The problem with representing knowledge

The articles contained in this issue raise a series of questions that all, to a greater or lesser degree, call in to doubt our ability to communicate with each other. This is a particularly melodramatic way of expressing it, perhaps, but it serves to highlight a fundamental concern: even if we know something, can we share that knowledge with anyone else? More specifically, for researchers in this field, if we think we know something about technology, how can we communicate that understanding to others?