I have read some books on style and I think that through practice I can learn to write clearly and gracefully. To practice, however, I need some things to write about, which I also need to complete any decent work. But even though throughout the day I think many different thoughts, when it is time for me to write, I often fail to think of a topic or I often know less about a topic than what is necessary to write a detailed piece. I know that this forum is mostly about how to write fiction, but I am also talking about other kinds of writing, the kinds which require me to draw upon things I know, rather than to make them up. Why does it seem like I know so little about the world, even so little that I can barely write about anything in it? How do I solve this problem?