Hyperloop would make it possible to travel from Scranton, Penn., a historic city full of relatively cheap homes, to Manhattan in about the same time as it now takes to get to Brooklyn on the subway. Scranton is 145.2 miles from Manhattan, which is a 2½-half hour drive or bus ride. If that travel time gets reduced to 10 to 20 minutes, much of Brooklyn’s appeal goes up in smoke. There are dozens of historic cities full of cheap old houses within a few hundred miles of Manhattan.