2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/93294I discuss the role of quantum dynamics in brain and living matter physics. The paper is presented in the form of a letter to Patricia S. Churchland.to appear in Proceed. of the Tucson 1996 Conference "Towards a Science of Consciousness" Latex fileQuantum Physicstext