In the very beginning, the Roman Empire, Egyptian and Greeks dominated the world.
In the 1000s, it is the Middle East people's turn.
Then Europe led for 4 centuries.
In the 1950s, the oil-rich countries outperformed the rest.
Now everyone is eying Asia.
In Asia, I foresee Singapore will lead. South Korea will surpass Japan. In China, 3 major cities will enter the top 10 richest cities in Asia, namely Shanghai, Beijing & Shenzhen.