Its also the 'labor theory of value'. That's the economic theory that Communism is based on. It has never been accurate and wasn't even considered legitimate

Its also the 'labor theory of value'. That's the economic theory that Communism is based on. It has never been accurate and wasn't even considered legitimate during Marx's lifetime. It has possibly the worst track record of predictions of any theory ever conceived by people. Yet somehow academics still reference it. Nobody who actually is impacted by making the wrong economic predictions does though. Funny that...