Quantum measurements, the phenomenon of life, and time arrow: three great problems of physics (in Ginzburg's terminology) and their interrelation

Relations existing among 'the three great problems' of physics (as enumerated by Ginzburg) - interpretation of quantum mechanics, the time arrow, and reductionism (reducing the phenomenon of life to physics) - are discussed and shown to substantially depend on how the first of them is solved, i.e., which interpretation of quantum mechanics is adopted. The Copenhagen interpretation, the Everett ('many-words') interpretation, and Extended Everett Concept proposed by the author are considered. (oral issue of the journal 'uspekhi fizicheskikh nauk')