Comment by perching_aix

Could be, but having seen a couple of his crashouts, I don't really feel like buying that. According to his Wikipedia page, he's also been living in the States for about 25 years, and been a citizen for 15. If he couldn't achieve appropriate mastery of the English language with so much time spent collaborating with others using it essentially exclusively, and having lived for decades in a country where it is the native everyday language, I'd find that legitimately more impressive than the opposite.