Who came up with this catchphrase "circular economies" and in what sense does it differ from "the economy"? People using a different medium of exchange doesn't mean they're in a separate or isolated economy. It means they're using a different medium of exchange. Is the Euro-zone a circular economy separate from the dollar-zone economy? I don't think so. I don't think the economy is geometric in any sense, either, so I dislike the term. Maybe my mind is made up. Maybe it can be changed. If anyone can elaborate the logic or point to the original promoter of the term, please do.