The roads and highways of our brains get set up pretty early. When we’re born, every possibility exists. Let’s take language, for example. Within every newborn is the ability to pronounce every sound in every single language. The potential is there for the r rolling of the Spanish language. It’s also there for those guttural German diphthongs. But very early on, our brains lay down neural pathways that mesh with the sounds we hear every day, eliminating other sounds from other languages. With the possible exception
