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ges caused a vital anxiety and search for new answers – we
                 mean, of course, the dissemination of new renewable sources
                 of electric power generation and the growing conscience that
                 a moral imperative hangs over the industry, to provide a strong
                 contribution to the fight against climate change.
                 	 Power Systems 4.0 is now being understood as the
                 materialization of cyber-physical digital systems. Some of
                 the characteristic traits include: pervasive sensing, global as-
                 set interconnection by IoT technologies, big data, analytics e
                 cloud resources, massive and intensive simulation and artifi-
                 cial intelligence progressively in closed loop. There is a chain
                 becoming more robust every day, that starts with sensors and
                 communications, and invokes intelligence to generate deci-
                 sion and trigger action.

                 Intelligence

                 What makes a model/system be recognized as intelligent?

                 	 One simple explanation would define “an intelligent
                 system as a (usually computational) system that makes repre-
                 sentations, interpretation and reasoning based on data”. This,
                 however, is a rather vague and incomplete definition. After the
                 work of Alan Turing, it became a scientific norm that the fo-
                 llowing sentence should be added: “imitating of mimicking the
                 human cognitive process”.
                 	 But this is still insufficient – we do not know enough
                 about the human cognitive process. Something somewhat
                 more measurable was needed. We therefore submit that the
                 following sentence should be added to the previous ones: “…
                 able to navigate in a field of uncertainty, resorting to the pro-
                 duction of reasonable decisions, even if with incomplete infor-
                 mation”.
                 	 In fact, this places the burden of proof in the results –
                 decisions. It is the product, not the process, that defines what
                 is intelligence and what is not.

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