[PugetSoundSoldier]

A direct look at the economics of high speed rail in China as compared to the US. It MAY work in some incredibly high-density situations with low car ownership populations, and very low costs of implementation, but outside of that it's a loser.

[truthfreedom]

Boston to DC maybe.

[Erik Latranyi]

It MAY work in some incredibly high-density situations with low car ownership populations, and very low costs of implementation, but outside of that it's a loser.

You forgot to mention that it MAY work in all of the above AND where your choices are forcibly limited by a large central government.