Actually, it has everything to do with the concept, design and relevance - all of which I can take minimal credit for. It's a great project. I'll keep you posted.
I got home around 10:30 to find the kids asleep and my wife falling asleep with a book. Only the lovely Willow decided to stay up and keep me company while I worked. Earlier in the day I had finished a rough draft of a new story - a story short enough for a specific magazine with limited space and hence a limited word count on its submissions. When I read it with Willow at my elbow I saw all the rough spot that needed to be polished. My wife had also marked up a copy of the story before retiring for my consideration. Around 1:00am I had the story at a point where I could go to bed. I'll let it rest a couple of days, then off to the magazine.
I must be getting old. I need a nap.