We do need density at the end of that rail line - dense towns connected to a dense metropolitan hub via a fast rail line. For example Ann Arbor to Detroit, D

We do need density at the end of that rail line - dense towns connected to a dense metropolitan hub via a fast rail line. For example Ann Arbor to Detroit, Davis to Sacramento (neither of which have fast rail lines to connect them). What we've built instead for more than half a century is continuous radiating sprawl.