The ‘marketplace of ideas’ is an influential metaphor with widespread currency in debates about freedom of speech. We explore a number of ways competition between ideas might be described as occurring in a marketplace and find that none support the use of the metaphor. We suggest that an alternative metaphor, that of the ‘garden of ideas’, may offer more productive insights into issues surrounding the regulation of speech.

In this article the theoretic evolution and the empirical-experimental efforts that have led to the affirmation of the bounded/procedural rationality paradigm are discussed. Moreover, the debate on supporters of the "optimization" approach and supporters of the "bounded/procedural rationality" approach is traced, highlighting the irreconcilability of these two approaches and, in retort, a solid defense against a merely "reductionist" attempt of the innovative context of the Simonian theory. Critically going over the debate on decision dynamics, it becomes clear how, due to (...) the uncertain nature of rational processes, it is impossible to establish the decision-making best way. The imperfect character of individual choice is explained by how the decider identifies a solution that appears satisfying in that moment due to cognitive and temporal limits. (shrink)

At the bottom of all human activities are “values,” the conviction that some things “ought to be” and others not. Science, however, with its immense interest in mere facts seems to lack all understanding of such‘requiredness.’… A science … which would seriously admit nothing but indifferent facts … could not fail to destroy itself.

One of the still unsolved problems in liberal anarchism is a definition of social constituency in positive terms. Partially, this had been solved by the advancements of liberal discourse ethics. These approaches, built on praxeology as a universal framework for social formation, are detached from the need of any previous or external authority or rule for the discursive partners. However, the relationship between action, personal identity, and liberty within the process of a community becoming solely generated from the praxeological a (...) priori remains largely disputed. In order to develop a testable constitutional model, this study revises how the “ontological turn” was introduced into liberal theories and redefines the concept of liberty. Liberty is usually understood as a moral goal or measurement for just actions, as the generative principle of all social existence - individual and interpersonal. For this purpose, the function of performative contradiction within the mechanism of interpersonal “encounter”, as part of the co-generative process of the individual becoming and social formation was explored through the production of a game-based narrative historiography grounded on 19th century life writings. This narrative historiography was developed in the context of Swiss history, with a “design-based” research approach, and resulted in a prototype for networked storytelling through which the transformative learning process could be visible and the negotiation of competing individual visions of the future could be re-enacted. (shrink)

In “Popper, Weber, and Hayek,” I claimed that the economic and political world governed by social democracy is too complex to offer hope for rational social‐democratic policy making. I extrapolated this conclusion from the claim, made by Austrian‐school economists in the 1920s and 30s, that central economic planning would face insurmountable “knowledge problems.” Israel Kirzner's Reply indicates the need to keep the Austrians’ cognitivist argument conceptually distinct from more familiar incentives arguments, which can tacitly reintroduce the assumption of omniscience against (...) which the Austrian economists rebelled. Callahan's Reply illustrates the need to keep in mind the hypothetical, conditional nature of economic arguments. Notturno's Reply changes the subject by asserting the intrinsic value of social‐democratic participation, regardless of its outcomes—even while, like Talisse's Reply, ignoring the evidence that public ignorance and elite dogmatism probably can't be mitigated by more information or by appeals to be open minded. And Hill focuses on the very real imperfections of market and other private‐sphere decision making, without weighing the shortcomings of the political alternatives. Markets and other private‐sphere decision arenas don't have to be perfect for them to improve upon public‐sector processes. In the latter, cognitive demands tend to be much greater, because of the divergence of modern social problems from the conditions that would have faced the hunter‐gatherers whose cognitive apparatus we have inherited. (shrink)

For many, Rorty was a postmodern relativist and Popper was a positivist and Cold War liberal ideologue. The argument developed here rejects such views and explores how Rorty?s work is best understood from a Popperian problem-solving perspective. It is argued that Rorty erred in seeking justification for beliefs, unlike Popper who replaced the search for justification with criticism. Nonetheless, Rorty?s arguments about post-Nietzschean theory and reformism function as important updates to Popper?s arguments about methodological essentialism and piecemeal social engineering, respectively.

The ArgumentTwo dominant models of criticism are identified and analyzed. One is selfconsciously normative. It conceives of criticism as subject to strict logical rules. The other views itself as essentially descriptive and accounts for the critical activity in terms of social factors. In spite of their different origins and purposes, it is argued that both models share a reductionistic thrust, which minimizes the role of the critic qua agent. It is further agreed that neither provides an adequate account of critical (...) activity and its role in science. (shrink)

Bartley’s pancritical rationalism is seen by some as being a refinement of Popper’s critical rationalism. I contest this view and argue that pancritical rationalism is obtained from critical rationalism by removing some of its most important and useful features. The remainder consists of a restatement of some of Popper’s key ideas and an interpretation of others that I attempt to show is not entirely faithful to what Popper says.

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)

The early research of Karl Popper both in psychology and in philosophy of science is described; its basis for his later breakthroughs in the philosophy of science is explained. His debt to Otto Selz’s thought psychology is thereby detailed. Otto Selz’s philosophy of science is then explained, and its conflict with Popper’s early as well as his later views is portrayed. These studies of the conflicting views of Popper’s early views and Selz’s philosophy of science provide the basis for demonstrating (...) the mistakes that Michel ter Hark has made in claiming that the alleged originality of Popper’s views occurred only in the 1970s and are little more than a rehash of Selz’s alleged evolutionary epistemology. (shrink)

The field of information technology is broadened up to the domain of ‘learning’ systems and cybernetics. In covering this extension of the field due recourse is made to the epistemological basis of theory construction. When so comprehended, information technology becomes a philosophical inquiry on a variety of social, scientific and technological issues. A new idea that we refer to as neuro-cybernetics is born. The term neuro-cybernetics is used to delineate the epistemological field of system and cybernetic study. The above-mentioned phenomenological (...) or the epistemic model of a cybernetic and system type is applied to flood control problem in Bangladesh. This example presents an application of the cybernetic model to a physico-human problem. This is the nature of socio-scientific system. In it, organically unifying relations occur between the environment and the human world, with the objective of controlling the perennial problem of floods by using interactive factors. (shrink)

This paper examines the implicit foundations of several theoretical propositions characteristic of the Marxist tradition in sociology. It argues that these propositions derive from self-contradictory critical premises which are paradoxes of Action Theory. Implicit in these premises is an ideal picture of social reality quite different from the one analytically described by Parsons. I suggest that Action Theory can provide conceptual tools needed to address some specific issues characteristic of the Marxist perspective and, moreover, offers a solution to some epistemological (...) problems raised by the authors who endorse the postmodern position in social sciences. (shrink)

University of North Carolina at Greensboro Most approaches to the philosophy of the natural and social sciences are basedon completed scientific investigations. However, there are many importantcases in science in which testing is incomplete. These cases are termed suspendedtrials and are particularly significant in biomedical and allied health fields. Initially,the authors' interest in suspended trials was piqued by a controversialmethod for assisting autistic children known as facilitated communication. Thisarticle examines facilitated communication and other examples of suspendedtrials from the perspective of (...) an economics of science and game theory. Themodel is consistent with recent evolutionary approaches to the philosophy ofthe natural and social sciences and with recent contributions to an economicunderstanding of science. Key Words: clinical trials • innovative therapies • economics of science • suspended trials • facilitated communication • economics of clinical research. (shrink)

The paper analyzes the sacred foundations of Western institutional order, moving from an epistemological, historical and legal–aesthetic perspective. Firstly, it identifies an epistemological theory of complexity which, pursuing Hayek’s theory of complexity, Robilant’s notion of informative–normative systems, Popper’s theory of the Worlds, and Dupuy’s theory of endogenous fixed point, will conclusively lead to presenting the hypothesis of World 0 as the World of the foundation of legal thinking, the home of the sacred and the aesthetic. Secondly, it identifies the axiological (...) character of the legal aesthetic as a discipline, a topic that will be taken up in relation to the work of the French historian of canonical law and psychoanalyst Legendre, starting from the analysis of a legal/historiographical context (Corpus Iuris Civilis, Corpus Iuris Canonici, Hobbesian Leviathan, Kelsenian Grundnorm). Thirdly, following Ellul’s thought on secularization, the idea that we now live in a secularized, lay society, lacking in the sacred is revealed as a sort of illusion, the creation of a myth of modernity, only apparently rational. Finally the paper proposes as the task of legal theory the identification of the system of “nomograms” in which the normative message is organized, according to a nonreductionistic approach that forces legal theory to recognize the plurality of the iconic forms of the normative message. The “nomograms” respond to the need of extending the field of legal science to phenomena that the positivist theory of law does not consider important, but which the process of evolution of contemporary society imposes. (shrink)

The primary purpose of this paper is to argue that biologists should stop citing Karl Popper on what a genuinely scientific theory is. Various ways in which biologists cite Popper on this matter are surveyed, including the use of Popper to settle debates on methodology in phylogenetic systematics. It is then argued that the received view on Popper—namely, that a genuinely scientific theory is an empirically falsifiable one—is seriously mistaken, that Popper’s real view was that genuinely scientific theories have the (...) form of statements of laws of nature. It is then argued that biology arguably has no genuine laws of its own. In place of Popperian falsifiability, it is suggested that a cluster class epistemic values approach (which subsumes empirical falsifiability) is the best solution to the demarcation problem between genuine science and pseudo- or non-science. (shrink)

The variation and selection form of explanationcan be prescinded from the evolutionary biologyhome ground in which it was discovered and forwhich it has been most developed. When this isdone, variation and selection explanations arefound to have potential application to a widerange of phenomena, far beyond the classicalbiological ground and the contemporaryextensions into epistemological domains. Itappears as the form of explanation most suitedto phenomena of fit. It is also found toparticipate in multiple interestingrelationships with other forms of explanation. We proceed with (...) an examination of multiplekinds of phenomena, interrelationships withother members of the family of forms ofexplanation, and some novel applications evenwithin the home ground of evolutionary biology. (shrink)

In our century, the philosophy of science has been overshadowed by two towering figures: Popper and Wittgenstein, both Viennese emigrants, who have become subjects to the Queen (cf., e.g., Radnitzky [1987a] Entre Wittgenstein et Popper ... ). The discussion has been structured by two great controversies: from the 30s Popper versus logical positivism (or falsificationism versus verificationism/probabilism), and from the 60s 'the new philosophy of science' versus Critical Rationalism. (Exemplary contributions to thes two controversies can be found, e.g., in the (...) two collections Radnitzky and Andersson (eds.) [1978], Progress... Science, and [1979], Structure...Science.) Wittgenstein's Tractatus has been the idee directrice of the Vienna Circle and its successor, Logical Empiricism. The cynosure of 'the new philosophy of science' is Wittgenstein's later philosophy as presented, in particular, in his Philosophical Investigations. If you apply it to the philosophy of science, you will view 'normative' methodology as a counterpart of ideal language philosophy, and hence regard any methodological prescriptions as unrealistic and claim that philosophy of science cannot do more than describe the practice of science, preferably in terms of case studies culled from the history of science. You will be placed on the road to relativism (Kuhn, Feyerabend, Hiibner, and others). An interesting variant of relativism is Stegmiiller's attempt, with the help of the formal methods developed by Sneed, to give Kuhn's results a more exact form (Sneed, Stegmiiller, Moulines, Mostarin)-what Feyerabend has called 'the Sneedification of science'. Today, departments of philosophy of science are dominated by philosophers who either sympathize with logical empiricism or with 'the new philosophy of science'. Critical Rationalism has an outsider position, but enjoys the sympathy of many scientists (Bartley [1989], Unfathomed Knowledge .. .; see also Bartley [198 7b], 'Philosophy of biology ... ', and Munz [1987], ' ... the mirror of Rorty'). (shrink)