Farhad’s Week in Tech: HomePod Whiffs, but Elon Musk Does Not. Car Services and Livery Cabs, Driverless and Semiautonomous Vehicles, Computers and the Internet, Social Media, Rocket Science and Propulsion, Speakers (Audio), Apple Inc, Snap Inc, Twitter, Waymo, Uber Technologies Inc, Space Exploration Technologies Corp, Musk, Elon