To GRID or not to GRID?
the boundary of the recipient is here a chasm.
gradually extended towards the inside of the contrada it manifests itself in a series of voids that define solids.
these solids are appropriated by the inhabitants that dig and perforate its membrane.
i'm now going to zoom in to develop a strategy that can be moltiplied/prolifereted at a larger scale.

I guess the top left it is just a part of the model. The perforation on the surface seems too regular. For a sectional model, I was thinking more on extreme way in which this wall get used. So for example on the left it acts as containment wall, as hard boundary, as hard edge and on the right it disintegrates and change to allow inhabitations... Think formally at how this wall (or recipient), received spaces (maybe of different scales), programs... also I think you have to work in the same time with the recipient that separate at level zero and not only at the underground level. It is a boundary, that changes with your story, that form these contradas in the cities. It is not always underground, it is not always overground. You have to work on both and think when and why one or another take over. The writing of the formal manifesto should help you to clarify these points.