Technology will have a massive impact on the way we learn, the way we live, and the way we work. Some believe technology will even eradicate the need to learn language at all

Pretty much anyone can become fluent in pretty much any language at pretty much any age. It's not even true that young children learn languages faster than older children or adults: if you expose different age groups to the same amount of instruction in a foreign language, the older ones invariably do better, both initially and in the long run. Learners of any age can achieve a brilliant, even native like, command of the vocabulary of another language, including such challenging structures as idioms or proverbs.