Good article on the impending problems of Dunning Kruger as applied to "popular maths". https://twitter.com/FraserNelson/status/1249253689338060800
To be clear, charting like that of the FT *exacerbates* the problem because the assumptions made in collating the data across countries are not clear enough. They're comparing apples with oranges, pretending it doesn't really matter.
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