Distance alone isn't enough of a reason though, Beijing–Shanghai is 1200 KM and yet you can cover that by train no problem in < 5 hours: https://en.wikipedia.or

Distance alone isn't enough of a reason though, Beijing–Shanghai is 1200 KM and yet you can cover that by train no problem in < 5 hours: https://en.wikipedia.org/wiki/Beijing%E2%80%93Shanghai_high-speed_railway https://en.wikipedia.org/wiki/Beijing%E2%80%93Shanghai_high-...