You have to know a little bit about everything to write. You need to know the names of things you never really thought about before. You have to grasp around in the dark for the right way to describe something. You have to stay informed on current events, but also have an understanding of history, science, and all sorts of topics.
Right now I'm doing ground research for Super Six. I intend to make this novel part dytopian, part alternative history, and part superhero. I'm really excited about it. However, the idea brings up lots of questions, such as how would the existence of superheroes over the last 130 years affect world events? How would it shape the world, which is known to be so ever-changing? That's what has me excited. I look forward to developing the idea more, and then sharing it with you.