The vast, vast majority of Uber (and taxi) trips happen in densely populated areas where autonomous cars are likely to provide the most benefit. Also, I don't

The vast, vast majority of Uber (and taxi) trips happen in densely populated areas where autonomous cars are likely to provide the most benefit. Also, I don't think self-driving cars will see wide availability as a product unless they can serve a big majority of driving use cases. There will be an adoption curve, and given the price of an automobile, it will be very long.