Update (31 March 2017): Matt over at Gusts of Popular Feeling of course beat me to the punch on this, though I didn’t see his post until just now. His numbers are different from mine: he remembers to include numbers for U.S. servicemen (which I didn’t: they’re probably about 20,000 in the Seoul area, but that’s an estimate he gives, and makes a marginal difference), and he’s using a different source and criteria for tourist data (I went with all Europeans, Oceanians, and Canadians/Americans, since Koreans tend to assume anyone white is “American.”) Despite these differences, Sim’s argument still looks ridiculous. But Matt …