Is science in the truth business, discovering ever more about an independent and largely unobservable world? Karl Popper and Thomas Kuhn, two of the most important figures in science studies in the 20th century, gave accounts of science that are in some tension with the truth view. Their central claims about science are considered here, along with two arguments that bear directly on the truth question. One argument makes an appeal to past scientific failures to argue against the truth view; (...) the other makes an appeal to present scientific successes to argue for it. Both arguments are problematic. (shrink)

In this paper I take Hempel’s raven paradox as the claim that statements of the form ‘∼Ru v Bu’, ‘u is not a raven or u is black,’ confirm the hypothesis h ‘(x)(Rx → Bx)’, ‘All ravens are black.’ Although Hempel discusses this using a criterion of confirmation expressed wholly in terms of deductive logic (see 1965, pp. 35-9), it has become more common to articulate criteria of confirmation using concepts of probability and, in particular, to employ the positive relevance (...) criterion of confirmation which says that, given background knowledge k, (i) e confirms h if and only if P(h/e.k)>P(h/k); (ii) e disconfirms h if and only if P(h/e.k)shrink)

According to Hitchcock and Sober’s argument from overfitting for weak predictivism, the fact that a theory accurately predicts a portion of its data is evidence that it has been formulated by balancing simplicity and goodness-of-fit rather than overfitting data. The core argument consists of two likelihood inequalities. In this paper I show that there is a surprising accommodation-friendly implication in their argument, and contend that it is beset by a substantial difficulty, namely, there is no good reason to think that (...) their second likelihood inequality is true. (shrink)

Philosophy of science pays meagre attention to the social sciences and humanities. It deals with basic questions in the natural sciences like Hempel, or general epistemology like e.g. Putnam and Kripke. Popper is the main exception.

This reassessment of the long debate about Friedman's thesis on the pointlessness of testing assumptions in economics shows that Friedman's three famous examples, on which a large part of the credit given to this thesis is based, far from substantiating it, can be used to establish radically opposite conclusions. Furthermore, it is shown that this so-called “instrumentalist” thesis, when applied by Friedman to economics, is of a quite different nature and raises much more serious problems than the standard instrumentalist thesis (...) devised by some methodologists of physics. To disentangle these ambiguities concerning realism and instrumentalism applied to physics or to economics, this paper refers to Van Fraassen's “constructive empiricism”, which is helpful in reformulating, in a more satisfactory way, the essentials of Friedman's considerations about empiricism and anti-realism. (shrink)

Introduction and Overview Content Type Journal Article Category Introduction Pages 151-163 DOI 10.1007/s10670-011-9288-9 Authors Theo Kuipers, Faculty of Philosophy, University of Groningen, Groningen, The Netherlands Gerhard Schurz, Department of Philosophy, University of Duesseldorf, Universitaetsstrasse 1, Geb. 23.21, 40225 Duesseldorf, Germany Journal Erkenntnis Online ISSN 1572-8420 Print ISSN 0165-0106 Journal Volume Volume 75 Journal Issue Volume 75, Number 2.

The author begins by sketching the characteristics or elements of every tradition. Some reasons are then suggested for the propensity of so many authors to contrast statutes with other, allegedly more traditional kinds of law. However, it is argued that statutes are deeply embedded, along with customary and judge‐made law, in the highly traditional practices of law and that this matters much more than is commonly suspected. The thesis being defended here is not merely that law includes traditions along with (...) rules, principles, maxims, and so on, but rather that legal systems should be understood as traditions, albeit highly complex ones. Not only are ancient legal systems (the Talmudic, for example) held to be traditional; modem legal positive orders are viewed as being traditional too. Finally, the concept of “communities of interpretation” is applied to the contemporary posited statutes which are believed by many to be a distinguishing feature of modem legal systems. (shrink)

In a recent book, Laudan has put forward a new and provocative theory of scientific progress. In this discussion we shall show that some of the claims which Laudan presents as new, are (or at least can be made into) parts of more "traditional" wisdom. In particular (in Section 1) we shall criticize his claim to have uncovered a new class of non-refuting anomalies for theories. We shall also (in section 2) criticize Laudan's view that a theory may have an (...) anomaly because of conflict with non-scientific theories--as long as those theories are perceived of as rational. Laudan's view of theory-assessment--via the assessment of "research traditions"--is also examined in this section. It is found to be a significant departure from both traditional, and more radical (Lakatosian, Kuhnian, Feyerabendian) alternatives. Finally, (in Section 3), we examine Laudan's claim that theories may have anomalies because of conflict with methodological theories. (shrink)

Although Mealey's account provides several interesting hypotheses, her integration across disparate samples renders the value of her explanation for psychopathy ambiguous. Recent evidence on Psychopathy Checklist-identified samples (Hare, 1991) suggests primary emotional and cognitive deficits inconsistent with her model. Whereas high-anxious psychopaths display interpersonal deficits consistent with Mealey's hypotheses, low-anxious psychopaths' deficits appear more sensitive to situational parameters than predicted.

Im Gegensatz zur verbreiteten Auffassung über die Voraussetzungen zur Ausbildung neuen Wissens entstehen wichtige Umstellungen im Denken häufig nicht durch harte Konfrontation zwischen Hypothesen bzw. Theorien. Vielmehr sind oft allmähliche Deutungsverschiebungen bei der Auffassung einer einzigen Hypothese bzw. Theorie zu beobachten. Derartige Prozesse erstrecken sich in der Regel über vergleichsweise lange Zeiträume und sind nicht wie die erstgenannten Vorgänge von eher kurzfristiger Natur. Verglichen mit dem Ausgangspunkt der jeweiligen Entwicklung tritt uns aber eine oft an ihrem Ende tiefgreifend veränderte Wissenssituation (...) entgegen. Infolge der Langsamkeit der geschilderten Entwicklungen und der damit zugleich gegebenen Gewöhnung ihrer Vertreter an die geänderte Situation sind derartige Veränderungen des Wissens selten in einem Ausmaß vom Bewußtsein der Neuheit begleitet, wie dies bei Vorgängen der zuerst geschilderten Art der Fall ist. Trotzdem können aber gerade diese Veränderungen nachhaltiger und von grundlegenderer Art sein als jene. In der Folge sollen die beiden angedeuteten Wege der Erkenntnis hinsichtlich ihres strukturellen Unterschieds klarer erfaßt werden. Unterschiedliche Annahmen über die zugrundeliegende Ontologie sind für diese beiden Arten der Wissensbildung von besonderem Interesse. Insbesondere wird sich auch zeigen, daß die bereits in der Fristfrage berührten pragmatischen Gesichtspunkte eine wichtige Rolle spielen. Die beiden in dieser Untersuchung herauspräparierten "Wege" sind Aspekte jeweils eines Erkenntnisprozesses. So sind sie nicht gegeneinander auszuspielen. Vielmehr weist jeder derartige Vorgang Charakteristika beider modellhaft erfaßten Typen auf. (shrink)

This essay discusses critically the ways in which different metaphors employed to illustrate the practices of knowledge production and knowledge acquisition as well as scientific and scholarly research shape our understanding of the academic form of life. The essay examines the metaphors of knowledge and their role in academia by means of philosophical analysis and a rhetorical analysis of language, thereby defending the core values of academic freedom. It focuses on two pairs of metaphors highly relevant to the tensions characteristic (...) of contemporary academic work: verticality and horizontality, on the one hand, and change and stability, on the other. The entanglement of perspectives from philosophy and historical rhetoric serves a metaphilosophical goal here: to show that our philosophical understanding of the nature of inquiry will be considerably enhanced if we seriously, and with both historical and literary sensibilities, study the metaphors we use in characterizing our epistemic and cognitive projects. (shrink)

Science progresses if we succeed in rendering the objects of scientific inquiry more comprehensively or more precisely. Popper tries to formalize this venerable idea. According to him the most comprehensive and most precise description of the world is given by the set T of all true statements. A hypothesis comes the closer to T, or has the more verisimilitude, the more true consequences and the fewer false consequences it implies. Popper proposes to order hypotheses by the inclusion relations between the (...) sets of their true and of their false consequences ("truth contents" and "falsity contents"). A partial ordering would permit one to decide whether the substitution of theory t 1 by t 2 represents scientific progress. But because of the logical relations between the elements of the sets of logical consequences, or contents, false hypotheses cannot be compared. As our theories usually turn out to be false sooner or later, they can seldom be compared as to their verisimilitude and when they can, the result depends only on which theory implies the other and on their truth-values. Popper even tries to define a measure of verisimilitude on the partial ordering. It has to fail for the same reason. In addition he tries to relativize the concept of a content and fails. What is more, any attempt at defining a measure of better or worse correspondence to the whole truth must fail, as there is no justification for saying that any true primitive sentence asserts as much about reality as some other primitive sentence, or more. (shrink)

This introduction presents an overview of Plato and the Mythic Tradition in Political Thought and its central arguments. I situate the contributions of the book within theoretical work on political myth, both traditional and more recent, and also within scholarship on the philosophical function of Plato’s myths. Whereas political theorists have long conceived of myth in pathological terms, Plato and the Mythic Tradition joins a growing body of work envisioning a more constructive role for myth in politics and philosophy. This (...) was a task that preoccupied Plato and some of his most significant modern readers. Recovering their common project, moreover, helps us tell a different story about Plato’s philosophical myths and their reception in modern political thought. (shrink)

We consider four mechanisms by which apparent discontinuities in the distribution of antisociality could arise: (1) executive genes or hormonal systems, (2) multiplicative interactions of predisposing factors, (3) environmental tracking into a limited number of social roles, and (4) cross-generational gene—environment interactions. A more explicit consideration of complex self-organizing dynamic systems may help us understand the maintenance of antisocial subpopulations.

The subject of this paper is a particular kind of fear. The danger to which it is a response is the possibility that the evaluative dimension of life from which we derive the values by which we live is arbitrary. If it were arbitrary, nothing we value would be valuable. There are strong reasons both for and against this kind of fear. I am concerned with understanding these reasons and judging their strengths and weaknesses.

In diesem Beitrag wird ausgeführt, daß Poppers Falsifikationskriterium einen logischen Fehler enthält. Die Regeln deduktiver Ableitung sind selbst für ihre Durchführung von induktiver Ableitung abhängig. Um das "Criterion of Flasification" für gültig zu erklären, beruft sich Popper auf diese Regeln deduktiver Ableitung. Es wird weiter gezeigt, daß eine Untersuchung aktueller wissenschaftlicher Gesetze nicht die These beweist, daß die wissenschaftlichen Gesetze universale Feststellungen von unbeschränktem Horizonte in der Zeit und im Zeitraum sind. Die Anerkennung dieser Tatsache scheint im Zusammenhang der wissenschaftlichen (...) Forschung die Wichtigkeit des Problems der Induktion sehr zu verkleinern. (shrink)

Ronald N. Giere’s Perspectival realism is one among the various approaches in philosophy of science claiming to offer an alternative understanding of scientific realism. In various writings, Giere has claimed that scientific knowledge is perspectival, and that models represent some aspects of the world based on the relation of fit. This paper argues that Giere’s perspectivism does not offer a genuine alternative as he claims, due to its difficulties in accounting for truth and the objective nature of scientific knowledge. In (...) an attempt to salvage perspectivism, I propose an alternative understanding based on a Syntactic Approach to theories. (shrink)

Beyond modularityattempts a synthesis of Fodor's anticonstructivist nativism and Piaget's antinativist constructivism. Contra Fodor, I argue that: (1) the study of cognitive development is essential to cognitive science, (2) the module/central processing dichotomy is too rigid, and (3) the mind does not begin with prespecified modules; rather, development involves a gradual process of “modularization.” Contra Piaget, I argue that: (1) development rarely involves stagelike domain-general change and (2) domainspecific predispositions give development a small but significant kickstart by focusing the infant's (...) attention on proprietary inputs. Development does not stop at efficient learning. A fundamental aspect of human development (“representational redescription”) is the hypothesized process by which information that isina cognitive system becomes progressively explicit knowledgetothat system. Development thus involves two complementary processes of progressive modularization and progressive “explicitation.” Empirical findings on the child as linguist, physicist, mathematician, psychologist, and notator are discussed in support of the theoretical framework. Each chapter concentrates first on the initial state of the infant mind/brain and on subsequent domain-specific learning in infancy and early childhood. It then goes on to explore data on older children's problem solving and theory building, with particular focus on evolving cognitive flexibility. Emphasis is placed throughout on the status of representations underlying different capacities and on the multiple levels at which knowledge is stored and accessible. Finally, consideration is given to the need for more formal developmental models, and a comparison is made between representational redescription and connectionist simulations of development. In conclusion, I consider what is special about human cognition by speculating on the status of representations underlying the structure of behavior in other species. (shrink)

In this paper a model is presented for the growth of knowledge in a dynamic scientific system. A system which is in some respects an idealization of a Lakatosian research program. The kinematics of the system is described in terms of two probabilistic variables, one of which is related to the evolution of its theoretical component and the other--to the growth of the empirical component. It is shown that when the empirical growth is faster than the theoretical growth the posterior (...) probability of the theoretical component increases. Thus, empirical progressiveness of a research program, as explicated in this model, is accompanied by an increase in the degree of confirmation. In such a case the system grows in a Popperian-like spirit, while learning from experience in a Bayesian manner. (shrink)

The notion of truthlikeness, coined by Karl Popper, has very much fallen into oblivion, but the paper defends it. It can be regarded in two different ways. Either as a notion that is meaningful only if some formal measure of degree of truthlikeness can be constructed; or as a merely non-formal comparative notion that nonetheless has important functions to fulfill. It is the latter notion that is defended; it is claimed that such a notion is needed for both a reasonable (...) backward-looking and a reasonable forward-looking view of science. On the one hand, it is needed in order to make sense of the history of science as containing a development; on the other, it is needed in order to understand present-day sciences as containing knowledge-seeking activities. The defense of truthlikeness requires also a defense of two other notions: quasi-comparisons and regulative ideas, which is supplied in this paper as well. (shrink)

Three main conflicts between Popper and Agassi are discussed. Over the ethics of hard work which in reality turns out to be over perfectionism and optimism. Over the role of metaphysics in science. Over methodological individualism where is it argued that Popper's views are contradictory and that Agassi' Institutionalism prevails.

Although there is universal consensus both in the science education literature and in the science standards documents to the effect that students should learn not only the content of science but also its nature, there is little agreement about what that nature is. This led many science educators to adopt what is sometimes called “the consensus view” about the nature of science (NOS), whose goal is to teach students only those characteristics of science on which there is wide consensus. This (...) is an attractive view, but it has some shortcomings and weaknesses. In this article we present and defend an alternative approach based on the notion of family resemblance. We argue that the family resemblance approach is superior to the consensus view in several ways, which we discuss in some detail. (shrink)

We historically trace various non-conventional explanations for the origin of the cosmic microwave background and discuss their merit, while analyzing the dynamics of their rejection, as well as the relevant physical and methodological reasons for it. It turns out that there have been many such unorthodox interpretations; not only those developed in the context of theories rejecting the relativistic paradigm entirely but also those coming from the camp of original thinkers firmly entrenched in the relativistic milieu. In fact, the orthodox (...) interpretation has only incrementally won out against the alternatives over the course of the three decades of its multi-stage development. While on the whole, none of the alternatives to the hot Big Bang scenario is persuasive today, we discuss the epistemic ramifications of establishing orthodoxy and eliminating alternatives in science, an issue recently discussed by philosophers and historians of science for other areas of physics. Finally, we single out some plausible and possibly fruitful ideas offered by the alternatives. (shrink)