The document discusses trends in urbanization over the late 19th century to present. In the late 19th century, many successful businessmen like Rockefeller, Ford, and Carnegie operated out of New York City due to its central location between states and Europe. However, with the rise of e-commerce, New York is losing its stronghold as geographic location matters less. It is unclear which city may replace New York as the economic powerhouse of America. The document also discusses how cities like Calgary, Houston, and Dallas have grown much faster than New York, LA, or SF in recent decades and are becoming centers of world trade. Additionally, Asia now has more skyscrapers than North America, and many cities that were once poor are building