During the last few years, several sociological accounts of scientific consensus appeared in which a radically skeptical view of cognitive consensus in science was advocated. Challenging the traditional realist conception of scientific consensus as a sui generis social fact, the radical skeptics claim to have shown that the traditional historical sociologist's supposedly definitive account of scientific consensus is only a linguistic chimera that easily can be deconstructed by the application of different interpretive schema to the given data. I will argue (...) in this article that such an idealistic conception of scientific consensus results from the radical skeptics' failure to take into account the following three factors that are central to the historical sociologist's narrative account of consensus formation: the "judgmental" character of the reconstruction of scientists' beliefs, the hierarchical nature of the consensus change in science, and the importance of the "temporal dimension" in the explanation of scientific consensus formation. To substantiate these three points, I will draw extensively on two recent historical-sociological studies of scientific consensus formation. (shrink)

Given the complexity of most phenomena, we have to delegate much epistemic work to other knowers and we must find reasons for relying on these specific knowers and not others. In our societies, these other knowers are often called experts and we rely on their epistemic authority more and more. For many complex phenomena such as climate change, genetically modified crops, and immunization, the experts that are called upon are scientific experts. For that reason, finding good reasons and justification for (...) deferring to their knowledge is of paramount societal importance. As we shall see, many have analyzed this epistemic dependence on scientific experts and have tried to show in what contexts are there good... (shrink)