When all cars are self-driving, it gets even better because the cars will exchange information with each other over short-range RF networks. Paxos-like intercar

When all cars are self-driving, it gets even better because the cars will exchange information with each other over short-range RF networks. Paxos-like intercar signalling of intent will be a huge safety boost. But as long as self-driving cars share the road with human-driven cars, the automatic cars will still have to drive defensively, assuming every other vehicle is potentially a Byzantine adversary.