We don't have good trains anymore because our bureaucracy is to thick to get anything done. Also, Americans don't use trains, and getting us to use trains would be a big shift in the duopoly of cars and planes that most of us are familiar with. It's not a geographical problem.

We were one of the first countries to use railroads for long distance travel, and that was with 19th century technology. It's obviously possible with modern technology and modern population density.

Here's an addendum for those who don't get high-speed rail. The goal is not to replace planes or cars, it's to give another option. https://x.com/NastrondScourge/...