ABSTRACT
On trying to understand some new subject of inquiry we are frequently led to a series of questions of an epistemological nature of which the most common is “What is it?” Since an objective answer to this question is seldom found, we usually search for a way out of this difficulty by abandoning the original question and taking, in its place (and supposedly as its equivalent), a set of different questions. Changing questions means, most times, changing problems. But sometimes this change allows the advancement of our understanding about the original subject, by providing explanations endowed with enough coherence to be taken as a new branch of knowledge.
