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Order According to Law: Cassirer’s 'Determinism and Indeterminism' and the Architecture of Scientific Objectivity

Vafiadis, James (2026) Order According to Law: Cassirer’s 'Determinism and Indeterminism' and the Architecture of Scientific Objectivity. [Preprint]

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Abstract

Ernst Cassirer's Determinism and Indeterminism in Modern Physics (DI; Cassirer, 1936/1956) constitutes a major but systematically overlooked transformation in the philosophy of quantum mechanics. Against interpretations that treat the text as a late application of his earlier structuralism, this article argues that quantum mechanics forces a fundamental reconstruction of causal order and scientific objectivity. Following the dissolution of Laplacean determinism, causality is no longer directed at ‘things’ in the world, but functions as a regulative demand that experience be rendered intelligible. Accordingly, causal order does not map to a pre-given reality but is progressively constituted from within experience through recursive processes of functional co-ordination (Zuordnung). This reconstruction culminates in a participatory account of objectivity organised through three mutually conditioning levels – measurements, laws, and principles. The upshot is that physical objects emerge as invariant nodes within relational structure; objects are fixed as objective relations. On this basis, the article shows that neither epistemic nor ontic structural realism adequately captures Cassirer's position and develops in response a provisional functional ontology in which a co-ordinating subject and an indeterminate relational domain jointly constitute the transcendental conditions of objectivity. The article concludes by situating DI within a broader participatory tradition in the foundations of physics, arguing that Cassirer's recursive and observer-dependent account of objectivity anticipates key developments in second-order cybernetics and participatory approaches to quantum mechanics.


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Item Type: Preprint
Creators:
CreatorsEmailORCID
Vafiadis, James0009-0008-7264-3319
Keywords: Ernst Cassirer; quantum mechanics; neo-Kantianism; structural realism; objectivity; causality; participatory realism
Subjects: General Issues > Scientific Metaphysics
General Issues > Causation
General Issues > Determinism/Indeterminism
General Issues > History of Philosophy of Science
General Issues > Philosophers of Science
Specific Sciences > Physics > Quantum Mechanics
General Issues > Realism/Anti-realism
Specific Sciences > Physics > Symmetries/Invariances
General Issues > Theory/Observation
Depositing User: Dr. James Vafiadis
Date Deposited: 29 May 2026 12:38
Last Modified: 29 May 2026 12:38
Item ID: 29797
Subjects: General Issues > Scientific Metaphysics
General Issues > Causation
General Issues > Determinism/Indeterminism
General Issues > History of Philosophy of Science
General Issues > Philosophers of Science
Specific Sciences > Physics > Quantum Mechanics
General Issues > Realism/Anti-realism
Specific Sciences > Physics > Symmetries/Invariances
General Issues > Theory/Observation
Date: 21 May 2026
URI: https://philsci-archive.pitt.edu/id/eprint/29797

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