This is a bit odd considering that Musk knows that even a substantial minority of self-driving cars on the road would dramatically reduce traffic. Does he think we can deploy tunnels in every city before we can get to, say 25% self driving cars? I'm not saying there aren't other benefits to reshaping the urban landscape this way, but traffic is a problem he is already in the process of solving in a way that seems much more likely to scale to, well, anywhere, without having to do anything to existing infrastructure. And anyway, once we get to something like 25% autonomous cars, won't the safety revolution put pressure on the government to quickly phase out permits for human-driven cars?
