Your recent work advances the concept of a ‘Cosmic Hylomorphism'. What is that and what steps forward does it take in the development of hylomorphism as a theory?
Cosmic Hylomorphism says there is just one substance; namely, the physical cosmos. Contrary to the corpuscularians, who rejected Aristotle’s doctrine of hylomorphism, the world is not built of microscopic entities from the ‘bottom up’. Rather, everything in nature — including every microscopic particle — is part of this Cosmic Substance, depending for its existence and nature upon the whole of which it is part. Aristotle didn’t believe the cosmos was a single substance, but I think this is a good way of making sense of the ‘Bohmian’ interpretation of quantum mechanics that originated in the work of the physicists Louis de Broglie and David Bohm.
Hylomorphic Pluralism, on the other hand, says there are multiple substances which exist at different scales. Aristotle thought biological organisms were substances, for example, being composite entities whose various parts derive their identity from the wholes of which they are part. I think there are other interpretations of quantum mechanics, besides the Bohmian interpretation, for which Hylomorphic Pluralism may offer a better fit. I am currently thinking about a recent non-standard interpretation put forward by the physicist Barbara Drossel and the cosmologist George Ellis, which recognises the irreducible role played by macroscopic, thermal properties in any practical applications of quantum mechanics, inviting a possible philosophical interpretation in terms of macroscopic substances. I am sympathetic to this view of nature, in which things at the macroscopic scale – such as you and me – make a causal difference to how the world unfolds.
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