Efrom Musk Warner Bros Studios’ choice for the long-awaited launch of its robotaxi on October 10 is entirely justified. Hollywood’s movie studios are as much a dream factory as Tesla, its electric car company. The vision he presented, accompanied by shouts of delight from the superfans in the audience, is an autonomous Cybercab so cheap it will serve as “individualized public transportation.” But Musk’s promises, like many Hollywood films, were long on bombast and short on reality. The road to self-driving taxis will be long, and Tesla will face stiff competition along the way.