> At the very top, the US excels at math. Did you assess every other school system "at its very top" and compare? This seems to be very clearly a double stand

> At the very top, the US excels at math. Did you assess every other school system "at its very top" and compare? This seems to be very clearly a double standard. Consider that IMO numbers are going to be biased due to the US's larger population compared to other highly developed countries.