We need research to appropriate for the software reuse problem the large body of knowledge as to how people acquire language. Some of the lessons are immediately obvious: • People learn in sentence contexts, so we need to publish many examples of composed products, not just libraries of parts. • People do not memorize anything but spelling. They learn syntax and semantics incrementally, in context, by use. • People group word composition rules by syntactic classes, not by compatible subsets of objects.
