Abstract

The idea that there is incommensurability in science has been controversial since its popularization by Thomas Kuhn and Paul Feyerabend. While incommensurability in science does have significant implications for understanding science and its development, much of the controversy about incommensurability appears to be at least in part due to a lack of clarity about exactly what is being claimed, what that claim implies, and how the claim is justified. This can easily be seen in recent literature, which has continued to struggle to delineate a coherent account of incommensurability in science, with some opponents attempting to undercut its legitimacy entirely, and others attempting to accept it in some weakened form, so as to downplay its significance for our understanding of science. For this reason, a clear, precise and unambiguous statement of incommensurability, its causes, consequences and implications may help to demystify something that has proven to be especially difficult to pin down. The remainder of the paper attempts to explain much of the confusion surrounding incommensurability on the basis of metaincommensurability, in an attempt to expose the exact nature of the relationship between incommensurability and scientific realism more clearly.