Abstract
Taking up Paul Boghossian's important distinction in Fear of Knowledge [1], we can distinguish between two forms of social constructivism. According to the first, there are no facts that are independent of the kind of theory (or, as a Wittgensteinian would say, "language game") we choose to describe them. According to the second, less radical and at first sight more plausible, it is only the facts of a certain category, those that have to do with what constitutes a justified or rational belief, that are socially dependent and, therefore, relative: our beliefs may be justified by data that are not necessarily the result of a construction, but what does or does not constitute relevant and probative data for the adoption of a belief necessarily is. The consequence of this is a blurring of some of the most fundamental distinctions on which our culture has hitherto seemed to rest, such as those we are accustomed to making between science and religion, science and morality, science and politics, science and philosophy, science and aesthetics, etc. There is no reason why this should not be the case. There is no reason to continue believing that a scientific disagreement has a fundamentally different nature from that of a moral, political or aesthetic disagreement, and is resolved in an equally different way, namely by the application of standards that can be described as "rational" and "objective". As Rorty puts it, "what could show that the Bellarmine-Galileo [scientific] dispute is 'of a different species' from the Kerenski-Lenin [political] dispute, or the [aesthetic] dispute between the Royal Academy and Bloomsbury in the 1920s? [2] "