"Fragment 0"
Some ideas are born into the world, much like children. Raw, undeveloped, screaming for attention as you fumble about, trying to decide what to do with it.
Other ideas simply...appear on your doorstep one day, complete and whole. Once its foot is in the door of your mind, it grabs your attention and spills out its entire existence from start to end. It can only hope for your approval as you struggle to take it in and put it down on paper.
Other ideas are mere sparks. A spark given life by the hammer of some song, some story, some picture, striking the anvil of your mind. A mere fragment of a thought. If ignored, it will wallow