The notion of natural kinds has been widely criticized in philosophy of science but also appears indispensable for philosophical engagement with classificatory practices. Rather than addressing this tension through a new definition of “natural kind”, this article suggests materiality as a substitute for naturalness in philosophical debates about scientific classification. It is argued that a theory of material kinds provides an alternative and more inclusive entry point for analyzing classificatory practices, which is specified through an account of “restricted malleability” of (...) materiality and further analyzed as (1) gradual, (2) multi-dimensional, (3) scalable, (4) interactive, and (5) purpose sensitive. (shrink)

Theoreticians that defend a form of realism regarding natural kinds minimally entertain the belief that the world features divisions into kinds and that the natural kind concept is a useful tool for philosophy of science. The objective of this paper is to challenge these assumptions. First, we challenge realism toward natural kinds by showing that the main arguments for their existence, which rely on the epistemic success of natural kinds, are unsatisfactory. Second, we show that, whether they exist or not, (...) natural kinds are expendable when it comes to describing and analyzing scientific explanations accurately. (shrink)

What sort of philosophical work are natural kinds suited for? Scientific realists often contend that they provide the ‘aboutness’ of successful of scientific classification and explain their epistemic utility (among other side hustles). Recent history has revealed this to be a tricky job — particularly given the present naturalistic climate of philosophy of science. As a result, we’ve seen an explosion of different sorts of theories. This phenomenon that has suggested to some that philosophical theorizing about natural kinds has reached (...) a sort of ‘scholastic twilight’ and that the concept (or family of concepts) has outlived its utility: perhaps there’s no work natural kinds are suited for. While I think this pessimistic take is unwarranted, I will argue that it is worth rethinking the roles to which a reasonably naturalistic account of natural kinds can be fruitfully put. Natural kinds deserve a shorter work week. (shrink)

The tradition of natural kinds has shaped philosophical debates about scientific classification but has come under growing criticism. Responding to this criticism, Reydon and Ereshefsky present their grounded functionality account as a strategy for updating and defending the tradition of natural kinds. This article argues that grounded functionality does indeed provide a fruitful philosophical approach to scientific classification but does not convince as a general theory of natural kinds. Instead, the strengths and limitations of Reydon and Ereshefsky’s account illustrate why (...) it is time to move beyond general definitions of “natural kind” and experiment with new philosophical frameworks. (shrink)

We are currently in the midst of what I call biology’s Einstein moment. This is the rejection of absolute biological history, the idea that there is an invariant, privileged biological history against which other histories are measured or deviate from. Instead, biologists must specify theoretically and empirically motivated frames of lineal reference. This is already informing and advancing biological practice, theory, methods, and more, and is a significant and important feature of contemporary biology. Here I argue that it is worth (...) identifying and naming this shift, and encouraging a deeper and broader embrace of it. (shrink)