> It's the moving to China for a year that would increase your understanding of Chinese culture and people far more than learning Chinese by itself.
I've never set foot in the US and yet I know lots of things about the country and its people because I can speak and write in English, certainly I do know more about the US compared to my fellow countrymen who cannot speak and write English.
The same goes for French, even though I've been to France two or three times, I know a lot more about the country, its history, its moeurs as a result of me reading books directly in French (many of them never got translated, not even into English).
> that being bilingual gave you significant cognitive advantage?
Probably not in the "intelligence tests" kind of way, but, then again, as time passes I've tended to view those more and more as charlatanism.
> Or could you be quite intelligent with above average memory
I certainly used to have a much better memory when I was a kid (I'm now in my early 40s), that's when I basically put the basis for learning all the foreign languages that I now know: English (via the public education system here), French (via my dad and via school), Italian (by watching TV and because Italian is very close to Romanian), partially also Spanish by watching football matches commented in Spanish on TV.
Come to think of it, a study trying to explain how come kids and teenagers are much better at learning foreign languages compared to adults would be more interesting.
I'm pretty sure everybody can do it wherever the average is. It's a matter of wanting to do it, that's all. Foreign workers come and pick up whatever host country language yet they're not always the brightest and also don't have exactly ideal conditions to do it. Like a sibling comment touched, you can go to Berlin and complain the language is difficult, talk English with Berliners happy to practice their English, and you'll come back learning almost nothing while they'll polish their English without even needing to travel outside Berlin. Because of choices. Learning something new is a challenge and like with every challenge, can be accepted or not.
I've never set foot in the US and yet I know lots of things about the country and its people because I can speak and write in English, certainly I do know more about the US compared to my fellow countrymen who cannot speak and write English.
The same goes for French, even though I've been to France two or three times, I know a lot more about the country, its history, its moeurs as a result of me reading books directly in French (many of them never got translated, not even into English).