Did you ever have an idea for a book that poses major problems? Of course you have. I have. The major problem with most of them is that they suck, and will never, ever turn into a good book. The solution to these ideas is simple: cast them aside. Then there are two more categories of problem idea, and I don't know if one of them can be fixed.
1. This is a a difficult idea to land. I'm working on a new book built around an old idea I've been trying to work out for years. I've written three bad books (at least) based on this idea, and I'm outlining it again. It's science fiction with actual science and that makes it hard to do. I don't even have characters yet. I have pages and pages of questions I have to answer before I can start outlining. I might get there.
2. Then there are the controversies. I've been reading Sophie's Choice, which is certainly controversial in about forty different ways on its own, but then I had an idea. I'm not even going to tell you what the idea is, because it scandalized me. Something to do with global politics, shall we say. I ended up staring into space for a while, wondering if it could turn into a book. Yes it could. Would I want my name on that book? Yeah, not so much.
Ideas, they are trouble!