Language Acquisition in babies

This is a fascinating Tedtalk from Patricia Kuhl about how babies acquire language.  It confirms the long held belief/research that the younger we are exposed to language the more readily we can learn, and that they can open up different pathways in the brain to absorb different sounds which we close off as we get older. She also suggests that the research reveals how important it is that we have real human interaction in order to learn language and not just video and audio input. Great news for language teachers, but something we have all believed for a long time.