2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/93483Two aspects of the physical side of the Church-Turing thesis are discussed. The first issue is a variant of the Eleatic argument against motion, dealing with Zeno squeezed time cycles of computers. The second argument reviews the issue of one-to-one computation, that is, the bijective (unique and reversible) evolution of computations and its relation to the measurement process.15 pages, latex, no figuresQuantum Physicstext