> The problem is though, is that most people will try to get away with 'ignoring the complicated bits' for as long as possible, especially if for instance, the thing in question happens to be an economic liability that everyone wants to play hot-potato with.
Sure: in the real world, economics is often a way for people to justify doing what they already wanted to do. But there's nothing about the math of "resource theories" that forces us to ignore the complicated bits.
By the way, you never answered my question about where the book says "in economics liabilities created during production can just be ignored". I would find it shocking if Brendan and David were making serious pronouncements about economics! If they did, I'll tell them to fix it. I can more easily imagine that they were trying to keep their examples very simple.