Just looking at the pieces of technology already in place, I think Tesla has a cunning plan for supercharger use. Some superchargers get very congested especially during peak travel times. As the fleet grows, Tesla will have to expand the network, but I think they have a plan to help maximize use of the existing superchargers when things get crowded. Tesla previewed the auto plug in robot a year or so back. They also got summon to work with recent releases of the code. I think the cunning plan is to use the technology in auto-park and summon for a more practical use. With theses technologies, Tesla's cars will be able to be parked in line for a supercharger, the owner can go off and do something and the car will do the following: 1) When it's the car's turn, it will pull itself into a supercharger spot 2) The robotic arm will plug the car in automatically 3) If the car has awareness of how many cars are in line, it may just charge enough to get to the next supercharger with some reserve, or it may charge up as high as the owner wanted it to charge. 4) When done, the car will unplug itself and move to a non-supercharger parking place nearby and wait for its owner to return. This will maximize throughput on crowded superchargers and the owners don't have to be there to move the car. Auto-park is becoming common on a lot of cars, so that technology isn't all the far out there, but summon is pretty unique to Tesla and I thought it was kind of an odd add on on top of autopilot. But it makes perfect sense if it will be used with the next generation of superchargers. I could be wrong, but Tesla has all the pieces to make this happen. I'm surprised I haven't seen anyone else suggest it as a possibility before now (though someone may have and I missed it).