>Agriculture takes space We won't be lacking space if we eat less meat (like our ancestor). We've only started eating so (too!) much meat quite recently and th

>Agriculture takes space We won't be lacking space if we eat less meat (like our ancestor). We've only started eating so (too!) much meat quite recently and that's what taking all the space. Switching to mostly plant-based diet would resolve most issues. >It might be possible to create a less densely populated city-like structure which works like this, the question is whether it is worth the effort. No need to reduce density. Even big cities (like Paris) can procure most of its food from local farms. We just need to focus on local types of food (less exotic but not necessarily less diverse: for instance I get far more diverse vegetable from my farm than most Parisians). Going vertical is unneeded and would require far more efforts than making farming more reasonable.