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The Unprincipled Principle of Common Cause

Earman, John (2026) The Unprincipled Principle of Common Cause. [Preprint]

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Abstract

Reichenbach introduced common cause reasoning in Experience and Prediction (1938) as part of an argument for scientific realism. In The Direction of Time (1956) common cause reasoning becomes an inference principle holding that statistical dependence between simultaneous events demands a common causal explanation. The principle of common cause (PCC) gives the appearance of precision through four probabilistic conditions that a common cause must satisfy, but closer analysis reveals significant vagueness and ambiguity that make it difficult to evaluate putative counterexamples. And sadly the PCC is prostituted in an attempt to derive relations of temporal precedence from statistical relations. Reichenbach also neglected alternative explanations of statistical dependence and failed to address cases where such dependence is so pervasive that its ubiquity, rather than any particular instance, is the primary explanatory challenge. One not unreasonable reaction would be to walk away from what is obviously a big sprawling mess. Such a reaction, however, is shortsighted. For as I will illustrate, examining how common cause type explanations fare in the theories of modern physics can be useful in illuminating a range of foundations issues.


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Item Type: Preprint
Creators:
CreatorsEmailORCID
Earman, Johnjearman@pitt.edu
Keywords: Reichenbach, Principle of Common Cause
Subjects: General Issues > Causation
Specific Sciences > Physics > Classical Physics
General Issues > Explanation
Specific Sciences > Physics > Fields and Particles
General Issues > Logical Positivism/Logical Empiricism
Specific Sciences > Physics
Specific Sciences > Probability/Statistics
Specific Sciences > Physics > Quantum Field Theory
Specific Sciences > Physics > Quantum Mechanics
Specific Sciences > Physics > Relativity Theory
Depositing User: John Earman
Date Deposited: 06 Apr 2026 12:35
Last Modified: 06 Apr 2026 12:35
Item ID: 28925
Subjects: General Issues > Causation
Specific Sciences > Physics > Classical Physics
General Issues > Explanation
Specific Sciences > Physics > Fields and Particles
General Issues > Logical Positivism/Logical Empiricism
Specific Sciences > Physics
Specific Sciences > Probability/Statistics
Specific Sciences > Physics > Quantum Field Theory
Specific Sciences > Physics > Quantum Mechanics
Specific Sciences > Physics > Relativity Theory
Date: 6 April 2026
URI: https://philsci-archive.pitt.edu/id/eprint/28925

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