As his streams continued, speed began to observe patterns about Chinese urban design. The cities are built to be walkable. People naturally get exercise just going about their daily lives. His observations about the difference between car dependent American cities and the pedestrian friendly design of Chinese urban areas highlighted cultural differences rarely make it into mainstream coverage. It's a lot of walking in China. What? That's why everybody fit, right? Majority people are thin. Challenged years of messaging about Chinese development and quality of life. It wasn't propaganda.