I think the key to fully autonomous vehicles is a three part solution: Smart cars, smart roads, and car to car communication. The current view is to build all

I think the key to fully autonomous vehicles is a three part solution: Smart cars, smart roads, and car to car communication. The current view is to build all the intelligence into the cars, but as we've seen from Tesla, this effort is hard and there are an unlimited number of variables the vehicle needs to adapt to. However, if the cars were able to communicate and get information from the road itself (speed limit, turns, traffic control etc) then the car doesn't need to be able to figure this out. Yes, it'd take awhile to retrofit roads. Car to Car communication could be used to let vehicles know how the traffic is flowing without needing to use radar/lidar to determine when traffic is slowing ahead. These are very basic thoughts on the subjects.