The cars will be programmed to always ensure that there is enough room to stop the car safely when something unexpected happens. BMW already has a system to automatically stop the vehicle safely if the driver is suddenly incapacitated. And Volvo has one that stops you rear-ending someone. Pretty soon we'll have cars that are pretty tough to crash, even though the human will still drive it almost 100% of the time.

That will be amazing, I can't wait!