Joint-carving - 'The First Cut is the Deepest' c/o Traldi
Last Friday I joined in another online session of the Argumentation network c/o Andrew Aberdein and Kat Stevens.
The subject was “The Epistemology and Politics of Redefinition” by Oliver Traldi.'Because properties are so abundant, they are undiscriminating. Any two things share infinitely many properties, and fail to share infinitely many others. That is so whether the two things are perfect duplicates or utterly dissimilar. Thus properties do nothing to capture facts of resemblance. That is work more suited to the sparse universals. Likewise, properties do nothing to capture the causal powers of things. Almost all properties are causally irrelevant, and there is nothing to make the relevant ones stand out from the crowd. Properties carve reality at the joints -- and everywhere else as well. If it's distinctions we want, too much structure is no better than none.' p.346.
'Though the facts or truths that the realist judges mind-independent are most commonly put in terms of a kind’s ‘naturalness’ (or lack thereof), they may be formulated in alternative locutions, such as the ‘reality,’ ‘non-reality,’ or ‘artificiality’ of a kind or kinds. For example, that human races are not real, or that protons form a natural kind, both express such facts. Equivalently, Plato’s famous carving metaphor may be used to do so, as when it is asserted that the classifications of the DSM-5 do not carve nature at the joints. For the sake of expository simplicity I will exclusively use the language of ‘naturalness’ here, but translations into alternative terminology are straightforward.'
'The goal is to have a consistent and informative test for what countsas a realist versus an anti-realist view about natural kinds. Bird’s(2018) taxonomy,building on Hawley and Bird(2011), focuses on the questions of whether naturalkinds exist, and if so, what sort of entity kinds are. Franklin-Hall’s (2015) taxonomyfocuses instead on whether kinds are individuated by a mind-independent principle,or whether kinds “carve at the joints”.1 This paper focuses mainly on the issues raisedby Bird’s (2018) taxonomy.' p.11862.
![]() |
Hodges' model |