Jul 202017
 

McKenzie, Kerry, and . Ontic Structural Realism

2017, Philosophy Compass 12(4).

Abstract: Ontic structural realism is at its core the view that ‘structure is ontologically fundamental.’ Informed from its inception by the scientific revolutions that punctuated the 20th century, its advocates often present the position as the perspective on ontology best befitting of modern physics. But the idea that structure is fundamental has proved difficult to articulate adequately, and what OSR’s claimed naturalistic credentials consist in is hard to precisify as well. Nor is it clear that the position is actually supported by our most fundamental physical theories. What is clear, however, is that structuralists have revealed a seam of material at the core of modern physics that is replete with implications for metaphysics. This article surveys some positions subsumed under the rubric of OSR, considering both their warrant and the interconnections that exist between them. The author argues that the fundamental kind properties pose a challenge to ontic structuralism, because it seems that these properties do not supervene upon the relevant structures. The development of structuralist metaphysics will require both an engagement with the details of modern physical theories and the deployment of tools more typically developed in a priori metaphysics. As such, it seems armchair metaphysicians have not just a stake in whether OSR’s claims may ultimately be shown to stand up, but a crucial role to play in getting them to the point where they can be subjected to scrutiny in the first place.

Comment: This paper offers a good overview of Ontic Structural Realism and its two distinct doctrines: eliminative structuralism and priority-based structuralism. It could serve as a specialized reading for postgraduate courses in philosophy of science. Before reading this paper, students should first acquire some knowledge on the basic features of structural realism.

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