In an alternative view, our perceptual apparatus presents the world to us in a particular way, and language first arose as an externalization of perceptual mechanisms involved in monitoring and tracking a changing world. Systems of formal logic are post hoc extrapolations from language. In contrast, I will explore the possibility of something like the noun-verb dichotomy and other broad features of clause structure emerging from perceptual mechanisms and their conventionalized exaptations used in rudimentary communication. I discuss the relation between the logical classification into predicates and singular terms and linguistic word-class systems. An individual keeps track of a changing world.
Input is from the world only.
One individual helps another to keep track of a changing world by drawing its attention to properties. The second individual has access to the changed world. Input is from the informant and the world. One individual helps another to keep track of a changing world by drawing its attention to properties. The second individual has no access to the changed world.