While there is only so much land in any one of the existing superstar cities, in every case, there are vast amounts of land where a new city could be started. And new cities are started, taking away from the “uniqueness” of existing cities.
让我们考虑一下土地的稳定性。现有的超级明星城市只有这么多土地，而每一个新城市初建时却拥有广大的土地，而新城市一旦建立，便会带走现有城市的“独特性”。