[Paper Review] Physics and the Totalitarian Principle

Helge Kragh|arXiv (Cornell University)|Jul 10, 2019

Quantum Mechanics and Applications33 references4 citations

TL;DR

This paper examines the 'totalitarian principle' in physics—wherein all physically allowed entities must exist—tracing its origins, philosophical roots in the 'principle of plenitude,' and its role in theoretical predictions. It analyzes historical cases like magnetic monopoles, radioactive protons, and the muon neutrino, showing how the principle guided theoretical reasoning despite lacking empirical confirmation.

ABSTRACT

What is sometimes called the "totalitarian principle," a metaphysical doctrine often associated with the famous physicist Murray Gell-Mann, states that everything allowed by the laws of nature must actually exist. The principle is closely related to the much older "principle of plenitude." Although versions of the totalitarian principle are well known to physicists and often appear in the physics literature, it has attracted little reflection. Apart from a critical examination of the origin and history of the totalitarian principle, the paper discusses this and the roughly similar plenitude principle from a conceptual perspective. In addition it offers historical analyses of a few case studies from modern physics in which reasoning based on the totalitarian principle can be identified. The cases include the prediction of the magnetic monopole, the hypothesis of radioactive protons, and the discovery of the muon neutrino. Moreover, attention is called to the new study of metamaterials.

Motivation & Objective

• To investigate the conceptual and historical foundations of the totalitarian principle in theoretical physics.
• To examine the relationship between the totalitarian principle and the older principle of plenitude in metaphysics.
• To identify and analyze instances in modern physics where reasoning based on the totalitarian principle influenced theoretical predictions.
• To assess the epistemic status and scientific utility of the principle in light of empirical evidence and philosophical scrutiny.

Proposed method

• Conducting a historical and philosophical analysis of the totalitarian principle and its connections to the principle of plenitude.
• Tracing the intellectual lineage of the principle from metaphysical traditions to its adoption in 20th-century theoretical physics.
• Analyzing three key case studies: the prediction of magnetic monopoles, the hypothesis of radioactive protons, and the discovery of the muon neutrino.
• Evaluating how the principle functioned as a heuristic in theoretical reasoning despite its lack of empirical validation.
• Examining contemporary applications in metamaterials research to assess the principle’s ongoing relevance.
• Using archival and published sources to reconstruct the development and use of the principle in physics literature.

Experimental results

Research questions

• RQ1 What is the historical and philosophical origin of the totalitarian principle in physics?
• RQ2 How does the totalitarian principle relate to the principle of plenitude in metaphysics?
• RQ3 In what ways has the totalitarian principle functioned as a heuristic in theoretical physics?
• RQ4 To what extent do case studies like magnetic monopoles and the muon neutrino demonstrate the predictive power of the principle?
• RQ5 What are the epistemic limitations and risks of relying on the totalitarian principle in theoretical physics?

Key findings

• The totalitarian principle, though widely invoked in theoretical physics, has received little critical philosophical scrutiny despite its foundational role in guiding theoretical expectations.
• The principle traces its roots to the principle of plenitude, a metaphysical doctrine asserting that all possibilities allowed by logic or nature must exist.
• In the case of magnetic monopoles, the principle motivated theoretical predictions based on symmetry and gauge invariance, even in the absence of empirical evidence.
• The hypothesis of radioactive protons was similarly driven by the idea that all allowed decay modes must occur, though no such decay has been observed.
• The discovery of the muon neutrino was influenced by the expectation that all lepton flavors must be accounted for, reflecting a form of the totalitarian principle.
• Contemporary research in metamaterials reveals renewed use of the principle in designing materials with exotic electromagnetic properties, suggesting its continued heuristic value.