In the book Deliver from Distraction the authors (at least one of whom has ADHD and is a psychologist) describe everyone else as having "Attention Surplus Disorder". They go into some detail describing how odd it is for someone to be able to sit still for 8 hours a day doing something really boring. It was an interesting counterpoint to the idea that ADHD is even a disorder... but rather a set of traits that have always been useful in some areas. Similar point to this article. I recommend the book btw, it was helpful to me in embracing the unique gifts that come with the challenges of ADHD.