Elon Musk’s growing fortune sparks discussions about his potential to transform key industries and even societal norms. An L.A. Times reader underscores his latest ventures, including electric vehicles, rockets bound for Mars, and self-driving cars that may save thousands of lives.

Emergency responders say they’re becoming “unpaid roadside assistance” for Waymo’s self-driving vehicles. As these autonomous cars occasionally freeze or stall, the police and fire crews are left covering gaps in technology, prompting calls for more accountability from the companies behind them.