Yesterday I wrote, in part, about the way in which the term long-run is mis-used by the mainstream economists to assert “natural rate” theories, which essentially deny a role for government macroeconomic policy in stabilising the business cycle and reducing mass unemployment. I also get asked by readers (several times now) to provide some discussion of what were known as the Cambridge capital controversies in the 1960s and 1970s. They are related in fact to the notion of the long-run. These were rather esoteric debates which are now largely ignored by the mainstream despite the fact that the results of the debate showed, beyond any shadow of doubt, that the whole body of neo-classical distribution theory (that is, marginal productivity theory) is plain wrong. MPT was developed to justify the claim that capitalism delivers “fair” income distributions because everybody gets back what they put in. The Cambridge debates killed the legitimacy of those claims. But my profession continued oblivious because the results would have meant that a major part of the mainstream apology to capitalism would have to be jettisoned. Who understood the debates anyway? It was easy to just sweep the results under the carpet. I still plan to provide some commentary in this regard as I used to teach a course in capital theory covering these debates. But in thinking about them I started thinking of prior questions which also feed into a policy debate in Australia at present. It relates to educational outcomes and class.