Yeah the only "use case" I find is a post-apocalyptic scenario in which we're trapped in much smaller areas for our cities. So practically each building becomes

Yeah the only "use case" I find is a post-apocalyptic scenario in which we're trapped in much smaller areas for our cities. So practically each building becomes a self-sustaining city. But in that scenario I doubt we would be able to pull off such project. Seems like good sci-fi material though.