Yes indeed, Life is Complicated. The most complex issue of Life is the problem of the experience called Time. The eternal recurrence of Day and Night and the eternal recurrence of Seasons with the same periodicity gives the false impression of the Cyclical Flow of Time whereas every instant on Earth is a new instant which never repeats itself.
The man exists in a world without the possibility of the infinite repetition. The Magic of Creation enforces the alteration of each and every moment and no man is born with the same genome that existed in the past or may exist in the future.