I want to know the answer to the following question:
What does the machine create by drawing a straight line between two points on the board?
All the background I'm provided with is that "Since it was quite easy to stack interconnections (wires) inside the embedding matrix, the approach allowed designers to forget completely about the routing of wires (usually a time-consuming operation of PCB design): Anywhere the designer needs a connection, the machine will draw a wire in straight line from one location/pin to another.". Is that enough to answer the question?
Answer: yes