I've come across something that doesn't seem to be added in. You see, wires cannot stack, obviously, but they can't be directly next to each other else the become one wire. That doesn't seem right to me. Albeit, graphine has the same disability that it cannot touch another set of itself lest it not function properly, but silicon can be stacked and placed next to itself without messing up its fuction. WWLD functions like graphine in that two pixel threads cannot be touching lest they become a siingle thread. 

Why can't we have it so WWLD is only used as a single pixel thread. Say you have a four by four square of WWLD and then spark it, the spark travels the way WWLD was drawn in. This also makes control clicking with wire world a little difficult. Instead of making it two wide, you can only make it one pixel wide. 

Imagine the saved space.