It's basically that they want to build city made of Gigafactories in the desert (what they produce is apparently not yet defined). Also it's octagonal for some

It's basically that they want to build city made of Gigafactories in the desert (what they produce is apparently not yet defined). Also it's octagonal for some reason and half of it floats. There are lots of flashy renders and a slick video but that's about the measure of it.