> Would you trade a 6hr flight (travel time) for a 13hr train ride? 15? For as slow as such a train ride would be, it still seems implausibly fast. For example

> Would you trade a 6hr flight (travel time) for a 13hr train ride? 15? For as slow as such a train ride would be, it still seems implausibly fast. For example, flying from Seattle to Miami today takes less than 6 hours. If you laid a perfectly straight rail line all the way from Seattle to Miami, and ran a TGV along it at its top speed with no stops, it'd take more than 13 hours. And once you make the train case even slightly more realistic instead of using all of those best-case assumptions that are impossible in practice, you easily exceed 15 hours too.