The wizards of Silicon Valley said people would be commuting to work in self-driving cars by now. Instead, there have been court fights, injuries and deaths, and tens of billions of dollars spent on a frustratingly fickle technology that some researchers say is still years from becoming the industry’s next big thing."Wizards."Now the pursuit of autonomous cars is undergoing a reset. Companies like Uber and Lyft, worried about blowing through their cash in pursuit of autonomous technology, have tapped out. Only the most deep pocketed outfits like Waymo, which is a subsidiary of Google’s parent company Alphabet, auto industry giants, and a handful of start-ups are managing to stay in the game.