More science on acquiring new language

I am still a language learner, whether it is keeping my French and German, learning new things in English or my latest adventure (Mandarin!) I am always learning language. Spanish is my native language, I started French at the age of 5 and German and English at 22. I am at a disadvantage in Mandarin... Or may be learning French at such an early age gave me an advantage for life and made me a "mental juggler"... Read this article.