After a period of every 300,000 years the owners of the human race come and wipe of planet earth and get rid of Humans and a couple of other animals. They later introduce a new breed (Races) that populate earth as they watch.
This explains why Ancient Africans were very technologically advanced but today’s Africans are retarded. In those early day the races living in Europe can to Africa for knowledge.
Our current human generation is in its last leg. The owners are fed up with us and that is why you see endless floods, fires, viruses