My theory…part of the deal with GM and Ford is for them to build superchargers at their dealerships. this will scale in a huge way with 7000 GM dealerships and 3000 ford dealerships in the US. Tesla can knock out a supercharger for $40k vs $250k that it would take GM to do it. tesla will maintain the superchargers at along routes, but this will fill in every town along the way. This will also allow people to browse the dealership lots while charging so big win for them. Win for EV drivers because you would be very close to a supercharger no matter where you are so range anxiety will not be a thing. Win for tesla because they will control the infrastructure Like how Microsoft control the operating system. The only risk is monopoly issues.