[NukeMan]

I have read about this manuscript in William Poundstone's The Labyrinths of Reason. Researchers showed that the script was not meaningless scribblings; i.e. it had an entropy content similar to Polynesian languages (weird, huh?). His best guess was that it was an enciphered version of an artificial language (a la Esperanto) made up by the unknown author, and for that reason we will probably never crack it. I bet if we did we would be disappointed at its content.

[Jalapeno]

Exploring the links, the consensus seems to be that the contents of the book are most likely nothing Earth shattering, but the fact that the "code" cannot be broken in modern times is the challenge.

Of course, not knowing the language for the code you're breaking makes it difficult....

[js1138]

I bet if we did we would be disappointed at its content.

The easiest thing to encrypt would be a meaningless text -- say an al gore speech -- that has no information content.

[headsonpikes]

Artificial language by unknown author....

Sounds about right to me. Secret codes and fantastic cosmic art are phenomena not unknown to medical observors. ;^)