TL;DR
A way to break down unused items back into their basic components.What ?
It would be just like a factory building but instead of combining two resources to make a product, it takes the product and recycles it back into the two resources it took to make that product.Why ?
This would allow for more complex pathways. You could create feedback loops or product inhibitors to regulate what/when things are being made. Over flow pathways, production cycles, and much more. It will increase the number of different ways to create higher tech items ultimately expand the possibilities of what one can create in this amazing game.-AJay