What is my thesis? It is not that radical experimentation by the state, rather than liberal democracy, is more in accord with the spirit and logic of Popper’s ‘revolutionary’ epistemology. It is the opposite criticism, that full anarchic libertarianism (individual liberty and the free market without any state interference) better fits Popper’s epistemology and scientific method.

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)

In a paper entitled "Revolution in Permanence", published in the collection "Karl Popper: Philosophy and Problems", John Worrall severely criticised several aspects of Karl Popper's work before commenting that "I have no doubt that, given sufficient motivation, a case could be constructed on the basis of such remarks that Popper had a more sophisticated version of theory production......". Part of Worrall's criticism is directed at a "strawpopper": in his "Darwinian Model" emphasising the similarities and differences between genetic mutation, variation in (...) animal behaviour and the gestation of scientific theories, Popper never stated that tentative scientific conjectures "while more or less random, are not completely blind." He was referring to variation in animal species behaviour, and about tentative scientific conjectures he said nothing, although common sense would indicate that presumably he regarded them as being less blind and less random. In Popper, giving a summary of his "Darwinian Model", he repaired this omission about tentative scientific conjectures by inserting the sentence "On a level of World 3 theory formation they are of the character of planned gropings into the unknown." Recent developments in the field of genetics, Lewis, Korn ) indicate that Popper's intuitions were along the modern lines while Worrall's intuitions are old fashioned. Therefore Popper's "Darwinian Model" remains both viable and fruitful. (shrink)

Hayek a souvent été critiqué pour avoir changé de méthodologie, passant de l’abstraction misesienne à l’empirisme popperien. L’article défend la thèse que Hayek n’a pas changé de position méthodologique et qu’il a, au contraire, toujours défendu l’adaptation des méthodes aux objets d’analyse à partir d’une conception présente dans The Sensory Order. Cette conception, qui le situe dès les années 20 entre celle de Mises et de Popper, peut être qualifiée d’“apriorisme faillibiliste” selon l’expression empruntée à Barry Smith.Hayek has often been (...) taken to task for having allegedly changed his methodological allegiance by discarding Misesian abstraction in favor of Popper’s empiricism. This paper shows that Hayek has not altered his methodological stance but has rather continuously proposed to adapt the methods to the object being analyzed, and so, from an epistemological perspective worked out in The Sensory Order. This conception which locates him between Mises and Popper as early as the 1920s can be dubbed “faillibilistic apriorism”, to use Barry Smith’s felicitous design. (shrink)

Popper's three?world doctrine differs significantly from an earlier position which insisted on a dualism of facts and norms. This dualism, combined with a hostility to that version of psychologism which holds that logical principles are descriptive psychological laws, initially led him to espouse the view that we are free to reject rules of inference as norms shaping our reasoning. However, in some formulations of his recently developed pluralistic epistemology, Popper appears to deny this freedom to the individual. Feyerabend has condemned (...) him for this. My critique conflicts with Feyerabend's, in that I develop an alternative view of the relationship between logic and psychology which retains the compulsive aspect of the third realm, but rejects that version of anti?psychologism which holds that truths of logic do not have normative implications for people's psychological states. More specifically, it is argued that it is logically possible, though logically impermissible, for people to be irrational: the categories of logic are inescapably evaluative and critical. (shrink)

Popper's conception of methodology and its relationship to epistemology is examined, and found wanting. Popper argues that positivist criteria of demarcation fail because they are attempts to discover a difference in the natures of empirical science and metaphysics. His alternative to naturalism is that a plausible criterion of demarcation is a proposal for an agreement, or convention. But this conventionalism about methodology is misplaced. Methodological rules are conventions, but which methodological rules are followed by scientists it is not itself a (...) matter of convention. This casts doubt upon the status of Popper's famous criterion of demarcation. (shrink)

_Popper’s Critical Rationalism_ presents Popper’s views on science, knowledge, and inquiry, and examines the significance and tenability of these in light of recent developments in philosophy of science, philosophy of probability, and epistemology. It develops a fresh and novel philosophical position on science, which employs key insights from Popper while rejecting other elements of his philosophy. Central theses include: Crucial questions about scientific method arise at the level of the group, rather than that of the individual. Although criticism is (...) vital for science, dogmatism is important too. Belief in scientific theories is permissible even in the absence of evidence in their favour. The aim of science is to eliminate false theories. Critical rationalism can be understood as a form of virtue epistemology. (shrink)

Karl Popper’s critique of idealism manifests itself with the application of his method, falsificationism, to metaphysics, epistemology, and social and political philosophy. According to Popper, who identifies himself as a philosophical realist, idealism has emerged as a result of the idea that reality cannot be known by reason and of the search for certainty which is erroneous, and it has begotten two mistaken and detrimental views. These views are historicism, the notion that history has an irresistible course, and holism, (...) the notion that social wholes are organic structures that amount to more than the individuals constituting them. Historicism and holism have become the philosophical underpinnings of closed societies throughout history, such as the totalitarian regimes of the 20th century. Therefore, with a practical leaning, Popper actually takes aim at these pernicious consequences of idealism while criticizing it. In this study, idealism and the contours of Popper’s philosophy are examined, and then Popper’s metaphysical, epistemological, social, and political critiques against idealism are investigated. Keywords: Karl Popper, idealism, historicism, holism, falsificationism. (shrink)

Philosophy of science is seen by most as a meta-discipline – one that takes science as its subject matter, and seeks to acquire knowledge and understanding about science without in any way affecting, or contributing to, science itself. Karl Popper’s approach is very different. His first love is natural philosophy or, as he would put it, cosmology. This intermingles cosmology and the rest of natural science with epistemology, methodology and metaphysics. Paradoxically, however, one of his best known contributions, his (...) proposed solution to the problem of demarcation, helps to maintain the gulf that separates science from metaphysics, thus fragmenting cosmology into falsifiable science on the one hand, untestable philosophy on the other. This has damaging repercussions for a number of issues Popper tackles, from the problem of induction to simplicity of theory and quantum theory. But his proposed solution to the demarcation problem is untenable. Metaphysical assumptions are an integral part of scientific knowledge, inherent in the persistent acceptance of unified theories against the evidence. Once this is appreciated, it becomes obvious that natural philosophy, a synthesis of science and philosophy, is both more rigorous and of greater intellectual value than the two dissociated components we have today. What Popper sought for could come to full fruition. Problems that Popper tackled, from the problem of induction, to the problem of unity of theory, problems of quantum theory, and problems concerning the scope and limits of physics, all receive more adequate resolution within the new, fully-fledged natural philosophy. (shrink)

With his influence on the development of physiology, physics and geometry, Hermann von Helmholtz – like few scientists of the second half of the 19th century – is representative of the research in natural science in Germany. The development of his understanding of science is not less representative. Until the late sixties, he emphatically claimed the truth of science; later on, he began to see the conditions for the validity of scientific knowledge in relative terms, and this can, in summary, (...) be referred to as hypothesizing. Already in the past century, HeImholtz made first approaches to an understanding of science, which were incompatible with his own former position and which pointed to the modern age to an astonishingly large extent. A comparison with Karl R. Popper's logic of research will illustrate how closely he nevertheless approached modern understanding of science. In Popper's logic of research, hypothesizing of scientific knowledge is definitely much more advanced than in Helmholtz's theory of science. What begins vaguely to emerge with Helmholtz has already become an explicitly formulated programme with Popper. Although HeImholtz and Popper are not on a direct line of epistemological development and Popper refers to HeImholtz only rarely and casually, there are in fact surprising points of contact which have not been taken notice of so far and which appear above all if one looks at Helmholtz's understanding of science against the background of Popper's logic of research. (shrink)

Based on a rather simple thesis that we can learn from our mistakes, Karl Popper developed a falsificationist epistemology in which knowledge grows through falsifying, or criticizing, our theories. According to him, knowledge, especially scientific knowledge, progresses through conjectures that are controlled by criticism, or attempted refutations . As he puts it, ‘Criticism of our conjectures is of decisive importance: by bringing out our mistakes it makes us understand the difficulties of the problem which we are trying to solve. This (...) is how we become better acquainted with our problem, and able to propose more mature solutions: the very refutation of a theory ... is always a step forward that takes us nearer to the truth. And this is how we can learn from our mistakes’ . Since criticism plays such a crucial role in Popper's falsificationist methodology, it seems natural to envisage his heuristic as a helpful resource for developing critical thinking. However, there is much controversy in the psychological literature over the feasibility and utility of his falsificationism as a heuristic. In this paper, I first consider Popper's falsificationism within the framework of his critical rationalism, elucidating three core and interrelated concepts, viz. fallibilism, criticism, and verisimilitude. Then I argue that the implementation of Popper's falsificationism means exposing to criticism various philosophical presuppositions that work against criticism, such as essentialism, instrumentalism, and conventionalism; it also means combating what seems a common tendency of humans to be biased towards confirmation. I examine the confirmation bias, to which Popper did not give much attention: its pervasiveness and various guises, some theoretical explanations for it, and the role of teachers in undermining its strength and spread. Finally, I consider the question whether students can and should be taught to use disconfirmatory strategies for solving problems. (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)

Abstract Evolutionary epistemologists from Popper to Campbell have appropriated the Darwinian principle to explain the apparent fit between the world and our knowledge of it. I argue that this strategy suffers from the lack of any principled distinction among various types of elimination. I offer such a distinction and show that there is a species of elimination that is really corrective, that is, which violates the Darwinian principle as Popper understands it.

One of the most deeply entrenched ideas in Popper's philosophy is the analogy between the growth of scientific knowledge and the Darwinian mechanism of natural selection. Popper gave his first exposition of these ideas very early on. In a letter to Donald Campbell, 1 Popper says that the idea goes back at least to the early thirties. 2 And he had a fairly detailed account of it in his "What is dialectic?", a talk given in 1937 and published in 1940: (...) 3 If we want to explain why human thought tends to try out every conceivable solution for any problem with which it is faced, then we can appeal to a highly general sort of regularity. The method by which a solution is approached is .. (shrink)

Popper’s three world doctrine, it has been argued by Peyerahend and Krige, is a rejection of the type of critical dualism of facts and norms articulated in The Open Society. Peyerabend argues further that world 3 acts as a methodological prison designed to restrict the free decision of the individual theoretical scientist. It is my position that Popper's concept of world 3 is not a rejection of critical dualism but rather an attempt to allow for the existence of free (...) normative decisions within the context of a binding tradition. The key to understanding this move is the notion of an objective norm. Specifically I argue that Popper's pluralistic epistemology is based on a traditional many-levelled semantics developed originally to combat psychologism and used now to place the issue of the choice of methodological norms within the framework of a theory of tradition. (shrink)

Karl Popper’s world 3 theory proposes that the products of the human mind can be considered a third world, partially autonomous of the mental and physical worlds, and real, because it can produce effects on both. When he first introduced the idea in 1960, he took even his close colleagues and students by surprise. Yet tracing the development of his idea shows a great deal in Popper’s previous work and thought led up to what seemed his startlingly new (...) proposal. And far from being the philosophy of his dotage, as some sneered, his world 3 proposal, once fully shaped, became a keystone of his thought. (shrink)

Karl Popper defines an ad hoc hypothesis as one that is introduced to immunize a theory from some (or all) refutation but which cannot be tested independently. He has also attempted to explicate ad hocness in terms of certain other allegedly undesirable properties of hypotheses or of the explanations they would provide, but his account is confused and mistaken. The first such property is circularity, which is undesirable; the second such property is reduction in empirical content, which need not be. (...) In the former case, I argue that non-circularity is in any event preferable to non-ad hocness as a necessary condition for a satisfactory explanation or an explanans, as the case may be, and I try to sort out various persistent errors surrounding this comparison. In the latter case, I suggest that Popper is barking up the wrong tree, that important scientific progress sometimes does consist in just such reductions in empirical content as he proscribes. This provides a further reason for not taking ad hoc hypotheses as Popper conceives them to pose the danger for science he believes they do. (shrink)

This article evaluates Karl Popper's contribution to analytic philosophy, and outlines some of the contradictions in his work which make it difficult to locate in any particular tradition. In particular, the article investigates Popper's own claims to be a member of the rationalist tradition. Although Popper described himself as a member of this tradition, his definition of it diverged quite radically from that offered by other supporters of rationalism, like, for example, Mach, Carnap, and the logical positivists of the Vienna (...) Circle. The reason for this was that Popper believed the rationalist tradition, if it were to remain coherent and relevant, needed to overcome the dilemma posed by Hume's problem of induction. Popper believed that this problem rendered conventional understandings of rationalism, science, and inductive reasoning incoherent. This article suggests that Popper's principal contribution to modern philosophy was to reconfigure the rationalist tradition in such a way as to circumvent the problem of induction while preserving the rationalist commitment to reason, rational debate, and objective knowledge. Popper's reconfiguration of the epistemological bases of the rationalist tradition challenged dominant understandings of rationalist and analytic philosophy, and may be appropriately understood as part of a wider move among philosophers like Quine and Putnam to challenge conventional understandings of analytic philosophy, and of what philosophy itself could and could not achieve. It also informed a vision of social and political life (and of the social and political sciences) as rooted in principles of freedom, equality, and rational debate, but which cannot be fit within the traditional ideological landscape. (shrink)

Despite his well‐known deductivism, in his early (unpublished) writings, Popper held an inductivist position. Up to 1929 epistemology entered Popper's reflections only as far as the problem was that of the justification of the scientific character of these fields of research. However, in that year, while surveying the history of non‐Euclidean geometries, Popper explicitly discussed the cognitive status of geometry without referring to psycho‐pedagogical aspects, thus turning from cognitive psychology to the logic and methodology of science. As a consequence of (...) his reflections on the problematic relationship between geometrical‐mathematical constructions and physical reality Popper was able to get over a too direct notion of such a relationship, cast doubts on inductive inference and started conceiving in a new (strictly non‐inductivist) manner the relationship between theoretical and observational propositions. (shrink)

Karl Popper is widely regarded as the twentieth century’s greatest critic of Marxism. This article, based upon his 1942-47 correspondence with Rudolf Carnap, shows that Popper’s critique of scientific socialism had less to do with Marx’s social goals than with the attitudes that Marxists adopted toward their means of achieving them. It also reveals how Carnap, who tried to keep his politics separate from his epistemology, managed to mix the two when refusing to give Popper his wholehearted support in (...) finding both a publisher for The Open Society and Its Enemies and a position that would give him greater opportunities for research. (shrink)

A very brief outline of Popper's methodology.

In this article, a comparative analysis of Karl Popper’s falsifiability theory and Ludwig Wittgenstein’s theory of meaning in the context of the historical-philosophical approach to the problem of new knowledge formation and justification is undertaken. An assumption is made that the constellation of fact is connected with the possibility of the emergence of an epistemological field. Researchers have repeatedly addressed this issue; however, one important detail received no due attention: Popper’s counter-arguments regarding Wittgenstein’s view on semantic paradoxes show (...) the fundamental difference of these philosophers’ views on the sign and the signified, which contributes to the analysis of new knowledge formation. Arguments that concern both early and late periods of Wittgenstein’s philosophy are used in this study. The uncertainty of the demarcation criterion allowed analyzing Wittgenstein’s position as to how and why different rules of inference form different epistemological fields. (shrink)

Meno’s paradox raises serious challenges against most fundamental epistemological quest regarding the possibility of inquiry and discovery. In his response, Socrates proposes the theory of anamnesis and his ingenious distinction between doxa and episteme. But, he fails in his attempt to solve the paradox and some recent responses have also not succeeded in settling it, satisfactorily. We shall argue that epistemological issues approached in a Darwinian spirit offer a therapeutic resolution without rejecting the basic tenets of Plato’s epistemology. Drawing from (...) Popper’s evolutionary theory of knowledge, Darwinism is regarded as a metaphysical research program, rather than using it to collapse Plato’s metaphysics into biology. (shrink)

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)

The critique of the dogmatism of a-priorism from the Popperians suffered from the fact that Popper, too, was moving towards a certain dogmatic derivation. According to the a-priorists, in wanting to protect himself from any would-be-critics who would argue against the dogmatism of his approach, Popper left his philosophical foundation free to the critics. In fighting against German essentialism, he found himself in a position that necessitated the abandonment of either his presupposed anti-essentialism, or his critique of the positivists. Popper's (...) success stems less from his ability to rally the anti-historicist positivists towards the search for scientific foundations, than the fact that he was one of the greatest, if not the greatest, theoreticians of the scientific method, and critic of ideological simplicity. (shrink)

The author submits that Popper's social philosophy rests on seven pillars: rationality (both conceptual and practical), individualism (ontological and methodological), libertarianism, the nonexistence of historical laws, negative utilitarianism ("Do no harm"), piecemeal social engineering, and a view on social order. The first six pillars are judged to be weak, and the seventh broken. In short, it is argued that Popper did not build a comprehensive, profound, or even consistent system of social philosophy on a par with his work in epistemology. (...) Still, he did make some important contributions to the field, such as unveiling the philosophical roots of totalitarianism and defending social engineering against both revolutionists and conservatives. (shrink)

In this paper I intend to thoroughly analyse Karl Popper’s relation to metaphysics. I start with his first writings, where he states the differences between science, pseudoscience and metaphysics. I then describe how his thoughts on the subject evolved to culminate in his reflection on metaphysical research programmes and the need for a revival of natural philosophy. A major concern is Popper’s famous testability criterion to set apart science from non-science. I point at the problems of the conception (...) of metaphysics as non-testable theories and, in order to avoid these problems, I propose to retain nothing but the traditional conception of metaphysics as the general theories about the nature of the world. This leads me to the conclusion that science is not only an empirical task but also, and in a very important sense, a speculative one. (shrink)

Karl Popper's methodology highlights our scientific ignorance: hence the need to institutionalize open‐mindedness through controlled experiments that may falsify our fallible theories about the world. In his endorsement of “piecemeal social engineering,” Popper assumes that the social‐democratic state and its citizens are capable of detecting social problems, and of assessing the results of policies aimed at solving them, through a process of experimentation analogous to that of natural science. But we are not only scientifically but politically ignorant: ignorant of the (...) facts that underpin political debate, which are brought to our attention by theories that, as Max Weber emphasized, can be tested only through counterfactual thought experiments. Public‐opinion and political‐psychology research suggest that human beings are far too unaware, illogical, and doctrinaire to conduct the rigorous theorizing that would be necessary to make piecemeal social engineering work. F.A. Hayek realized that the public could not engage, specifically, in piecemeal economic regulation but failed to draw the conclusion that this was due to a specific type of political ignorance: ignorance of economic theory. (shrink)

This book is about Karl Popper's early writings before he began his career as a philosopher. The purpose of the book is to demonstrate that Popper's philosophy of science, with its emphasis on the method of trial and error, is largely based on the psychology of Otto Selz, whose theory of problem solving and scientific discovery laid the foundation for much of contemporary cognitive psychology. By arguing that Popper's famous defence of the method of falsification as well as his elaboration (...) of an evolutionary theory of knowledge are equally indebted to German psychology, Michel ter Hark challenges the received view of the development of Popper's philosophy. The book concludes with a reinterpretation of Popper's theory of the mind-body problem, emphasizing its contemporary relevance. (shrink)

On the basis of his unpublished thesis ‘Gewohnheit und Gesetzerlebnis in der Erziehung’ 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 Bühler'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)

The author discusses the meaning of the paradox, which rises as a result of the controversy between the principles of scientific ethos (R. Merton) and fallibilism (K. Popper). She argues that the justification of the moral authority of science should not depend on this paradox. The author uses Max Weber’s concept of substantive rationality to consider the idea of social legitimation of science. She argues for understanding expertise as a special mode of scientific knowledge which aims at justifying the authority (...) of science in the society. (shrink)

Summary The present paper constitutes an elaboration of a previous work by one of us which, among other things, proposed some modifications of Popper's tetradic schema. Here, in the first part, we consider critically and develop further these modifications and elaborate on methods which prove more satisfactory for the mapping of the problem solving processes in Physics. We also find the opportunity to make some comments on Physics and on its relation to Mathematics. In the second part, there is an (...) attempt to test the above ideas on the genesis and development of the Special Relativity Theory. In doing this, we concentrate mainly on Einstein's 1905 paper and try to explicitate its relation with the situation Physics found itself in that period as well as to clarify the epistemological status of Einstein's two postulates. (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)

Using the somewhat simple thesis that we can learn from our mistakes despite our fallibility as a basis, Karl Popper developed a non-justificationist epistemology in which knowledge grows through criticizing rather than justifying our theories. However, there is much controversy among philosophers over the validity and feasibility of his non-justificationism. In this paper, I first consider the problem of the bounds of reason which, arising from justificationism, disputes Popper’s non-justificationist epistemology. Then, after examining in turn three views of rationality (...) that are intended to solve this problem, viz. comprehensive rationalism, critical rationalism, and comprehensively critical rationalism, I argue that Popper’s non-justificationism is justified on the ground that it can solve the problem in the form of comprehensively critical rationalism. Finally, I argue that the implementation of such a non-justificationist theory means exposing to criticism various philosophical presuppositions that work against criticism. (shrink)

This paper expounds the central tenets of the Austro-German school of evolutionary epistemology and points out that it conflicts in important aspects with Popper's. The conflict arises because some of the members of the above-mentioned school consider induction to be an absolutely central feature of any evolutionary epistemology. Thus the question arises if Poppers 'method of trial-and-error' is still to be considered to be the evolutionary method. The present author suggests that what is being selected for during scientific evolution is (...) our capacity to apply induction appropriately. We learn when to use induction reliably and when to resort to the most elementary of all methods, the method of trial-and-error. (shrink)

There is a sort of scepticism, or, at least, epistemological pessimism, that is generated by appealing to Darwin's theory of evolution. The argument is that nature, that is the selective pressures of evolution, has clearly fitted us for certain sorts of learning and mundane understanding, directly beneficial in point of individual survival and chances for reproduction. Very likely then, it is argued, nature has not fitted us for arcane intellectual accomplishments remote from, or quite disconnected from, those ends. So, it (...) is suggested, perhaps we cannot understand, perhaps never will understand, because we are not made to understand, such matters as consciousness, its nature and causes, the origins of life, the beginning of the universe, or astro-physics in its more finalist pretensions. Sometimes, taken with the claim that manifestly we do understand some of these things, the argument becomes a reductio, and its exponents claim that consequently Darwinism must be false, or of only limited application. More commonly, however, in ‘naturalized epistemology’, it is made the vehicle of a claim about the limits of science, limits imposed by the evolutionarily derived frailty of human understanding. Popper, the late Popper, is one of the progenitors of naturalized epistemology. I want to ask what Popper's response would be, or ought to be, to this epistemological nihilism conjured out of Darwinism. (shrink)

Popper proposed his theory of objective knowledge to eliminate subjectivist epistemologies. Popper’s objectivism culminated in the theory of the autonomous World 3 characterized by its independence from the subjective factors belonging to World 2. I argue that Popper did not succeed in unifying his idea of the autonomy of knowledge with the requirement of the creative role of the critical subject in cognition. Moreover, his effort to desubjectivize knowledge undermined the vital importance of the critical activity that ensures the (...) dynamism of the growth of knowledge. In this respect, Popper suppressed the most interesting feature of his philosophical contribution. (shrink)

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)

Popper's methodological individualism and the social sciences. Popper's philosophy of social sciences poses a dilemma that arises out of the two theses of methodological individualism and situational logic. In order to find a way out of this dilemma, one must raise the question concerning the epistemological and methodological status of the `laws' of the human sciences. There are indeed `rules' from which human actions depart mostly to a negligible extent, but they remain valid or stay in effect without exception only (...) as far as they are not re-evoked or re-emerge in the consciousness of the agents. The element of truth of methodological individualism lies in the person's capacity to revoke, in principle, the validity of the rules concerning oneself. Situational logic and methodological individualism can thus be reconciled. (shrink)

This article revisits Karl Popper’s falsificationist methodology with respect to three tasks. The first is to illuminate and systematize Popper’s methodological views in light of his core epistemological commitments. A second and related objective is to gauge which aspects of falsificationism should be identified as “conventionalist”—a label that Popper himself uses (albeit with qualifications) but that is compromised by and, thus, stands in need of elucidation because of Popper’s idiosyncratic understanding of conventionalism. Third, by elaborating Popper’s (...) virtue-epistemological, dialogical model of rationality, I show how Popper’s conventionalism, fallibilism, and critical rationalism form a coherent system. This system allows Popper to accord science the status of a privileged source of knowledge—without naïve appeal to authority. My systematization of Popper’s views yields an intrinsically and exegetically more satisfactory reading of Popper’s falsificationism than usual presentations. Thanks to its marked flexibility and methodological liberalism, it bypasses many standard objections but still offers sound and relevant methodological advice. With its “virtue-methodological” thrust, Popper sketches an original and promising approach to methodology, the fertility of which deserves further exploration for contemporary debates. (shrink)

Scholars Karl R. Popper and Thomas S. Kuhn developed new frameworks that helped shape practical science policies and contributed to a greater understanding of the power and limitations of science. Popper did not accept induction as a method of arriving at scientific conclusions and rejected the justification of scientific theories and hypotheses. On the other hand, Kuhn advocated the progress of science and accepted some principles of scientific practices, including law, theory, instrumentation and application. -/- .

While discussing his notion of objective knowledge Popper introduces the idea of dispensability of knowing subjects, the autonomy of knowledge and the argumentative function of language. The main claim of our paper is that, on our view, objective knowledge produced by argumentative interaction is not achieved by dispensing knowing subjects but by differentiating between the play and the strategic levels of argumentation, where a distinction should be drawn between a particular concrete knowing subject engaged in that interaction, say Karl, and (...) an arbitrary one. Moreover, the theory of meaning deployed at the level of plays, the so-called local meaning, provides already some kind of objective knowledge, since it is player-independent and it does not reduce to the purely logical one of the strategy level. In fact, despite our criticism we think that Popper's discussion of the notion objective knowledge still deserves to be reflected on, particularly so in view of new results concerning the formalization of Brouwer’s Creating Subject and the dialogical interpretation of the notion of epistemic assumption. (shrink)

... THIRD WORLD EPISTEMOLOGY L. Jonathan Cohen . Sir Karl Popper's striking hypothesis about a third world of objective knowledge deserves careful scrutiny ...

In Fallibilism Democracy and the Market, Calvin Hayes proposes an original solution to the major meta-theoretical issue in moral philosophy, the is-ought problem, then utilizes it to define and/or solve practical problems in both applied ethics and public policy. The solution and its applications are based on a unified theory of rationality applicable to epistemology, ethics and public policy, predicated on a revised Popperian fallibilism. It is intended as a defense of Karl Popper's political philosophy but only after a substantial (...) revision of its theoretical and meta-theoretical basis. (shrink)

In a famous debate between Thomas Kuhn and Karl Popper, Popper accused Kuhn and Quine of propagating the “Myth of the Framework”: that some broad set of specific background commitments are required for interlocutors to be able to have a fruitful conversation. The Myth of the Framework could be used to argue for a beneficial version of the canon: that training in these shared background commitments allows for the growth of a robust community of inquiry. Popper argues, however, that the (...) position that truth or inquiry can be framework-dependent is a pernicious form of relativism, and undermines the possibility of rational inquiry. I subject Popper’s view to criticism, showing that it can be used to undermine “orthodoxy” and the canon in some ways, but that it props up the canon in others. In closing, the paper examines the connections between Popper’s position on the community of inquiry and standpoint epistemology, and argues for the claim that Popper’s view, to be persuasive, requires a more robust account of how critical inquiry relies on the evaluative capacities of rational agents within a community. (shrink)