What I would like to ask theorists who create taxonomies of everything is this: Does your own theory fit into the taxonomy? It seems to me, that no matter how this question is answered, it presents an insoluble logical dilemma. For if the taxonomy contains the theory, then the theory is smaller in scope than the taxonomy itself, and hence cannot include it; but if, on the other hand, the theory does not fit into the taxomony, then it is something extraneous to the taxonomy - and a taxonomy cannot be of everything as long as there is something extraneous to it.