 Kendig and Grey (2021) are also critical of purely epistemic approaches to natural kinds. They accept that there is value to epistemology first accounts of natural kinds in so far as they highlight the epistemic value of natural kind classifications to scientists. Nevertheless, they argue that doing this successfully requires accurate metaphysical presuppositions. Their argument focuses on Slater’s HPC view of natural kinds to expose why metaphysical presuppositions are necessary for our categorisation practices. They claim that it is not possible to evaluate the stability of a cluster of properties without taking stock of the metaphysical picture used to account for that stability