Dear Sung, I like your approach but I think it is only a part of the whole.

1. The shadows are real but only a part of the whole. What is needed is a systematic research from what they are part. 2. About the whole now I will use the category theory I have seen you like: CATA => F => CATB => G => CATC CATA => H => CATC F ○ G = H where F, G, and H are functors; CATII Î CAT is the category of information interaction categories; CATA Î CATII and CATC Î CATII are the categories of mental models’ categories; CATB Î CATII is the category of models’ categories. Of course, I will explain this in natural language (English) in further posts. ; Dear Karl, Thank you for your post – it is very useful and I will discus it in further posts. ; Dear Pedro, Thank you for your nice words. Mathematics is very good to be used when all know the mathematical languages. Unfortunately, only a few scientists are involved in the mathematical reasoning, in one hand, and, as the Bourbaki experiment had shown, not everything is ready to be formalized. How much of FIS members understood what I had written above? The way starts from philosophical reasoning and only some times ends in mathematical formal explanations. Friendly greetings Krassimir

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