Comment by pnathan

If Elon can develop an massively more efficient boring system that the rest of the USA can use; fine, he can have his personal car-way network under his house while I ride around on the highly gridded subway network in Seattle or Austin or Boise. I won't grudge him that.

Also, fwiw, I think cut and cover is a much better approach, despite the street level disruption. Ce la vie.

The question is if he can drop those costs substantially. I certainly wish him the absolute best in doing so. But, if he's going to propose building transportation systems with huge operational costs (SOV tunnels), they had better be efficient in the cost per rider mile and competitive with other technologies.