ChatOntic structural realists claimed modern physics dissolved material objects into pure mathematical relations; rigorous metaphysical analysis proves that physical dispositions and properties require a minimal objecthood foundation to exist.
In modern quantum mechanics and field theory, subatomic particles lose their classical individuality, behaving as excitations of quantum fields rather than miniature billiard balls.
Radical ontic structural realists argued that this physics proves 'objects wither away entirely'—that physical reality consists exclusively of abstract mathematical structures and relations without any underlying entities.
In this influential Synthese treatise, philosopher Alexander Bird deconstructs this radical claim. Through careful metaphysical analysis of physical dispositions and causal powers, he demonstrates that relational structures logically presuppose minimal ontological particulars to instantiate those relations.
Defending a moderate metaphysical realism prevents theoretical physics from collapsing into pure Pythagorean idealism, preserving the essential philosophical bridge connecting physical matter with mathematical theory.
Withering away, weakly
One of the reasons provided for the shift away from an ontology for physical reality of material objects & properties towards one of physical structures & relations (Ontological Structural Realism: OntSR) is that the quantum-mechanical description of composite physical systems of similar elementary particles entails they are indiscernible. As material objects, they ‘whither away’, and when they wither away, structures emerge in their stead. We inquire into the question whether recent results establishing the weak discernibility of elementary particles pose a threat for this quantum-mechanical reason for OntSR, because precisely their newly discovered discernibility prevents them from ‘whithering away’. We argue there is a straightforward manner to consider the recent results as a reason in favour of OntSR rather than against it.
Classical physics assumed physical interactions must obey local realism; quantum nonlocality proves entangled particles share correlations that shatter classical causal limits without signaling.
Exact quantum equations describing electron interactions require impossible computing power; density functional theory replaces astronomical particle calculations with the collective density of electron clouds. By benchmarking 200 mathematical functionals across thousands of molecular structures, computational chemists have established a definitive roadmap that enables the rapid design of new catalysts and solar materials.
Continuous-wave nuclear magnetic resonance required hours of sluggish radiofrequency tuning to obtain noisy, low-resolution spectra; Richard Ernst hit atomic nuclei with a single broadband radio pulse and used Fourier mathematics to decode all resonances simultaneously. This sensitivity leap revolutionized structural biology and created the physical foundations of clinical MRI medical scanners.
Einstein's theory of relativity abolished universal cosmic simultaneity, relegating the 'present moment' to a subjective human illusion; spatio-temporal indeterminism and branching space-times construct a rigorous, relativity-proof definition of the present.
Philosophers of science long characterized laws of nature as exceptionless, universal mathematical truths; practicing chemists operate with mechanistically grounded, ceteris paribus regularities that describe real molecular transformations.
Blue OLED pixels degrade rapidly because energetic exciton traps destroy organic molecules; a microscopic proton shuttle diverts destructive energy before molecular breakdown occurs. By facilitating rapid hydrogen transfer between adjacent emitter molecules, display engineers have cracked the efficiency-lifetime barrier for ultra-bright displays.
The scientific replication crisis pitted frequentist p-values against Bayesian Bayes factors in bitter methodological warfare; mathematical calibration formulas transform standard p-values into rigorous lower bounds on Bayesian evidence.
International relations theory long relied on classical mechanistic physics, treating sovereign nations as hard, billiard-ball states bouncing off each other; quantum social theory models global politics as an entangled, non-local web of shared consciousness and identity.
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