Futurology

I understand your point. I just don't share the pessimism, I come from finland where the population density is less than half that of the US and our trains run fine. That's why I think the US could both build infrastructure that would bring about different kinds of traffic flows, as well as just build rail infrastructure for current traffic flows that would work just fine.

Don't know if we can reach an agreement on this topic though. There are arguments both for and against, and we can't really get closer to the truth without trial and error.