Geography by chance

The modern world is full of countries, some wealthy some poor. Same thing was on earth 12,000 years ago. Some groups of people where thriving some where dieng. But why is it like this, was it that some people where smarter than others or where more efiecient. After watching a movie I was fast to agree on the theory of a scientist. It was simple luck that decided who was wealthy or not. The middle east was great farm land 12,000 years ago and had animals like cows, horses and goats. The people who decided to settle down in that area where lucky to make that choice. The dirt there could grow plants with a lot of protien so if the people ate this they would have a stable diet making them strong and healthy. When they started growing theese crops they didn't have to gather all day and had time to think about new technology. People noticed more efective ways to live and eventually became modern man. Theese people also moved to europe when the middle east started getting over used. They used the same technology in Europe and then moved to the Americas. USA and Europe are quite well of and this proves the crops theory. Think about if you only gathered and ate all day then you would never have time to think about new things.