Waymo is different. Waymo evolved over a period of 15 years into a mature and deployable robotaxi service. Waymo has a hardware strategy, enormous data infrastructure, real time data from 2 billion Maps and Navigation users, a support infrastructure that makes opex sense, which makes an ambitious expansion program possible. In other words it's got what it takes to be a real product and it is a real product. Possibly uniquely since the three Chinese Robo taxi services operates smaller fleets. Probably due to support requirements and a large number of interventions.