Scaling law of the biological evolution and the hypothesis of the self-consistent Galaxy origin of life

It is supposed that the sequence of the Earth's biospheric revolutions obeys the scaling law. An estimation of the duration of the prebiological chemical evolution as (5-7) × 109 years is obtained by an extrapolation of the scaling law of the biospheric evolution. The expected scale of time of interstellar prebiological panspermia (∼0.2 × 109 yr) is much shorter then the estimated duration of the prebiological chemical evolution. The hypothesis of the long prebiological chemical evolution implies that: (a) the prebiological evolution and the origin of life may be a self-consistent Galaxy process and not a process localized on single planets and (b) life has the same chemical base and the same chirality everywhere in the Galaxy.