By demonstrating the uniformity and universality of the principles of valid interpretation of verbal texts of any sort, this closely reasoned examination provides a theoretical foundation for a discipline that is fundamental to virtually all humanistic studies. It defines the grounds on which textual interpretation can claim to establish objective knowledge, defends that claim against such skeptical attitudes as historicism and psychologism, and shows that many confusions can be avoided if the distinctions between meaning and significance, interpretation and criticism are (...) correctly understood. It provides perhaps the first genuinely comprehensive account of hermeneutic theory to appear in English and the first systematic presentation of the principles of valid interpretation in any language. Mr. Hirsch, associate professor of English at the University of Virginia, is the author of _Wordsworth and Schelling _and _Innocence and Experience: An Introduction to Blake._ “Here is a book that brings logic to the most unruly of disciplines, literary interpretation. Viewing this subject within the tradition of hermeneutics, Mr. Hirsch is able to trace its origins and development with brilliant insight. The result is a lucidly systemic and authoritative account of the premises and procedures applicable to the interpretation of a literary text. Mr. Hirsch has performed a monumental service thereby that of reinstating the credentials of objectivism and defining the limits of the aesthetics of truth. This study is a necessary took for anyone who wants to talk sense about literature.”—_Virginia Quarterly Review_ “Professor Hirsch demonstrates convincingly that objectivity is attainable in humane studies, and that it is not identified with the subject but with the evidence. A valid interpretation is not necessarily a correct one, but one which is more probably than any other on the basis of existing evidence. He makes a subtle and important distinction between a text’s ‘meaning’ and its ‘significance’, and brilliantly relates meaning to understanding and interpretation to explanation…” In short, this is a work which future students of literary theory cannot afford to neglect.”—_Notes and Queries_ E.D. Hirsch, Jr., is professor of English at the University of Virginia. (shrink)

Rule of law and constitutionalist ideals are understood by many, if not most, as necessary to create a just political order. Defying the traditional division between normative and positive theoretical approaches, this book explores how political reality on the one hand, and constitutional ideals on the other, mutually inform and influence each other. Seventeen chapters from leading international scholars cover a diverse range of topics and case studies to test the hypothesis that the best normative theories, including those regarding the (...) role of constitutions, constitutionalism and the rule of law, conceive of the ideal and the real as mutually regulating. (shrink)

Based on a framework that distinguishes several types, roles and functions of values in science, we discuss legitimate applications of values in the validation of computer simulations. We argue that, first, epistemic valuesEpistemic values, such as empirical accuracyAccuracy and coherence with background knowledgeBackground knowledge, have the role to assess the credibilityCredibility of simulation results, whereas, second, cognitive valuesCognitive values, such as comprehensiveness of a conceptual modelConceptual model or easy handling of a numerical model, have the role to assess the usefulness (...) of a model for investigating a hypothesisHypothesis. In both roles, values perform what we call first-order functions. In addition, cognitive values may also serve an auxiliary function by facilitating the assessment of credibility. As for a third type of values, i.e. social valuesSocial values, their legitimate role consists in specifying and weighing epistemic and cognitive values with respect to practical uses of a simulation, which is considered a second-order function. Rational intersubjective agreementAgreement on how to specify and weigh the different values is supposed to ensure objectivity in simulation validation. (shrink)

In _Why Knowledge Matters_, influential scholar E. D. Hirsch, Jr., addresses critical issues in contemporary education reform and shows how cherished truisms about education and child development have led to unintended and negative consequences. Hirsch, author of _The Knowledge Deficit_, draws on recent findings in neuroscience and data from France to provide new evidence for the argument that a carefully planned, knowledge-based elementary curriculum is essential to providing the foundations for children’s life success and ensuring equal opportunity for (...) students of all backgrounds. In the absence of a clear, common curriculum, Hirsch contends that tests are reduced to measuring skills rather than content, and that students from disadvantaged backgrounds cannot develop the knowledge base to support high achievement. Hirsch advocates for updated policies based on a set of ideas that are consistent with current cognitive science, developmental psychology, and social science. The book focuses on six persistent problems of recent US education: the over-testing of students; the scapegoating of teachers; the fadeout of preschool gains; the narrowing of the curriculum; the continued achievement gap between demographic groups; and the reliance on standards that are not linked to a rigorous curriculum. Hirsch examines evidence from the United States and other nations that a coherent, knowledge-based approach to schooling has improved both achievement and equity wherever it has been instituted, supporting the argument that the most significant education reform and force for equality of opportunity and greater social cohesion is the reform of fundamental educational ideas. _Why Knowledge Matters _introduces a new generation of American educators to Hirsch’s astute and passionate analysis. (shrink)

Sustainable development calls for choices among alternative policy options. It is a common view that such choices can be justified by appealing to an evaluative ranking of the options with respect to how their consequences affect a broad range of prudential and moral values. Three philosophically motivated proposals for analysing evaluative rankings are discussed: the measured merits model (e.g. Chang), the ordered values model (e.g. Griffin), and the permissible preference orderings model (Rabinowicz). The analysis focuses on the models’ potential for (...) making transparent how an evaluative ranking can contribute to a justified choice among options, particularly in situations that involve diverse values as typically found in debates on sustainable development. Such transparency plays a crucial role when policy rankings are going to be used as arguments in political decision processes. The measured merits model is found to have questionable consequences for the concept of sustainability, while the ordered values model calls for an axiological framework that cannot plausibly be spelled out for sustainability. The permissible preference orderings model is more promising. Its formal structure and its ability to deal with value-pluralism provide an interesting re-structuring of the problem of justifying choices in sustainability issues. (shrink)

Que signifie autoriser le suicide assisté et l'euthanasie? Et avec quelles conséquences? Quelles sont les responsabilités humaines, politiques et soignantes engagées à l'égard de la personne vulnérable atteinte d'une maladie incurable, en situation de handicap ou de grande dépendance, voire éprouvant une souffrance qui lui est insupportable? L'accompagnement relèvera-t-il alternativement du libre choix de la personne entre soins palliatifs ou aide médicale à mourir? Au regard des pays ayant déjà légiféré dans ce domaine, quelle certitude a-t-on que le 'modèle français' (...) d'assistance active à mourir sera soumis à des critères d'encadrement strictement appliqués? En quoi ce choix de société engage-t-il les valeurs de notre démocratie? C'est à toutes ces questions que répond en spécialiste Emmanuel Hirsch, en démontrant que soigner par la mort n'est plus un soin. Un ouvrage indispensable pour saisir les enjeux du débat actuel et mesurer les conséquences potentielles d'une législation sur la fin de vie pour les droits fondamentaux de la personne."--Page 4 of cover. (shrink)

We confirm a conjecture, about neat embeddings of cylindric algebras, made in 1969 by J. D. Monk, and a later conjecture by Maddux about relation algebras obtained from cylindric algebras. These results in algebraic logic have the following consequence for predicate logic: for every finite cardinal α ≥ 3 there is a logically valid sentence X, in a first-order language L with equality and exactly one nonlogical binary relation symbol E, such that X contains only 3 variables (each of which (...) may occur arbitrarily many times), X has a proof containing exactly α + 1 variables, but X has no proof containing only α variables. This solves a problem posed by Tarski and Givant in 1987. (shrink)

A cylindric algebra atom structure is said to be strongly representable if all atomic cylindric algebras with that atom structure are representable. This is equivalent to saying that the full complex algebra of the atom structure is a representable cylindric algebra. We show that for any finite n >3, the class of all strongly representable n-dimensional cylindric algebra atom structures is not closed under ultraproducts and is therefore not elementary. Our proof is based on the following construction. From an arbitrary (...) undirected, loop-free graph Γ, we construct an n-dimensional atom structure E(Γ), and prove, for infinite Γ, that E(Γ) is a strongly representable cylindric algebra atom structure if and only if the chromatic number of Γ is infinite. A construction of Erdős shows that there are graphs (k < ω)with infinite chromatic number, but having a non-principal ultraproduct $\prod _D\Gamma _k $ whose chromatic number is just two. It follows that $E(\Gamma _k )$ is strongly representable (each k < ω) but $\Pi _D E(\Gamma _k)$ is not. (shrink)

Melanesian ethnography has been a substantial and enduring presence in Strathern’s comparative project of anthropology. The cornerstone of this project was The Gender of the Gift, where a model was established for demonstrating the analogies between Melanesian societies based on a system of common differences. The comparisons created in this work were centred on a real and radical divide between Melanesia and the West. Strathern’s subsequent comparative work has examined the debates surrounding new social and technological forms in the West (...) (e.g. new genetic and reproductive technologies) through drawing analogies with Melanesian social forms; she has simultaneously highlighted the limits of these comparisons. Her intention in this comparative project has been to expand the range of concepts and language used to understand western social and technological innovations that potentially affect the world at large, so that debate is not simply circumscribed by western preoccupations and concerns. As mediated through the analysis of Strathern and the other Melanesian anthropologists she draws on, the voices and interests of non-westerners can potentially inform and even reform the grounds of such deliberations. (shrink)

The shape and function of ethical imperatives may vary if the context is an interaction between strangers, or those who are well acquainted. This idea, taken up from Stephen Toulmin’s distinction between an “ethics of strangers” and an “ethics of intimacy”, can be applied to encounters in healthcare. There are situations where healthcare personnel (HCP) know their patients (corresponding to an “ethics of intimacy”) and situations where HCP do not know their patients (corresponding to “an ethics of strangers”). Does it (...) make a difference for normative imperatives that follow from central concepts and principles in medical ethics whether HCP know their patients or not? In our view, this question has not yet been answered satisfactorily. Once we have clarified what is meant by “knowing the patient”, we will show that the distinction is particularly relevant with regard to some thorny questions of autonomy in healthcare (e.g., regarding advance directives or paternalism in the name of autonomy), whereas the differences with regard to imperatives following from the principles of justice and beneficence seem to be smaller. We provide a detailed argument for why knowing the patient is ethically valuable in encounters in healthcare. Consequently, healthcare systems should provide fertile ground for HCP to get to know their patients, and structures that foster therapeutic continuity. For this to succeed, a number of questions still need to be clarified, which is an important task for medical ethics. (shrink)

Based on a framework that distinguishes several types, roles and functions of values in science, we discuss legitimate applications of values in the validation of computer simulations. We argue that, first, epistemic values, such as empirical accuracy and coherence with background knowledge, have the role to assess the credibility of simulation results, whereas, second, cognitive values, such as comprehensiveness of a conceptual model or easy handling of a numerical model, have the role to assess the usefulness of a model for (...) investigating a hypothesis. In both roles, values perform what we call first-order functions. In addition, cogni¬tive values may also serve an auxiliary function by facilitating the assessment of credibility. As for a third type of values, i.e. social values, their legitimate role consists in specifying and weighing epistemic and cognitive values with respect to practical uses of a simulation, which is considered a second-order function. Rational intersubjective agreement on how to specify and weigh the different values is supposed to ensure objectivity in simulation validation. (shrink)

William Irwin é Professor de Filosofia no King's College em Wilkes-Barre Pensilvânia, nasceu em 1970 e residiu em Yonkers, New York. Entrou na Regis High School em Manhattan, uma instituição Jesuíta, graduando-se em 1988. Graduou-se em Filosofia na Universidade Fordham em 1992, tendo frequentado Fordham com uma bolsa presidencial completa. Ele recebeu seu Ph.D. em Filosofia pela Universidade de Buffalo, a Universidade Estadual de Nova York, em 1996, aos 26 anos. A dissertação de Irwin, Harmonizing Hermeneutics: The Normative and Descriptive (...) Approaches, Interpretation and Criticism, foi premiada com o Prêmio Perry para Dissertações Destacadas em Filosofia. Seu diretor de dissertação foi Jorge J. E. Gracia. E.D. Hirsch, Jr. foi seu avaliador externo. Publicou artigos e resenhas a respeitos de Hermenêutica, de Sartre, de Platão, de Filosofia da Lei e de Pedagogia Filosófica. O professor Irwin é mais conhecido por ter originado o gênero livro "filosofia e cultura popular", à qual se integram obra como Matrix – Bem-vindo ao deserto do real, Os Simpsons e Filosofia e Oh! De Homer. (shrink)

On Roger Bacon's life and works, by A. G. Little.--Der einfluss des Robert Grosseteste auf die wissenschaftliche richtung des Roger Bacon, von Ludwig Baur.--La place de Roger Bacon parmi les philosophes du XIIIe siècle, par François Picavet.--Roger Bacon and the Latin vulgate, by Francis Aidan, cardinal Gasquet.--Roger Bacon and philology, by S. A. Hirsch.--The place of Roger Bacon in the history of mathematics, by David Eugene Smith.--Roger Bacon und seine verdienste um die optik, von Eilhard Wiedemann.--Roger Bacons lehre von (...) der sinnlichen spezies und vom seḣvorgange, von Sebastian Vogl.--Roger Bacons art des wissenschaftlichen arbeitens dargestellt nach seiner schrift De speculis, von J. Würschmidt.--Roger Bacon et l'horreur du vide, par Pierre Duhem.--Roger Bacon, his relations to alchemy and chemistry, by M. M. Pattison Muir.--Roger Bacon and gunpowder, by H. W. L. Hime.--Roger Bacon and medicine, by E. Withington. (shrink)

Martin Heidegger, in a recently published group of essays, discusses the persistently ... was shattered by ED Hirsch's book Validity in Interpretation. ...

Climate model projections are used to inform policy decisions and constitute a major focus of climate research. Confidence in climate projections relies on the adequacy of climate models for those projections. The question of how to argue for the adequacy of models for climate projections has not gotten sufficient attention in the climate modelling community. The most common way to evaluate a climate model is to assess in a quantitative way degrees of “model fit”; i.e., how well model results fit (...) observation-based data (empirical accuracy) and agree with other models or model versions (robustness). However, such assessments are largely silent about what those degrees of fit imply for a model’s adequacy for projecting future climate. We provide a conceptual framework for discussing the evaluation of the adequacy of models for climate projections. Drawing on literature from philosophy of science and climate science, we discuss the potential and limits of inferences from model fit. We suggest that support of a model by background knowledge is an additional consideration that can be appealed to in arguments for a model’s adequacy for long-term projections, and that this should explicitly be spelled out. Empirical accuracy, robustness and support by background knowledge neither individually nor collectively constitute sufficient conditions in a strict sense for a model’s adequacy for long-term projections. However, they provide reasons that can be strengthened by additional information and thus contribute to a complex non-deductive argument for the adequacy of a climate model or a family of models for long-term climate projections. (shrink)

In the present work we provide a logical analysis of normatively determined and non-determined propositions. The normative status of these propositions depends on their relation with another proposition, here named reference proposition. Using a formal language that includes a monadic operator of obligation, we define eight dyadic operators that represent various notions of “being normatively (non-)determined”; then, we group them into two families, each forming an Aristotelian square of opposition. Finally, we show how the two resulting squares can be combined (...) to form an Aristotelian cube of opposition. (shrink)

On Roger Bacon's life and works, by A. G. Little. -- Der Einfluss des Robert Grosseteste auf die wissenschaftliche Richtung des Roger Bacon, von L. Baur. -- La place de Roger Bacon parmi les philosophes du xiie siècle, par F. Picavet. -- Roger Bacon and the Latin vulgate, by F. A. Gasquet. -- Roger Bacon and philology, by S. A. Hirsch. -- The place of Roger Bacon in the history of mathematics, by D. E. Smith. -- Roger Bacon und (...) seine Verdienste um die Optik, von E. Wiedemann. -- Roger Bacon's Lehre von der sinnlichen Spezies und vom Sehvorgange, von S. Vogl. -- Roger Bacon's art des wissenschaftlichen Arbeitens dargestellt nach seineer Schrift De speculis, von Würschmidt. -- Roger Bacon et l'horreur du vide, par P. Duhem. -- Roger Bacon : his relations to alchemy and chemistry, by M. M. P. Muir. -- Roger Bacon and gunpowder, by H. W. L. Hime. -- Roger Bacon and medicine, by E. W, Withington. -- Roger Bacon in English literature, by Sir J. E. Sandys. -- Roger Bacon's works with references to the mss. printed editions, by A, G. Little (p. [375]-425). (shrink)

В книге анализируются проблемы творчества с позиции новейших достижений когнитивной науки и неклассической эпистемологии. Предназначено специалистам по философии.

Conservative educational critics (e.g., Allan Bloom, Mortimer Adler, and E. D. Hirsch, Jr.) have succeeded in flaming the debate on the reform of education in a manner that ignores the questions that should be asked about how our most fundamental cultural assumptions are contributing to the ecological crisis. In this paper, I examine the deep cultural assumptions embedded in their reform proposals that furtherexacerbate the crisis, giving special attention to their view of rational empowerment, the progressive nature of change, (...) and their anthropocentric view of the universe. I argue that their form of conservatism must be supplanted by the more biocentric conservatism of such thinkers as Aldo Leopold, Wendell Berry, and Gary Snyder. (shrink)

There are parallels between Gigerenzer et al.'s emphasis on the rationality of adults' reasoning in terms of simple heuristics and developmental researchers' emphasis on the rationality of children's reasoning in terms of intuitive theories. Indeed, just as children become better at using their theories, so might some people, experts, become better at using simple heuristics.