The epithets being used as put-downs for Modern Monetary Theory (MMT) are growing. But some of the good old terms – that one might actually apply to mainstream macroeconomics – are also in currency. An article in Project Syndicate (May 27, 2019) – Japan Then, China Now – declared MMT to be “the latest strain of voodoo economics” that is “alluring for the Trump administration”. The article by a Yale University lecturing staff member (and former investment banker) really just reminds us why students should avoid studying economics at that university. The voodoo, I am afraid is actually on the other foot! There are some fundamental errors in the logic in the article that highlight why MMT is a superior paradigm for understanding how the monetary system actually operates in comparison to the mainstream logic that the author uses against it.