Popper: Philosophy of Science, Misc

Susan Haack criticises the US courts' use of Karl Popper's epistemology in discriminating acceptable scientific testimony. She claims that acceptable testimony should be reliable and that Popper's epistemology is useless in discriminating reliability. She says that Popper's views have been found acceptable only because they have been misunderstood and she indicates an alternative epistemology which she says can discriminate reliable theories. However, her account of Popper's views is a gross and gratuitous misrepresentation. Her alternative epistemology cannot do what she claims (...) for it. The courts should not be concerned with reliability and, insofar as they use the term 'reliability,' it should be construed in a procedural rather than a substantive sense. Since Popper's epistemology gives something like a characterisation of science at its best, the courts should continue to invoke Popper's theories in their discrimination of acceptable testimony. (shrink)

Suporterii lui Popper au susținut că cele mai multe critici se bazează pe o interpretare neînțeleasă a ideilor sale. Ei afirmă că Popper nu ar trebui interpretat în sensul că falsificabilitatea este o condiție suficientă pentru delimitarea științei. Unele pasaje par să sugereze că el o consideră doar o condiție necesară. Alte pasaje ar sugera că, pentru ca o teorie să fie științifică, Popper impune (pe lângă falsificabilitate) și alte teste, și că rezultatele negative ale testelor sunt acceptate. DOI: 10.13140/RG.2.2.22639.79521.

K. R. Popper distinguished between two main uses of logic, the demonstrational one, in mathematical proofs, and the derivational one, in the empirical sciences. These two uses are governed by the following methodological constraints: in mathematical proofs one ought to use minimal logical means (logical minimalism), while in the empirical sciences one ought to use the strongest available logic (logical maximalism). In this paper I discuss whether Popper’s critical rationalism is compatible with a revision of logic in the empirical sciences, (...) given the condition of logical maximalism. Apparently, if one ought to use the strongest logic in the empirical sciences, logic would remain immune to criticism and, thus, non-revisable. I will show that critical rationalism is theoretically compatible with a revision of logic in the empirical sciences. However, a question that remains to be clarified by the critical rationalists is what kind of evidence would lead them to revise the system of logic that underlies a physical theory, such as quantum mechanics? Popper’s falsificationist methodology will be compared with the recently advocated extension of the abductive methodology from the empirical sciences to logic by T. Williamson, since both of them arrive at the same conclusion concerning the status of classical logic. (shrink)

The acrimony between Karl Popper and Ludwig Wittgenstein has become the stuff of philosophical legend (Edmonds and Eidinow 2002). In the mid-20th century, they offered sharply divergent ideas about the best path for philosophy going forward. While Popper remains a mainstay in introductory courses in the philosophy of science, his "critical rationalist" approach to philosophy has remained marginal with analytic philosophy, especially when compared to the overwhelming influence of Wittgenstein. To what extent does this difference in perceived stature track genuine (...) differences in philosophical contributions? In this book, one of Popper's most eminent students, Joseph Agassi, attempts to provide an answer. He argues that Wittgenstein's contributions are much more modest than is sometimes claimed and that his influence on subsequent analytic philosophy has not always been benign. Agassi provides a unique and welcome perspective on these issues, and there's much of interest in the book, even though Agassi's interpretation of Wittgenstein may not convince those not already sympathetic to his point of view. (shrink)

Natural science, properly understood, provides us with the methodological key to the salvation of humanity. First, we need to acknowledge that the actual aims of science are profoundly problematic, in that they make problematic assumptions about metaphysics, values and the social use of science. Then we need to represent these aims in the form of a hierarchy of aims, which become increasingly unproblematic as one goes up the hierarchy; as result we create a framework of relatively unproblematic aims and methods, (...) high up in the hierarchy, within which much more problematic aims and methods, low down in the hierarchy, may be improved as scientific knowledge improves. Then, we need to generalize this hierarchical, aims-and-methods-improving methodology so that it becomes fruitfully applicable to any worthwhile endeavour with problematic aims. Finally, we need to apply this methodology to the immensely problematic task of making progress towards as good a world as feasible. (shrink)

Popper: yet again Content Type Journal Article Category Book Review Pages 1-4 DOI 10.1007/s11016-012-9669-y Authors Sorin Bangu, Department of Philosophy, University of Illinois, Urbana, IL 61801, USA Journal Metascience Online ISSN 1467-9981 Print ISSN 0815-0796.

The problem of rational prediction, launched by Wesley Salmon, is without doubt the Achilles heel of the critical method defended by Popper. In this paper, I assess the response given both by Popper and by the popperian Alan Musgrave to this problem. Both responses are inadequate and thus the conclusion of Salmon is reinforced: without appeal to induction, there is no way to make of the practical prediction a rational action. Furthermore, the critical method needs to be vindicated if one (...) pretends that its application is suitable for the preference of a hypothesis. I argue that the nature of this vindication is such that it may be applied also to induction. Thus, to be a popperian is a good reason also to be an inductivist. (shrink)

It is often claimed that the conclusion of a deductively valid argument is contained in its premises. Popper refuted this claim when he showed that an empirical theory can be expected always to have logical consequences that transcend the current understanding of the theory. This implies that no formalisation of an empirical theory will enable the derivation of all its logical consequences. I call this result ‘Popper-incompleteness.’ This result appears to be consistent with the view of deductive reasoning as a (...) process of unfurling the content of the premises; but I suggest that the result about validity impugns this theory of reasoning. (shrink)

The demise of the Superconducting Supercollider is often explained in terms of the strain that it placed on the federal budget of the United States, and change in national security interests with the end of the Cold War. Recent work by Steve Fuller provides a framework to re-examine this episode in epistemological terms using the work of Kuhn and Popper. Using this framework, it is tempting to explain the demise as resulting from the overly Kuhnian character of its proponents, who (...) supposedly argued for its construction by appealing to the importance of testing the predictions of a specific paradigm. On this reading, the SSC case appears as an example of how Kuhn’s paradigm-driven view of science was invoked to keep science closed and autonomous from society. I argue that the SSC episode should not be viewed as giving support to the displacement of Kuhn’s view of science for Popper’s, and that such a displacement is detrimental to the project of integrating discussion on science into the public sphere. Drawing upon Rouse and Wimsatt, I argue that understanding paradigms as practices blunts some criticisms against Kuhn’s model, and that his model should play an important epistemological role in the aforementioned project.Keywords: Thomas S. Kuhn; Karl Popper; Steve Fuller; Big Science; Superconducting Supercollider. (shrink)

In the interwar period there was a significant school of thought that repudiated Einstein's theory of relativity on the grounds that it contained elementary inconsistencies. Some of these critics held extreme right-wing and anti-Semitic views, and this has tended to discredit their technical objections to relativity as being scientifically shallow. This paper investigates an alternative possibility: that the critics were right and that the success of Einstein's theory in overcoming them was due to its strengths as an ideology rather than (...) as a science. The clock paradox illustrates how relativity theory does indeed contain inconsistencies that make it scientifically problematic. These same inconsistencies, however, make the theory ideologically powerful. The implications of this argument are examined with respect to Thomas Kuhn and Karl Popper's accounts of the philosophy of science. (shrink)

In this chapter, I argue that Karl Popper was a communitarian philosopher. This will surprise some readers. Liberals often tout Popper as one of their champions. Indeed, there is no doubt that Popper shared much in common with liberals. However, I will argue that Popper rejected a central, though perhaps not essential, pillar of liberal theory, namely, individualism. This claim may seem to contradict Popper's professed methodological individualism. Yet I argue that Popper was a methodological individualist in name only. In (...) fact, methodological individualism faded from Popper's vocabulary as he moved institutions and situational analysis more firmly to centre-stage. Popper's focus on institutions and situations constitutes what I call his communitarianism. If my interpretation is correct, then theorists in the socio logy of scientific knowledge and communitarian epistemology should reconsider their long-standing distrust of Popper's philosophy. Indeed, they may have much to gain by treating Popper as a friend rather than a foe. (shrink)

In this article I argue that Karl Popper embraced a muitiplist approach to ethics, politics, history, and cultural practices. Although Popper combined metaphysical realism with a hermeneutic approach that had the potential to support a multiplist philosophy of science, a commitment to verisimilitude and to the identification of universal laws required him to adopt a singularist approach to natural science. I suggest, therefore, that Michael Krausz’ description of Popper as a singularist should be qualified’ that Popper’s philosophy of natural science (...) may be identified with singularism but that recognition should be afforded to his multiplist approach to other fields. (shrink)

In the present paper I shall first summarize Popper's criticism of the traditional method of definition, and then go on to comment critically on his own views on the form and function of so-called nominalist definitions.

When philosophers of science speak of a "logic of discovery", what they mean is a systematic method for the generation of scientific hypotheses. The task of this dissertation is to examine arguments for and against a logic of discovery and to defend the possibility of a methodological logic of discovery as opposed to a psychological or epistemic logic of discovery. According to a methodological logic of discovery, there are systematic methods for generating hypotheses that promote the long-term goals of science, (...) such as problem-solving success, probability, truth, or consilience. According to a psychological logic of discovery, there are systematic methods that are actually employed by scientists to generate hypotheses. According to an epistemic logic of discovery, there are systematic methods for generating hypotheses that provide essential justification for such hypotheses. ;The first chapter contains an examination of consequentialism, according to which the only means of justifying a hypothesis is by reference to its empirical consequences. The arguments for consequentialism only threaten an epistemic logic of discovery. The second chapter contains an examination of Laudan's claim that the only rationale for a logic of discovery is epistemic and that there is no epistemic rationale for a logic of discovery. Laudan draws the wrong lesson from the historical shift to consequentialism and his context of pursuit depends upon caricatures of both discovery and justification. The third chapter contains an examination of Popper's attempt to deny a logic of discovery by drawing an analogy between evolution by natural selection and scientific progress, but Popper fails to reject either a psychological or methodological logic of discovery based on this analogy. The fourth chapter contains an examination of Reichenbach's arguments against a logic of discovery, but Reichenbach's version of the discovery/justification distinction is orthogonal to the logic of discovery debate and his defense of induction implies an epistemic logic of discovery. The fifth chapter contains an examination of Hanson's attempt to provide a logic of discovery. Hanson's defense of plausibility as analogy and formal symmetry provides the best prospects for a methodological logic of discovery. (shrink)

The articles in this volume deal with the main inferential methods that can be applied to different kinds of experimental evidence.

Science seems to develop by inducing new knowledge from observation. However, it is hard to find a rational justification for induction. Popper offers one attempt to resolve this problem. Nursing theorists have tended to ignore or reject Popper, often on the false belief that he is a logical positivist (and hence hostile to qualitative research). Logical positivism claims that meaningful sentences containing any empirical content should ultimately be reducible to simple, observation statements. Popper refutes positivism by showing that there are (...) no such simple statements. He is not a positivist. For Popper, the scientist begins with problems and puts forward trial solutions. These are subjected to rigorous testing aimed at falsifying them. A new theoretical position is then reached in which the scientist knows either that the trial solutions are false or that they have not yet been falsified. Science is characterized by the fact that it tests its ideas through attempted falsification. Nonscience tests its ideas through attempted refutation. Nursing theory is a mixture of science and non-science. Popper’s method requires rigorous testing of theory in both realms. As such, some nursing theory should be discarded. Popper’s view faces at least two important criticisms. One is that a scientist can always reject an apparent falsification by instead altering some auxiliary hypothesis (e.g. denying the accuracy of the falsifying observation). Popper can deal with this argument by saying that defence of a theory in this way will eventually break down if the theory is false. The second criticism is that Popper’s method does ultimately draw upon induction. This criticism is true, but his method can be usefully adapted. An adapted from of Popper’s philosophy of science provides a good basis for nursing theory. (shrink)

This paper analyses conceptual change. A rejection of pure experience has prompted philosophers of science to adopt a certain perspective from which to view changes of belief. Popper, Kuhn, and others have analysed conceptual change in terms of problems or anomalies, that is, in terms of contingent reasoning about issues posed in the context of an inherited web of belief. This paper explores a more general analysis of conceptual change in dialogue with these philosophers of science. Because changes of belief (...) are not all changes in scientific belief, we seek to unpack conceptual change in terms of dilemmas, as opposed to anomalies or problems. For a start, the notion of a dilemma has to be broader than that of an anomaly since it purports to apply to conceptual change as a whole, not just the transition from one era of normal science to another. In addition, we should detach the notion of a dilemma from the objectivism of Popper's world-3 problems. (shrink)

A review of Steven Fuller's excellent book. Steve Fuller, professor of sociology at the University of Warwick, argues that, unfortunately for science, Kuhn won this debate. In the wake of Kuhn, science has come to be justified more by its paradigmatic pedigree than by its progressive aspirations. In other words, science is judged by whatever has come to be the dominant scientific community.

The two principal models of design in methodological circles in architecture—analysis/synthesis and conjecture/analysis—have their roots in philosophy of science, in different conceptions of scientific method. This paper explores the philosophical origins of these models and the reasons for rejecting analysis/synthesis in favour of conjecture/analysis, the latter being derived from Karl Popper’s view of scientific method. I discuss a fundamental problem with Popper’s view, however, and indicate a framework for conjecture/analysis to avoid this problem.

An enormous amount of philosophical literature gets published nowadays. Some of it is good; some is fit only for pulping. We get into the habit not so much of reading as of glancing through the torrent that pours down on us. But sometimes special conditions arise. It so happened that I was forced to spend about a month in the hospital. I took with me the book Evolutionary Epistemology and the Logic of the Social Sciences: K. Popper and His Critics (...) [Evoliutsionnaia epistemologiia i logika sotsial'nykh nauk. K. Popper i ego kritiki] . I attentively read it through and without any irony I can say that I felt "legitimate pride and deep satisfaction." Legitimate pride for philosophy and deep satisfaction with the content of the book. And although readers of Problems of Philosophy [Voprosy filosofii] have already had the opportunity of reading a review of this book , I would like to return to it and make in passing a number of points about Popper's philosophy in general. (shrink)

On the basis of his unpublished thesis 'Gewohnheit und Gesetzerlebnis in der Erziehung' (1926-7) a historical reconstruction is given of the genesis of Popper's ideas on induction and demarcation which differs radically from his own account in Unended quest. It is shown not only that he wholeheartedly endorses inductive epistemology and psychology but also that his 'demarcation' criterion is inductivistic. Moreover it is shown that his later demarcation thesis arises not from his worries about, on the one hand, Marxism and (...) psychoanalysis and, on the other hand, Einstein's physics, but rather from his urgent preoccupation with providing pedagogy with a psychological foundation, which has its sources in Karl Buhler's cognitive psychology as well as, surprisingly, Adler's Characterology. Aside from Adler some lesser known psychologists, such as Karl Groos, will also be seen to have played a formative role on Popper's early thinking. (shrink)

Imre Lakatos and Paul Feyerabend initially both accepted Popper's philosophy of science, but then reacted against it, and developed it in different directions. Lakatos sought to reconcile Kuhn and Popper by characterizing science as a process of competing research programmes, competing fragments of Kuhn's normal science. Feyerabend emphasized the need to develop rival theories to facilitate severe empirical testing of accepted theories, but then, as a result of a disastrous mistake, came to hold that theories that are incompatible with one (...) another cannot be compared empirically. He ended up rejecting method in science. All four philosophers, Popper, Kuhn, Lakatos and Feyerabend missed the decisive defect in Popper's philosophy of science: persistent acceptance of unified theories only when endlessly many empirically more successful disunified rivals are available means that physics makes a big, highly problematic metaphysical assumption about the nature of the universe: it is such that some kind of underlying unity exists in nature. We need to adopt a new conception of science. In order to subject this implicit metaphysical conjecture to sustained critical assessment in an attempt to improve it, we need to see science as making a hierarchy of metaphysical assumptions about the knowability and comprehensibility of the universe, these assumptions becoming less substantial and more likely to be true as we ascend the hierarchy. Elements of Popper, Kuhn and Lakatos are to be found in this picture, but it also differs radically from all three. It more closely resembles Einstein's mature views about the nature of science. (shrink)

How did Karl Popper arrive at his theory of science? Popper believed that Einstein’s general theory of relativity and his attitudes of modesty and self-criticism were all important.This paper challenges details in Popper’s account and suggests an alternative interpretation of the formation of his theory. It is held that his disillusionment with Marxism predated and conditioned his understanding of Einstein, and that the liberalism of J. S. Mill may have exercised an influence . Political ideas and practice paved the way (...) for Popper’s philosophy of science. (shrink)

The paper analyses the development of some themes in the contemporary philosophy of science in Italy. Section 1 reviews the dabate on the legacy of neopositivism. The spread of the philosophy of Popper is outlined in Section 2, with particular regard to the problem of the vindication of induction. Section 3 deals with the debate on the incommensurability thesis, while Section 4 examines its consequences on the possible relationships between historical and epistemological studies of science. The last section is devoted (...) to one of the most recent trends in the Italian philosophy of science: the resumption of Aristotelian dialectics. (shrink)

Although Popper rarely examined the “life of the laboratory” , some of his epistemic doctrines reveal important themes about knowledge‐acquisition in the laboratory sciences. In particular, when modern instruments are needed for exploring the subatomic realm, empirical evidence is dispositional in a Popperian sense. Evidence is defined conditionally with respect to a complex system of technological apparatus and theoretical judgments.After summarizing certain elements of Popper's epistemology , the character of observation in the laboratory sciences is explored . A conception of (...) property as capacities is then developed . This conception of property is applicable to empirical studies using modem scientific instruments, as information‐processing systems. (shrink)

Preface This book, based on my doctoral dissertation, is a study in and of critical philosophy. Critical philosophy is committed to finding the limits of ...

If an economist or an economic historian speaks about ethical or moral problems, one should be suspicious. Karl Popper continually repeated that he did not want to preach, and I believe that his deep-rooted distrust of modern philosophical moralists, who usually preach water and drink cognac, led to his not writing a greater work on ethics. Nevertheless he was a moral person, and perhaps we can learn more about his cosmology, his methodology, and about his philosophy in general if we (...) probe into some of the ethical foundations of his life and his thinking. It may become apparent to you that I do not refer primarily to Popper's Open Society and Its Enemies or other works of his political writings alone. In choosing not to do so, it is my intention to demonstrate that all his thinking is deeply rooted in ethics. (shrink)

The Popperian epistemology underlying Levelt's commentary and other aspects of contemporary psychology has limited application and, in particular, does not apply to the creation or development of theory, the main goal of MacKay . This is relevant to Levelt's questions, “What has changed?” and “What is the harvest?”: From a non-Popperian perspective, both changes and harvest are greater than Levelt's commentary would suggest and carry implications for the field at large.

In this critical examination of recent accounts of the nature of science and of its justification given by Kuhn, Popper, Lakatos, Laudan, and Newton-Smith, Banner contends that models of scientific rationality which are used in criticism of religious beliefs are in fact often inadequate as accounts of the nature of science. He argues that a realist philosophy of science both reflects the character of science and scientific justifications, and suggests that religious belief could be given a justification of the same (...) sort. (shrink)

Summary In several places Popper describes a little experiment in which an audience is given the non-specific command ‚Observe!‘ He draws a number of conclusions from this experiment, in particular that observation takes place in the presence of theoretical problems, questions, hypotheses or points of view. The paper argues that while Popper's experiment is instructive, it hardly supports the strong conclusions he draws about the theory-dominance of observation in science. In particular, it is argued that talk of principles of selection (...) which guide us to relevant observations, rather than the host of irrelevant observations of the naive inductivist, is misleading. Rather, it is the goals, aims, motives or interests of an observer that guide observation and these need not always involve a theoretical component. (shrink)

Turing's programme, the idea that intelligence can be modelled computationally, is set in the context of a parallel between certain elements from metamathematics and Popper's schema for the evolution of knowledge. The parallel is developed at both the formal level, where it hinges on the recursive structuring of Popper's schema, and at the contentual level, where a few key issues common to both epistemology and metamathematics are briefly discussed. In light of this connection Popper's principle of transference, akin to Turing's (...) belief in the relevance of the theory of computation for modelling psychological functions, is widened into the extended principle of transference. Thus Turing's programme gains a solid epistemological footing. *I am grateful to Claude Lamontagne and Jean-Pierre Delage for their comments on this paper. (shrink)

Approximationism — science approximates the truth as an ideal — is the view of science implicit in all of Einstein's major works, heralded by Hugo Bergman in Hebrew in 1940 and expressed by Karl Popper in 1954 and 1956. Yet Bergman was not sufficiently clear about it, and even Popper is not - as shown by their not giving up certain remnants of the older views which approximationism replaces, even when these remnants are inconsistent with approximationism. Norare the approximationist theories (...) of these authors satisfactory solutions to all the problems which traditional epistemologies purported to solve. Approxiamtionism still is a program rather than a fully blown theory. (shrink)