In this paper, I explore the question of whether the expected consequences of holding a belief can affect the rationality of doing so. Special attention is given to various ways in which one might attempt to exert some measure of control over what one believes and the normative status of the beliefs that result from the successful execution of such projects. I argue that the lessons which emerge from thinking about the case ofbelief have important implications for the way we (...) should think about the rationality of a number of other propositional attitudes,such as regret, desire, and fear. Finally,I suggest that a lack of clarity with respect to the relevant issues has given rise to a number of rather serious philosophical mistakes. (shrink)

Problems of scientific cosmology only rarely occur in the works of Karl Popper. Nevertheless, it was a subject that interested him and which he occasionally commented on. What is more important, his general claim of falsifiability as a criterion that demarcates science from non-science has played a significant role in periods of the development of modern physical cosmology. The paper examines the historical contexts of the interaction between cosmology and Popperian philosophy of science. Apart from covering Popper’s inspiration from Einstein (...) and his views on questions of cosmology, it focuses on the impact of his thoughts in two periods of controversy of modern cosmology, the one related to the steady state theory and the other to the recent multiverse proposal. It turns out that the impact has been considerable, and continues to be so, but also that the versions of Popperian methodology discussed by cosmologists are sometimes far from what Popper actually thought and wrote. (shrink)

O debate epistemológico ocorrido recentemente sobre o que veio a ser chamado de "o problema do desacordo racional" retomou a discussão, presente no ceticismo antigo, relativa ao significado epistêmico do desacordo. Similar ao cético pirrônico, alguns autores envolvidos no debate contemporâneo argumentaram que em contextos controversos, onde há desacordo sobre alguma questão específica, a atitude racional de ambos os lados do debate é a suspensão do juízo. Para esses autores, tal veredito deve ser estendido a diversas áreas do conhecimento humano, (...) resultando num ceticismo local relativo a tópicos controversos. Este artigo trata dessa problemática no campo científico. Em diversos episódios de controvérsia científica, cientistas exibem desacordos persistentes em que cada lado do debate mantém sua posição em face do desacordo. Nesse contexto, coloca-se a pergunta pela possibilidade do desacordo racional entre cientistas considerados pares epistêmicos. A partir da característica estrutural e dinâmica da ciência, argumenta-se que o desacordo racional entre cientistas é possível. Ou seja, diferente do que sustentam autores contemporâneos, no contexto científico o significado epistêmico do desacordo não é, necessariamente, o agnosticismo. Recent epistemological debate about what came to be called "the problem of rational disagreement" resumed the discussion, present among the ancient skeptics, on the epistemic significance of disagreement. Similar to the Pyrrhonian skeptic, some authors involved in the contemporary debate argued that in controversial contexts, where there is disagreement on some specific matter, the rational attitude of both sides of the debate is the suspension of judgment. For these authors, such a verdict should be extended to several fields of human knowledge, resulting in local skepticism regarding controversial topics. This article addresses this problematic in the scientific field. In several episodes of scientific controversy, scientists exhibit persistent disagreements where each side of the debate maintains his position in the face of disagreement. In this context, the question of the possibility of rational disagreement among scientists considered epistemic peers arises. From the structural and dynamic characteristics of science, it is argued that rational disagreement between scientists is possible. In other words, unlike the claims of contemporary authors, in the scientific context the epistemic significance of disagreement is not, necessarily, agnosticism. (shrink)

The social sciences stand at a strange crossroads. There is a greater need for disciplined inquiry into the issues of policy facing the United States. Yet the incentives in the political system, and in the professional guilds of those performing social research, discourage a close involvement of many prominent social scientists with policy. The political system, fearing an elite imposing its values on society, welcomes the natural scientist who seems to conform to the model of the politically neutral expert who (...) solves problems and addresses “facts”. This model also fits the higher ranks of the civil service, made up of specialists rather than generalist administrators, and the outside advisers serving officials concerned with high policy. Likewise, to protect themselves from changes of partisanship, leading academic social scientists forsake policy concerns for topics within the analytic traditions of Weberian Wertfreiheit. Just as Weber sought to avoid censorship by value neutral scholarship, the modern social scientist disdains the normative concerns of policy in favour of more tractable, morally neutral issues defined as the core of the discipline.The country needs to draw some of the best analytical talent in the social science community into the policy process and advisory roles. Disciplined inquiry cannot be left only to technicians whose professional interests are far removed from political, economic, social and other human sciences. To promote better policy and better social science, we should encourage serious, professionally grounded inquiry into social values, the directions of policy, and the role and proper limits of state power. In the clamour of American politics, there is little danger that policy will be monopolised by an elite group, but considerable danger that debate on policy will be impoverished by the absence of those most knowledgeable about social and economic reality. (shrink)

The article addresses the issue of dynamics of science, in particular of new sciences born in twentieth century and developed after the Second World War (information science, materials science, life science). The article develops the notion of search regime as an abstract characterization of dynamic patterns, based on three dimensions: the rate of growth, the degree of internal diversity of science and the associated dynamics (convergent vs. proliferating), and the nature of complementarity. The article offers a conceptual discussion for the (...) argument that new sciences follow a different pattern than established sciences and presents preliminary evidence drawn from original data in particle physics, computer science and nanoscience. (shrink)

In the pursuit of researches and in the reporting of their results, the individual scientist as well as the community of fellow professionals rely implicitly on the researcher embracing the habit of truthfulness, a main pillar of the ethos of science. Failure to adhere to the twin imperatives of candor and integrity will be adjudged intolerable and, by virtue of science’s self-policing mechanisms, rendered the exception to the rule. Yet both as philosophical concepts and in practice, candor and integrity are (...) complex, difficult to define clearly, and difficult to convey easily to those entering on scientific careers. Therefore it is useful to present operational examples of two major scientists who exemplified devotion to candor and integrity in scientific research. (shrink)

An interdisciplinary fusion between the philosophy of science and the teaching of science can help to eradicate the disciplinary rigidity entrenched in both. In this paper I approach the history of sciencethematically, identifying general themes which transcend the boundaries of individual disciplines. Such conceptual themes can be used as a basis for an interdisciplinary introduction to university science, encouraging certain important cognitive skills not exercised during the disciplinary training emphasised in traditional approaches. Courses which teach themes such as conservation, randomness, (...) and holism/reductionism have already proved successful, and these innovations should encourage philosophers and historians to explore the exciting new possibilities which arise from stepping outside the confines of a single discipline. (shrink)