Although this list suggests that theory building is virtually indistinguishable from problem solving, there are some important subtleties. First, Steps 3, 4, and 5 occur concurrently rather than sequentially. Second, Step 6, metaphysical elaboration, is described as a receptacle for the intuitions that surface during the theory-building task. These intuitions consist of "conceptualizations that might not fit the categories delineated or forced by the imposed rigor of the general theory building" (p. 445). This wisdom of the theoretician, expressed in discursive form, consists of speculative ideas and deductions that may be untestable; these may be crucial outcomes of the theorizing process. Third, Bourgeois insisted that the process continuously should weave back and forth between intuition and data-based theorizing and between induction and deduction. He concluded with five pre-scriptions such as "read some of the old masters," "ground your theory on data," and "take advantage of serendipity.