Following the debates hosted by the "Fuzzy Sets" Seminar, the article gives evidence, in a personal manner, from the author's position and his concerns, some ideas of older or more recent source, related with the problem of causality and causal knowledge embedded into an appropriate logic frame with repercussions on the development of intelligent agents. The action is seen as the main factor which determines the change, with its dynamic contradictory character of the alternative actualization and latency of some opposite phenomena, and its possible consequences.
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