Starlink's mobile ambitions could run into a wall of steel and concrete

A SpaceX Falcon 9 rocket carrying Starlink satellites leaves a trail above Pasadena, California. Mario Tama/Getty Images SpaceX says Starlink could provide 'better service' than AT&T, Verizon, and T-Mobile by next year. That might be easier said than done, an analyst who studied the telecom industry for decades says. Benedict Evans said Starlink would need to build large numbers of base stations to make it work. An analyst is throwing cold water on Starlink's ambition to become a mainstream…