We can reveal the affect of adding far more of the variable resource, say labor, to a set level of capital and find out what comes about to output. For demonstration reasons in economics, we regularly make widgets, https://www.youtube.com/watch?v=-nQTR6bXhfU&list=PLZ3DkIWtVYetfvXsAvY04--yisQJg2WWI&index=9&pp=iAQB