Megacity A megacity is a very large city metropolitan area, typically with a population of more than 10 million people.
Ed Rendell Backing 300mph Bullet Train: DC to Philly in 40 minutes?
Tokyo, Delhi, Shanghai, Jakarta, Sao Paulo, Mexico City, Cairo, Mumbai, Beijing, Seoul, Guangzhou, Manila, New York, Shenzhen, Lagos, Kyoto-Osaka-Kobe, Wuhan, Los Angeles, Dhaka, Chengdu, Moscow, Chongqing, Karachi, Bangkok, Tianjin, Istanbul, Kolkata, Tehran, London, Buenos Aires, Hangzhou, Rio De Janeiro, Xian, Paris, Changzhou, Kinshasa, Lahore, Rhine-Ruhr, Shantou, Nanjing, Bengaluru, Jinan, Chennai, Harbin, Bogota, Nagoya, Lima.
Elon Musk's boring company's top contribution to humanity could be that now every megacity, city and town on earth can hope to have cutting edge sewage systems. They don't have to dig up roads. Machines create tiny tunnels underground at rapid clips.
These cities should all look into vertical farming where Singapore seems to be in the lead.
Ultracity is 100 million or more. You deliberately create. A prime target would be the DC to Boston corridor. The component cities continue to function as independent jurisdictions. But ultracity is an infrastructure play. Transporation is hyperloop. Food is vertical farming. Crime control is biometric ID and the Blockchain. If every transaction is on the Blockchain, how do you steal money? You can't.
