I'm not sure that it's a language thing. I think many (most?) college-educated Japanese, Koreans, and Chinese can read and write in English. We also seem to have more Russian LWers than Japanese, Koreans, and Chinese combined.
According to a page gwern linked to in another branch of the thread, among those who got 5 on AP Physics C in 2008, 62.0% were White and 28.3% were Asian. But according to the LW survey, only 3.8% of respondents were Asian.
Maybe there is something about Asian cultures that makes them less overtly interested in rationality, but I don't have any good ideas what it might be.
I'm not sure that it's a language thing. I think many (most?) college-educated Japanese, Koreans, and Chinese can read and write in English. We also seem to have more Russian LWers than Japanese, Koreans, and Chinese combined.
All LW users display near-native control of English, which won't be as universal, and typically requires years-long consumption of English content. English-speaking world is the default source of non-Russian content for Russians, but it might not be the case with native Asians (what's your impression?)
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