I read some books, and I thought, 'This is better than sliced bread!' and a month later, I couldn't remember thinking about it. And I've read others that were kind of a slog, and I've put them down and come back six months later thinking, 'Wow, this is great.' So, you know, things change all the time.
When I turned 35, I thought, 'Mozart was dead at 36, so I set the bar: I'm going to start writing a book on my next birthday.' I thought historical fiction would be easiest because I was a university professor and know my way around a library, and it seemed easier to look things up than make them up.