The Variable Capital

The real human labor is the variable capital, that is to affect the cost of the thing. So if it's a particularly difficult mine to to mine, then it's going to cost more. And additionally, smiths seemed to think that if an object physically couldn't move, and therefore was fixed capital,. Like a house, or like machines that were too big to move, and so on. But marks just steadily picks through and demonstrates how they are untenable. They don't really hold up well to scrutiny.