The complexity and expense of TU's will basically limit their use to large-ish organizations which will lead to political borders as in RL. But will there be some mechanicism that allows "private ownership" of land? That is, if an organization wants to rent out smaller parcels of its 1km TU to individuals or companies (e.g. a government allowing private land ownership within it's borders), what might that look like in-game? It seems like there should be some kind of mechanism that facilitates that, right?