Yep, and given that AMTRAK already achieves more than a third of the air/rail market share even on NYC-Boston, that route could resemble the main Shinkansen corridor, would it be built. In Japan, your good idea of two sets of stops is already realised, BTW -- in fact there are even three classes of trains in terms of how many stops they have. But first voters have to be convinced to pay the price tag...

_{*Lunatic*, n.
One whose delusions are out of fashion.}