And I am in 100% agreement. But if Elon can make you think that the last 10% doesn't matter, he doesn't have to do it. I personally don't think it will work until the cars are all operating on the same networked system. If there's nothing but GoogleCars on the road, Google won't run into itself. Start mixing Google and Uber and Ford? Yeah, if they're all using the same benchmarked software and they're all networked, maybe. Add humans? Or ripoff Chinese autonomy conversions? It'll never get there.
In an ideal world, I think we'd develop a system that anyone could tie into. I don't really want a Tesla network dominating the road because it feels so anti-competitive, BUT all the technical hurdles of having an openly licensed API that is safe and effective leave proprietary road networks as the only real possibility in my mind. Not because an open system like that can't exist, but because it seems there's no feasible way to implement and maintain it in the status quo with all of these companies working against each other for the same goal.