If China actually had the population of the US in a single city, they wouldn’t be selling cars. There wouldn’t be enough physical space. People would take the subway.
May be you’re not actually looking at things in a common sense way.
If a city had more than 300 million people even subways wouldn't be enough. Maybe Asimov-inspired mass treadmill walkways (imagine massive things like airports but increasing in speed as you get further from the sidewalk).
Re:Never Hertz to Ask
by Stratoscope on Sunday June 14, 2020 @03:10PM
(#23520421)
USA = 328.2 million
Shanghai = 24.28 million
(2019 numbers)
Common-sense fundamentals take a back seat to technical analysis and HFT algos these days