Nobody knows what will work until they try it. Some of comics' biggest success stories in recent years have explored subjects that no one was writing about at the time - stories no one had any reason to think would succeed. My advice? Write what you want to read. You'll have more fun doing it - and if all else fails, you'll always have at least one loyal reader.
Scott McCloudMy dad was an inventor, and I think I've always had a rosy view of technology, or at least its potential.
Scott McCloudI don't think the potential for comics in nonfiction has been exploited nearly as much as it could be.
Scott McCloud