High speed rail would make sense in the US, too. Like everything between Montana, Texas, and Kentucky is flat. You could build rail lines that are perfectly straight with nothing in the way you'd have to make a turn to go around (causing you to slow down). Such a line could probably hit 300 mph. If the line was fron LA to NYC, it could make that trip in about 9 hours (probably not because eventually you have to go around the Rockies, Appalachia, and Sierra Nevada).

But no. Let's continue using shitty tubes passengers get crammed into where we limit how much stuff they can bring and can't leave their seat except to go to the bathroom.