I gave this talk to YSI members attending the 17th UNCTAD debt conference, at which I was one of the speakers (along with Jan Kregel: the speeches are available here: http://unctad.org/divs/gds/dmfas/what/Pages/Debt-Conference-2017.aspx).

It was a hastily organised talk, and I started it with a lengthy biographical exposition on why I led a student revolt against the teaching of economics at Sydney University in 1973, my initial work on Marx's theory of value, and how this has finally led to my energy-aware production function.