The genetics across the entire human race that migrated out of Africa are basically identical. There is more genetic diversity between two troops at Monkeys on opposite sides of a river in central Africa or what we know check the fact in the book then there is within native African peoples. In that sense it's not genetic reasons why Eurasian civilizations were technologically more advanced than American civilizations in the early 1500s okay so let's move on to astrobiology if that's all right with youOkay astrobiology is the quest which I'm sure you know to understand the origin evolution distribution and future of life in the universe since you've begun your research career as an astrobiologist who was around 12 years