The aim of this paper is to show that we can deny that reality is neatly segmented into natural kinds and still give a plausible view about what science is supposed to do -- and the way science in fact works does not rely on the dubious metaphysical assumption that reality is segmented into natural kinds. The score is simple: either there are natural kinds or there aren't. The former view has been the default position in mainstream analytic metaphysics and philosophy of science. I want to put the latter on the table as a metaphysically and scientifically plausible alternative.