Sorry if it wasn't clear, but the problem of land use is not legal. Indeed you can build your city whenever you have enough will to and it has never been a prob

Sorry if it wasn't clear, but the problem of land use is not legal. Indeed you can build your city whenever you have enough will to and it has never been a problem. The problem is that humans destroy the ecosystem of the place they live in. And if humans use 100% of landmass then 100% of planet ecosystems are destroyed. > it's possible to convert ground dedicated to cattle or agriculture and develop that into cities Unless you find a way to generate food out of thin air, it's not possible. People living in the cities need to eat something.