(To the unsuspecting Reader: This is a story unfolding, which is frequently interrupted by interruption of my access to the interweb. Your travelling Webmaster)
Sounds like the title of a detective story, as a matter of fact, this story is a search for something missing. Before jumping to conclusions, we have to be clear about the word missing. There is a possibility of something being really absent, but it might be equally true that we simply percieve something to be absent, when in fact it is not. It all depends on the method of observing. And that brings us straight to the core of the problem.