The monograph offered to the reader considers the possibility of extending the principle of complementarity, developed by N. Bohr and V. Geisenberg to explain quantum phenomena, to the entire macroscopic world. By tradition, events opposing each other as opposites (strong-weak, chaos-order, being-non-being) are considered mutually incompatible. At the same time, the other side of the phenomenon is usually overlooked - their inextricable connection with each other.