1.

Systems theory has its fixed place in engineering education, although it often appears under other names such as automatic control or control engineering. If you search for "systems theory" with Google, you will find many "engineering systems theories". Design engineers use system theory practically, i.e. without having to think about it theoretically. I will come back to this.

2.

Compare with N. Wiener's novel Die Versuchung, in which he reports how he used mathematical theory in the construction of machines.

3.

I have described the transition from construction to analysis in detail in the book Technische Intelligenz.

4.

F. Nietze wrote: "Man can put up with almost anything as long as he has a why." There are the most incredible explanations. H. Maturana quotes an explanation of how children are born in Chile: They are produced in Europe and flown to Chile by storks. H. Maturana says that explanations are social relations (see note 4 to explanation) (see note 4 of The explanation).

5.

N. Luhmann argues quasi analogously for sociology using the example of "dead fish swim in the Rhine". [...] "... but of course we have to see for what reasons our society refers to such facts within a communication system [...] In this way we also gain access to such questions as whether it is actually only the press that is talking about it, whether it is only a topic in school lessons or in youth groups, how the economy reacts to it, i.e. which of these three systems communicates about this topic and with what internal consequences. That is the sociologically interesting thing about the topic, not the dying of the fish" (System theory:89f).