Earthborn animals do this thing, inside their brains--a sort of firing-off of synapses, controlled insanity. While they're asleep. The part of their brain that records sight or sound, it's firing off every hour or two while they sleep; even when all the sights and sounds are complete random nonsense, their brains just keep on trying to assemble it into something sensible. They try to make stories out of it. It's complete random nonsense with no possible correlation to the real world, and yet they turn it into these crazy stories. And then they forget them. All that work, coming up with these stories, and when they wake up they forget almost all of them. But when they do remember, then they try to make stories about those crazy stories, trying to fit them into their real lives. ...They change what their stories mean. They transform things so that the same memory can mean a thousand different things. Even from their dreams, sometimes they make up out of that randomness something that illuminates everything. ...Even if the vast majority of them are wrong, even if ninety-nine of every hundred is stupid and wrong, out of those thousands of ideas that still leaves them with a hundred good ones. That's how they make up for being so stupid and having such short lives and small memories.