Earlier quoted context omitted.
The center of population in the US is still just barely to the west of the Mississippi, whenever people point out how vast and largely empty the US is, the leave out that the population itself is actually generally fairly close together for a majority of the country. You could easily have HSR all over the south, Midwest and NE, and then between population centers on the west coast, just likely not in the desert and w…
See for example Alon Levy's map of proposed HSR for the Eastern United States: https://pedestrianobservations.com/2019/02/10/high-speed-rai... They've actually done serious investigation of what's viable given typical costs and ridership of high-speed lines elsewhere in the world. The high-speed bits they propose are basically a Boston-Atlanta-Chicago triangle with some ornaments (Chicago - KC, Chicago - Minneapolis,…
They did the math and decided to connect Florida to the main Eastern component (based on there being enough demand for Atlanta-Florida travel), so there are four components - the main Eastern component, Texas, California (+Vegas, Phoenix), Pacific Northwest (Portland to Vancouver)