I'm wondering how the occupantsresidents will create enough wealth/value to fund the high-velocity (money, not speed) costs. Takes a lot to keep such a place afloat & moving to any degree worth living on.
Of late a comparable proposal has been floated for locating a ship just outside LA's or SF's international waters boundary so foreigners could work in the area without visas. The key problem is how they could generate enough money to warrant supporting it and attracting people to actually do it at such high infrastructure costs.