If you think of your life as a kind of computation, it's quite abundantly clear that there's not going to be a final answer and there won't be anything particularly wonderful about having the computation halt!
The churning of a human mind is unpredictable, as is the anatomy of the human heart.
Selling a book or story has never become absolutely automatic for me.
I like a book better if I can't predict what's going to happen.
If all else fails, there's always print or web zines.
Some ideas you have to chew on, then roll them around a lot, play with them before you can turn them into funky science fiction.