We have seen some of the many artificial ISs, written by other people. We noticed many fundamental similarities and some differences in detail. It was interesting to note the many similarities between artificial and natural IS, and to learn of their differences. In today's artificial ISs, emotions are not used or used only sparingly. Surprisingly, in both humans and animals, emotions play an important role as an indicator of whether an objective was reached or not.
Human beings are slaves of their habits.
Studying the IS, we saw that such a system is aware of some response rules and concepts, namely those applicable to the present situation. However, it is not aware, in a given moment, of all others. Also, the basic mechanisms of handling concepts and response rules are unconscious . We have, not quite arbitrarily, defined a society as a system that has objectives, and is composed of ISs having an appreciably shorter life span than the society . It gives us the tools for a mathematical treatment of the occurrences in a society.