Texas triangle: San Antonio <-> Austin <-> Dallas Houston <-> Dallas House <-> San Antonio That'd link up 14—17 million people. Expected growth is

Texas triangle: San Antonio <-> Austin <-> Dallas Houston <-> Dallas House <-> San Antonio That'd link up 14—17 million people. Expected growth is another 10 million over the next 20 years. At an average speed of 600mph, it'd be about 25m commute between points, worst case.