ABSTRACT
This chapter has some kind of a philosophical admixture in it. It Concerns on two preliminary remarks in order. The first bears on the very word "realism", the second remark is of a more practical nature. All statements in physics are, of course, objective. But this assertion is, to some extent, there are two distinct types of objectivity, strong and weak objectivity. The environment theory is aimed at being more than a purely "phenomenalistic" theory since, (contrary to, e.g., Bohr's approach) it imparts a meaning to the notion of the quantum state of the instrument independently of whether or not the latter is used as such. It is based on the quite crucial remark that macroscopic systems of even quite a small size (such as dust specks) have such a dense energy spectrum that they never can be considered as totally isolated from environment.
