That is so true though the word “class” heavily loaded with 19th-century ideology, particularly class struggle, class war, social classes, working class, the proletariat. It does not correspond to the new stratification of modern 21st-century society. These qualities plus qualification, competence, and performance establish networks in the society that do not create classes because they are both real and virtual, extremely flexible and adaptative, in no way permanent or frozen, not even stable or long-lasting. This mobility and voluntarily circumstantial spectral networks are the heart of the present change which is covered by the concept of fourth industrial revolution though it is a cognitive revolution and not an industrial revolution. Cognition, knowledge first, and then the industry is one of the activities that are under total dependence to this cognition, cognitive competence, and cognitive networks.