blue sky thinking from Tesla, far from being delivered at scale. doesnt solve many problems either, reliable generation of power (esp at high latitudes), time transfer of power, maintenance/replacement of batteries. a lot is based on hope that science will solve problems because it has done in...
not enough power in the surface area available. there a few experimental vehicles that have done experimental runs, super lightweight running in the desert, not scaleable to real world use. the battery problem is basic physics (as i understand it), they are chemical stores of electrical power...