Do you think there's a genetic element in ability to learn languages?
I have an idea it's linked to musical sense, and IS genetic to some extent. So in those experiments on the tv they would need to compare id. twins with none id., and siblings, and unrelated.
Then there's a difference between chatting, comprehension, reading, writing gramatically in a foreign language.
Judith - I agree with you about different methods for different people.
Husband and I taught ourselves hebrew from children's books, but just to be able to translate. We learnt a bit of grammar too - it's quite a simple language once you know the alphabet.
But neither of us can speak hebrew/ivrit.