This book concentrates on three topics: the problem of the semantic incommensurability of theories; the non-algorithmic character of rational scientific theory choice and naturalised accounts of the rationality of methodological change. The underlying aim is to show how the phenomenon of extensive conceptual and methodological variation in science need not give rise to a thorough-going epistemic or conceptual relativism.

We have three goals in this paper. First, we outline an ontology of stance, and explain the role that modes of engagement and styles of reasoning play in the characterization of a stance. Second, we argue that we do enjoy a degree of control over the modes of engagement and styles of reasoning we adopt. Third, we contend that maximizing one’s prospects for change also maximizes one’s rationality.

Abstract.Reflecting on the future of the field of science-and-religion, I focus on three aspects. First, I describe the history of the religion-and-science dialogue and argue that the emergence of the field was largely contingent on social-cultural factors in Western theology, especially in the United States. Next, I focus on the enormous influence of science on Western society and on what I call cultural scientism, which influences discussions in science-and-religion, especially how theological notions are taken up. I illustrate by sketching the (...) way divine action has been studied in science-and-religion. The divine-action debates may seem irrelevant to theologians because the way divine action is dealt with in science-and-religion is theologically problematic. Finally, I analyze the quest for integration and unity of science and religion that underlies much of the contemporary field of science-and-religion and was stimulated particularly by the efforts of Ian Barbour. I argue that his quest echoes the logical positivist vision of unification and has a strong bias toward science as the sole source of rationality, which does not take theology fully seriously. (shrink)

In this paper a bootstrap theory of rationality is presented. Such a theory is an attempt to explain how standards of rational inquiry may be rationally revised — without assuming that there are any basic and fixed standards for evaluating such revisions. The general bootstrap idea is briefly presented in the first sections. The main part of the paper consists of a discussion of what normative requirements a bootstrap theory should contain, and a number of requirements on rational revisions are (...) proposed. The final section deals with the question of whether a bootstrap theory is self-referentially coherent. (shrink)

While a great deal of abuse has been directed at intelligent design theory (ID), its starting point is a fact about biological organisms that cries out for explanation, namely "specified complexity" (SC). Advocates of ID deploy three kind of argument from specified complexity to the existence of a designer: an eliminative argument, an inductive argument, and an inference to the best explanation. Only the first of these merits the abuse directed at it; the other two arguments are worthy of respect. (...) If they fail, it is only because we have a better explanation of SC, namely Darwin's theory of evolution by natural selection. (shrink)

John Preston has claimed that we must understand Paul Feyerabend's later, post-1970, philosophy in terms of a disappointed Popperianism: that Feyerabend became a sceptical, relativistic, literal anarchist because of his perception of the failure of Popper's philosophy. I argue that this claim cannot be supported and trace the development of Feyerabend's philosophy in terms of a commitment to the central Popperian themes of criticism and critical explanatory progress. This commitment led Feyerabend to reject Popper's specific methodology in favour of a (...) pluralistic methodology, but the commitment to the central values of criticism and critical explanatory progress remained . Moreover, methodological pluralism does not imply scepticism, relativism, or literal anarchism. Feyerabend was not a disappointed Popperian, but, in many respects, a die-hard pluralistic Popperian. (shrink)

In a recent exchange, John Worrall and Larry Laudan have debated the merits of the model of rational scientific change proposed by Laudan in his book Science and Values. On the model advocated by Laudan, rational change may take place at the level of scientific theory and methodology, as well as at the level of the epistemic aims of science. Moreover, the rationality of a change which occurs at any one of these three levels may be dependent on considerations at (...) the remaining levels. Yet, in spite of the avowedly anti-relativistic motivation of Laudan's model, Worrall criticizes Laudan for irrevocably relativizing scientific rationality to historically variant methodological standards. (shrink)

This paper provides a rationale for advocating pancritical rationalism. First, it argues that the advocate of critical rationalism may accept (but not be internally justified in accepting) that there is ‘justification’ in an externalist sense, specifically that certain procedures can track truth, and suggest that this recognition should inform practice; that one should try to determine which sources and methods are appropriate for various aspects of inquiry, and to what extent they are. Second, it argues that if there is external (...) justification, then a critical rationalist is better off than a dogmatist from an evolutionary perspective. (shrink)

Whether educational research should employ the ‘scientific method’ has been a recurring issue in its history. Hence, textbooks on research methods continue to perpetuate the idea that research students ought to choose between competing camps: ‘positivist’ or ‘interpretivist’. In reference to one of the most widely referred to educational research methods textbooks on the market—namely Research Methods in Education by Cohen, Manion, and Morrison—this paper demonstrates the misconception of science in operation and the perversely false dichotomy that has become enshrined (...) in educational research. It then advocates a new approach, and suggests that the fixation with ‘science’ versus ‘non-science’ is counterproductive, when what is actually required for good inquiry is a critical approach to knowledge claims. (shrink)

The din and deadlock of public life in America--where insults are traded, slogans proclaimed, and self-serving deals made and unmade--reveal the deep disagreement that pervades our democracy. The disagreement is not only political but also moral, as citizens and their representatives increasingly take extreme and intransigent positions. A better kind of public discussion is needed, and Amy Gutmann and Dennis Thompson provide an eloquent argument for "deliberative democracy" today. They develop a principled framework for opponents to come together on moral (...) and political issues.Gutmann and Thompson show how a deliberative democracy can address some of our most difficult controversies--from abortion and affirmative action to health care and welfare--and can allow diverse groups separated by class, race, religion, and gender to reason together. Their work goes beyond that of most political theorists and social scientists by exploring both the principles for reasonable argument and their application to actual cases. Not only do the authors suggest how deliberative democracy can work, they also show why improving our collective capacity for moral argument is better than referring all disagreements to procedural politics or judicial institutions. Democracy and Disagreement presents a compelling approach to how we might resolve some of our most trying moral disagreements and live with those that will inevitably persist, on terms that all of us can respect. (shrink)

Popper’s theory of learning is sometimes met with incredulity because Popper claims that there is no transference of knowledge or knowledge elements from outside the individual, neither from the physical environment nor from others. Instead, he claims that we can improve our present theories by discovering their inadequacies.The intent of this article is not to persuade educators to adopt Popper’s approach uncritically to build their professional knowledge. Rather, it presents a discussion on the need for teachers to adopt a critical (...) approach in eliminating what is inadequate and preserve what is adequate by modifying or abandoning whatever traditions or practices that are inadequate to improve their teaching practice. Popper claims that knowledge advances by searching for and eliminating error contained in our theory. In other words, we can improve our present theories by finding out their inadequacies. (shrink)

The paper traces the sequence of events which brought Popperian philosophy (including Lakatos) to its position on the issues of excess content, novelty and scientific progress. The general approach is to analyze Popper's and Lakatos's positions on these issues as an appropriate response to a particular philosophical problem situation in which they found themselves. The paper closes with a discussion of how these issues relate to economics and economic methodology.

Abstract‘Critique’ means the questioning judgement of human actions, particularly with reference to a criterion of judgement that is inseparable from the judged state of affairs but is dependent on a decision of the person judging. Informative judgements of a state of affairs contain two relevant components, one concerned with recognition of the objects of judgment, the other concerned with their evaluation. This evaluation is not directly extractable from that state of affairs, but the quality of the evaluation does depend in (...) part upon the quality of its explanation. Thus, when the content-description is flawed, the evaluation is affected by the flawed description. The phrase ‘the domestication of critique’ refers to the successful attempts that have been made to cause critics to neglect the truth claims of the judgement in favour of normative dominant interests. Domesticated critique is not concerned with the testing but rather with the justification or interpretation of a state of affairs. Domesticated critique does not depend on the quality of the argument but rather on whether the critique succeeds in legitimating dominant interests and immunising them against undomesticated critique. The educational relevance of the domestication of critique lies in the fact that a critical education which is domesticated will alleviate the need for overt repression on the part of dominant interests in favour of a particular view of the world and replace it with the semblance of a critical attitude that in fact reinforces the existing order through apparently rational means. Education based on domesticated critique can have no radical implications. (shrink)

To improve our methods of rational inquiry and decision-making we need to recognize that such methods should guide but not fully determine the choices of individuals. Failure to acknowledge the essential incompleteness of rational methods made the methods of Classical Rationalism quite impractical and opened them to skeptical refutation. Mitigated Skepticism and Fideism failed to correct the error, and as a result put undesirable limits on rational inquiry. When the guiding character of rational methods is recognized, existing methods of scientific (...) research of personal and social decision-making can themselves be rationally assessed and improved. Viewing rational methods as guides thus opens a whole field of inquiry, the inquiry into what rational methods are most useful for specific purposes and in specific situations. (shrink)

In September 2007, more than 100 philosophers came to Prague with the determination to approach Karl Popper's philosophy as a source of inspiration in many areas of our intellectual endeavor. This volume is a result of that effort.

Popper's methodology does not entail any playing down of the various indispensible distinctions such as the distinction between knowing and guessing, the distinction between myth and science, the distinction between the observational and the theoretical, and between the vernacular and technical sublanguages or technical vocabulary. By avoiding both the totalization that led to the foundationalist position and the scepticist reactions to these frustrated foundationalist hopes, Popper's methodology makes it possible to combine fallibilism with a realist view of theories. It combines (...) the perennial willingness to re-examine positions, statements, etc. with the claim that a particular theory (as an item of knowledge in the objective sense) constitutes cognitive progress over its rivals. However, some of his formulations have been deliberately provocative and in this way have given rise to certain misgivings about possible paradoxical implications, even in philosophers congenial with Popper's approach. The concept of knowledge in the objective sense is, of course, an explicatum which Popper proposes primarily for use in methodology and epistemology. The concept is an expression of the acknowledgment of fallibility in principle. The phrasing that ‘knowledge is conjectural’ or ‘knowledge is fallible’, even when it refers to knowledge in the objective sense, is but an abbreviation for: since our methods for ascertaining the truth-value of a particular statement about empirical reality are fallible in principle, there cannot be any certain knowledge about reality. In everyday life and in politics tolerance will be possible to the extent to which the recognition of this fallibility is more than a declaration. (shrink)

Abstract The market is sometimes thought to be a largely neutral means for coordinating cooperation among strangers under complex conditions because it is, as Hayek noted, a ?spontaneous order.? But in fact the market actively shapes the kinds of values it rewards, as do other spontaneous orders. Recognizing these biases allows us to see how such orders impinge on one another and on other communities basic to human life, sometimes negatively. In this way we may come to acknowledge the inevitability (...) of placing limits on spontaneous orders. (shrink)

Existing solutions to the epistemic regress problem, and the theories of justification built upon them, are inadequate, for they fail to diagnose the root source of the problem. The problem is rooted in our attachment to a pernicious dogma of modern epistemology: the idea that a judgement must be supported by some kind of reason or evidence to be justified. The epistemic analogue of the doctrine of original sin, this idea renders every judgement in need of redemption – guilty until (...) shown to be innocent – distorting our understanding of reason at a very deep level, and preventing us from conceptualizing a satisfactory solution to the problem. If we opt for a more context–sensitive mechanism for assigning default epistemic status, however, we get a more plausible picture of justification, an epistemology more in tune with epistemic practice, and an elegant solution to the regress problem. (shrink)

I take pseudoscience to be a pretence at science. Pretences are innumerable, limited only by our imagination and credulity. As Stove points out, ‘numerology is actually quite as different from astrology as astrology is from astronomy’ (Stove 1991, 187). We are sure that ‘something has gone appallingly wrong’ (Stove 1991, 180) and yet ‘thoughts…can go wrong in a multiplicity of ways, none of which anyone yet understands’ (Stove 1991, 190). Often all we can do is give a careful description of (...) a way of pretending, a motivation for pretence, a source of pretension. In this chapter I attempt the latter. We will be concerned with the relation of conviction to rational belief. I shall be suggesting that the question of whether an enquiry is a pretence at science can be, in part, a question over the role of conviction in rational belief, and that the answer is to be found in the philosophical problem of the role of values in rational belief. (shrink)

Extremists who have been well educated in science are quite common, but nevertheless puzzling. How can individuals with high levels of scientific education fall prey to irrationalist ideologies? Implicit assumptions about rationality may lead to tremendous and conspicuous developments. When correction of social deficits is seen as a pressing problem, it is quite common that individuals conclude that some religious or political system contains the all-encompassing answer, if only it is applied with sufficiently high standards. Implicit assumptions about rationally high (...) standards often demand consistency, system and justification. The strict application of these standards to political and/or religious systems leads quite readily to extremism. J. L. Talmon has shown how the rationality of the Enlightenment led to intolerance, dictatorship and torture. The Enlightenment view of rationality can also encourage irrationalist ideologies and extremism: it leads individuals to conclude that various religions and/or political systems contain all encompassing answers, if only they are systematic, coherant and justified. Alternative theories of science and rationality, which view rationality as critical, partial, and progressive, and which seek to improve imperfect standards, can help avoid the unintended support of extremism rendered by established views of rationality. Unfortunately such theories meet enormous resistance: they call into question well-established canonical doctrines. (shrink)

EVOLUTIONARY EPISTEMOLOGY, THEORY OF RATIONALITY, AND THE SOCIOLOGY OF KNOWLEDGE by Gerard Radnitzky and W. W. Bartley, III La Salle, Ill.: Open Court, 1987. 475 pp., $39.95, $14.95 (paper).

Popper is well known for rejecting a logic of discovery, but he is only justified in rejecting the same type of logic of discovery that is denied by consequentialism. His own account of hypothesis generation, based on a natural selection analogy, involves an error-eliminative logic of discovery and the differences he admits between biological and conceptual evolution suggest an error-corrective logic of discovery. These types of logics of discovery are based on principles of plausibility that are used in the generation (...) as opposed to the preliminary evaluation of hypotheses. The normative relevance of these principles is grounded in the distinction between strategic and definitory rules. (shrink)

While developing his theory of world 3, Popper rejects two claims made by Plato: first, that the inhabitants of world 3, ideas, are a source of ultimate explanation, a divine revelation of truth, and second, that these ideas are unchanging. I will rehabilitate the second claim. Man does not construct world 3 by creating his theories, nor is it a source of ultimate truth. Instead, world 3 is discovered by man, and it destroys some of his theories: destructive Platonism. I (...) discuss the impact of the modified position on the Grundlagenstreit in mathematics, taking into account Gillies’s constructive Aristotelianism. I then turn to the philosophy of computers and discuss how destructive Platonism relates to computers and the Internet. In particular, I criticize Popper’s claim that computers are nothing but elaborate pens as too pessimistic and incautious, and the fashionable “singularity” theory as too optimistic and at the same time too fatalistic. In my closing remarks, as an antidote against both views, I provide a more modest and reasonable speculation about the ultimate goal and meaning of life. (shrink)

The author characterizes the model of rationality devised by critical rationalism in opposition to the classic model of rationality and as an alternative to this. He illustrates and criticizes the trichotomous theory of knowledge which, going back to Max Scheler, is received in a secularized version by Habermas and Apel, also under the influence of the hermeneutic tradition of Heidegger and Gadamer and of the so-called “critical theory” of Max Horkheimer and Theodor Adorno. The author criticizes historicism as it expects (...) to be an alternative to naturalism and not to make use of the method based on scientific laws. The author proposes as an example of technological social science the model developed in economics starting from Adam Smith. With regard to legal theories, natural law is rejected because of its sociomorphic cosmology. It is proposed that legal science as social technology has two parts. One part aims at efficient interpretations of valid law (for the space-time region concerned) and a second part aims at the construction of efficient norms for the modification of valid law by legislation. (shrink)