There is a moment every autism parent knows. You are sitting in a clinical office, the fluorescent lights hum above you, and someone in a white coat finishes a sentence that changes the entire trajectory of your family's life. You are holding your child's hand — or chasing him around the waiting room, as the case may be — and the word autism lands in the room like a stone dropped in still water. That was us. My wife and I, staring at each other across that room, trying to sta