> these cars have to come from somewhere. yes, but think how much the average car owner uses the non-self-driving car today. The car mostly sits idle in a gara

> these cars have to come from somewhere. yes, but think how much the average car owner uses the non-self-driving car today. The car mostly sits idle in a garage or parking spot, and is used, maybe 75 minutes of each day. Multiplexing riders into a pool of shared cars is one way to drastically reduce the worldwide fleet of cars. a larger proportion of total cars will be moving at any one time to transport the same number of people, which means you need fewer cars overall. It will be attractive to today's car owners because it reduces costs. to the extent that self-driving cars enable shared pools of on-demand vehicles, the innovation represents a huge disruption for the auto manufacturers who've built a business model on selling everyone a car. > The rental model may in the end provide more profits, Sure there is a business opportunity, but the change is disruptive.