Eh.. not entirely true. People will still want to live somewhat in the city. Lots of people would hate living where I do "in a corn field" where you have to drive for 40 minutes to go to the closest resteraunt.

Also, MAYBE farmland is replaced by precision fermentation.. But you forget the point of agi is to allow people to do what they want.. Farmers will still exist because there will always be a demand by the masses for food grown by real people.

Cities need to spread out a bit, so people aren't stacked on top of one another.. But I think most city folks want to be close to their favorite restsraunt, and to not have to worry about their dog getting eaten by a rogue black bear or mountain lion.

Certain things won't change in the countryside, because people won't allow them to be changed. I'm not gonna be okay with you using agi to kill all mountain lions in the area, they are an important part of the environment, event if they are sometimes terrifying.