2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/106589Frank Wilczek's essay "Total Relativity: Mach 2004" (PHYSICS TODAY April, 2004, p. 10) cogently updates the status of the intuitively compelling, but partly unrealized, theory of Mach's Principle. I think, however, that an important consequence of the Principle has been skipped: that is, the possibility of linear deformations of the internal structure of elementary particles from the Minkowski structure imposed by the local gravitational (metric) field. [Note: This Comment is similar to one submitted to, but not published by, PHYSICS TODAY as a Letter to the Editor.]3 pages, no figures or tables; similar to a communication originally submitted to, but not published by, PHYSICS TODAY as a Letter to the Editor. Revised version: augmented title and abstract, several changes made in text for clarityClassical PhysicsGeneral Relativity and Quantum CosmologyHistory and Philosophy of Physicstext