By Günther Ludwig
In the 1st quantity we established quantum mechanics at the aim description of macroscopic units. The extra improvement of the quantum mechanics of atoms, molecules, and collision approaches has been defined in . during this context additionally the standard description of composite platforms through tensor items of Hilbert areas has been brought. this technique will be officially extrapolated to structures composed of "many" ele mentary platforms, even arbitrarily many. One previously had the opinion that this "extrapolated quantum mechanics" is a extra accomplished conception than the objec tive description of macrosystems, an opinion which generated unsurmountable diffi culties for explaining the measuring strategy. With admire to our origin of quan tum mechanics on macroscopic objectivity, this opinion might suggest that our founda tion isn't any beginning in any respect. the duty of this moment quantity is to achieve a compatibility among the target description of macrosystems and an extrapolated quantum mechanics. hence in X we identify the "statistical mechanics" of macrosystems as a concept extra compre hensive than an extrapolated quantum mechanics. in this foundation we clear up the matter of the measuring strategy in quantum mechan ics, in XI constructing a conception which describes the measuring technique as an interplay among microsystems and a macroscopic gadget. This thought additionally permits to calculate "in precept" the observable measured via a tool. Neither an incorporation of cognizance nor a mysterious mind's eye similar to "collapsing" wave packets are necessary.