Gries, Werner HugoUniversity of Pretoria. Dept. of Physics2015-11-032015-11-032015-10Gries, WH 2015, 'A physicist's model of mind', Essays on Cognitive Physical Science, Essay 3, pp. 1-31.http://hdl.handle.net/2263/50310This is Essay 3 of the Collection of 'Essays on Cognitive Physical Science' in the repository UPSpace of the University of Pretoria.Essay 3 is the author's first comprehensive description of a model of mind from a physicist's perspective which meets the minimum requirements for such a perspective, inter alia the requirement of a concrete specificity of the underlying physical structure and details. It therefore supersedes the Parallel-Systems Mind Model of Essay 1 (hdl.handle.net/2263/16600), which falls short of this requirement, although many of its features and implications remain valid.Essay 3 is introduced by a discussion of what distinguishes the concept of 'understanding something' for a physicist from that for researchers in other disciplines. This is where the concept of 'levels of logic' (elaborated in Essay 2, hdl.handle.net/2263/43388) plays a decisive role. All further reasoning towards the author's model of mind is based on this physicist's notion of understanding.enCopyright with the authorPhysicist's model of mindPhysicist means by 'understanding'Modular Mental Structure ModelLevels of logicPhysical and mental modulesLeast effort principleRouting of learning-related signalsPrivate-paradigm modulesGeneration of mindLeast mental stress principleComplex-system behaviour of mindSignal routing by taggingGroupthink phenomenonText