Houses made of grass and dirt. Your most immediate thought is probably mud huts, and the closest thing you’ve probably seen to it is adobe houses in New Mexico, but cob construction is by no means as unappealing as the things that come to mind.
Cob is easily and inexpensively constructed, and as you will see, virtually indestructible. It is also naturally more adaptable to its environment making it low maintenance meaning less heating, cooling, and other expenses.
Imagine how this technology changes everything. As modernized versions of this and similarly progressive techniques grow, homelessness and multimillion dollar construction projects can quickly become a relic of the past.