>having a second system running that can't coordinate with the self-driving system would likely make the combined system less safe. Even if communication betwee

>having a second system running that can't coordinate with the self-driving system would likely make the combined system less safe. Even if communication between the two were possible, I'd still imagine that just having a single system operating the care would be much more desirable. Multiple redundant systems that do not need to talk to each other to coordinate is generally safest. And if the existing systems can not be coordinated with and can make cars less safe because of this, then how are drivers managing it?