den sure kalkun: No explanation here for the task. I will reuse the idea in a much clearer and better way in my future hides. Contact me if you tried to solve this one and you want to know how the puzzle was solved.

I was gobsmacked that this one lasted [i]so long[/i] before the FTF. A google search for the term "Library of Everything" yields a link to the place where this cache got its name. I heard later that several cachers found the right resource [i]very[/i] early and didn't recognise it as the solution. Quite a few other people had trouble seeing the idea even after I explained. Ah well, one of the finest thought-experiments I have ever come across and others were ignited by the idea. I guess that's the curse of having the sort of mind I have [:D]