The true genesis happened 600 Million years ago; life jumped from basic to complex organisms. It stayed stagnate for ~ 2.5-3 billion years. If anything, thats when "aliens" bio engineered life.
Also, we stayed stone age until the Sumarians. In 41,000 years nothing changed, but in ~6500-7500 years civilization mastered fusion/fission, builds super computers, and started early quantum computer prototypes.