Many readers have written to me asking me to explain the British Treasury view during the Great Depression. This view was really the product of several decades of literature which culminated in the political process during the 1929 British election where the number one issue of the day was mass unemployment. The Treasury View was thoroughly discredited in the immediate period after it was articulated and comprised one side of the famous Keynes versus the Classics debate. When propositions – such as the Earth was flat – are shown to be incorrect constructions of reality the ideas cease to be knowledge and instead become historical curiosities which allow us to benchmark how far our education systems have taken us. However, the same cannot be said for my profession.