"When Tony Stark was seventeen years old, he built his first AI. On that day, he ceased to be his father's creation, and became a creating force in his own right. That one act likely saved his life, and not always in the most obvious ways."

You're supposed to know if you're a top or a sub by the time you're twelve. Fourteen at the outside. It's biological, the researchers say. It's not a choice. But sometimes Jon thinks that for him, it really was.