This feels akin to saying a subway or hospital or giant computing entity can easily upgrade its mission critical systems. Does not feel realistic. These thing

This feels akin to saying a subway or hospital or giant computing entity can easily upgrade its mission critical systems. Does not feel realistic. These things tend to move slowly once stable. A client is usually easier to upgrade than a server, if all the brains live on the server and the system achieves stability it would rarely be touched; now it's responsible for life and death. Furthermore it seems that the paradigm of automatically updating each car independently at night ( like modern computers/etc ) would be less prone to major failure. Updates can be rolled out automatically when the vehicle is not use and can be done in stages, not all in one big shot. Lastly what about bugs and fault. With the cars and systems still being private we get to reuse and evolve from the legal structure we have now, especially including 'fault'. In this utopia idea proposed we have a big official system keeping us all safe. Would imagine the first big failure to be expensive with a lot of finger pointing and a broke city that won't want to pay for all the injuries and damages, or would need a bailout to do so. This idea is not fault tolerant or distributed enough to to live with our current amount of chaos. Getting to utopia is harder than it sounds. I don't want to live in a vehicular system with a single point of failure even if that single point of failure is an organization such as a government and this is seen as a utility. Possibly this day will come, but the idea is way ahead of its time. Good luck!