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The Pyrrhonist’s Vacuum: Isostheneia in the Search for a Substrate for Einsteinian Relativity
1. Introduction
Professional physics has entered a “Scholastic” phase, in which the constancy of Special Relativity Theory (SRT) is treated as a dogmatic, fixed surface structure beneath which various incompatible “fundamental” ontologies are hypothesized. By surveying the mutually exclusive claims of Jacobson, Volovik, Wen, and ’t Hooft, we argue in this essay that the current state of scientific theory represents a perfect isostheneia (equipollence). Following the Pyrrhonian method of Sextus Empiricus (Sextus Empiricus, 1996), we find that the only intellectually honest move is the suspension of judgment (epoché), treating these models not as literal descriptions of a “qubit-net” or “superfluid” world, but as mere appearances.
2. The Trope of Diaphonia (Disagreement)
The professionalization of physics has produced a peculiar “Tower of Babel” effect. While every major theorist agrees on the “measurables” or phenomena—as per the empirical success of Einstein’s Lorentz invariance—there is a profound diaphonia regarding the underlying “beables” or reality (Bell, 1987).
For Grigori Volovik, the vacuum is a physical liquid, specifically a Helium-3 superfluid where gravity is merely a low-energy collective excitation (Volovik, 2003). By sharp contrast, Xiao-Gang Wen dismisses the fluid analogy in favor of a “qubit ocean,” where space-time emerges from string-net condensation (Wen, 2004). These are not merely different perspectives; they are mutually exclusive ontologies. If space is a liquid, it is not a net of entangled information, and conversely; yet, both theories “derive” SRT with equal mathematical elegance. This is the very definition of isostheneia: arguments of equal weight that cancel each other out.
3. The Agrippan Trilemma in Modern Theory
When professional physicists attempt to ground their specific theory, they inevitably fall into the “Agrippan Trilemma” of Sextus Empiricus, as follows.
- The Infinite Regress: Ted Jacobson derives the Einstein field equations from thermodynamics (Jacobson, 1995). Yet, thermodynamics requires a statistical ensemble of “parts.” What are the parts? To explain the parts, one must invoke a deeper layer of physics, which itself requires a substrate, ad infinitum.
- Dogmatism: To avoid the regress, Gerard ’t Hooft) must simply assert the existence of a cellular automaton as a “first principle” (‘t Hooft, 2016). This is strictly a dogmatic move; he begins with the lattice because it is the lattice he wishes to find.
- Circularity: Holger Bech Nielsen argues for “Random Dynamics,” claiming that relativity emerges from chaos (Nielsen, 1987). However, his definition of “randomness” is carefully curated to ensure it is the kind of randomness that yields Lorentz symmetry. The conclusion (relativity) is baked into the premise (the random substrate).
4. The Relational Escape: Crane and Rovelli
Some seek to escape this by moving from “stuff” to “relations.” Louis Crane and Carlo Rovelli argue that the “points” of space-time do not exist; there are only “events” (Crane, 2006; Rovelli, 2017). On this view, SRT is a relational language. Yet, even here, we find the Pyrrhonist’s Tenth Trope: Relativity of the Observer. The “relational” world of a Spin Network looks nothing like the “relational” world of a Categorical geometer. Our “knowledge” of the vacuum remains a function of our chosen mathematical category.
5. Conclusion: Following the Appearances
Against the professional urge to pick a “winner,” the modern Sextus Empiricus remains in a state of epoché. We do not deny that SRT works; we “follow the appearances” in our daily calculations while refusing to assent to any claim about what the vacuum really is.
As the sun sets over the city, the physicist realizes that whether the vacuum is a superfluid or a qubit-net is, for now, “non-evident” (adelon). Tranquility (ataraxia) comes not from solving the equation, but from realizing that the equation is just a map—and that we have at least six different, equally flawed maps of a terrain we can never see.
REFERENCES
(Bell, 1987). Bell, J.S. Speakable and Unspeakable in Quantum Mechanics, Cambridge: Cambridge University Press.
(Crane, 2006). Crane, L. “Categorical Geometry and the Mathematical Foundations of Quantum General Relativity.” Available online at URL = <http://arxiv.org/abs/gr-qc/0602120.>
(Jacobson, 1995). Jacobson, T. “Thermodynamics of Spacetime: The Einstein Equation of State.” Physical Review Letters 75: 1260–1263.
(Nielsen, 1989). Nielsen, H. B. “Random Dynamics and Relations between the Number of Fermion Generations and the Fine Structure Constants.” Acta Physica Polonica Series B, 1: 1
(Rovelli, 2017). Rovelli, C. The Order of Time New York: Penguin.
(Sextus Empiricus, 1996). Sextus Empiricus: Outlines of Pyrrhonism. Translated by B. Mates. Oxford: Oxford Univ. Press.
(‘t Hooft, 2016). ’t Hooft, G. The Cellular Automaton Interpretation of Quantum Mechanics Berlin: Springer.
(Volovik, 2003). Volovik, G.E. The Universe in a Helium Droplet. Oxford: Clarendon/ Oxford Univ. Press.
(Wen, 2004). Wen, X.G. Quantum Field Theory of Many-Body Systems Oxford: Oxford Univ. Press.
(Wikimedia Commons, 2020). “Sextus Empiricus—Engraving by G.F. Riedel—1801.” Wikimedia Commons. 8 February. Available online at URL = <https://commons.wikimedia.org/wiki/File:Sextus_Empiricus_-_engraving_by_G._F._Riedel_-_1801.jpg>.

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