For "August," PM consults etymologist Rex Curry about deciphering ancient codes and symbols to see how (and if) it can be done.
Fringe got its facts right: Language does require repetition, and cracking complex codes requires some sort of key that compares codes to another language. For now, it seems that Astrid and her Fringe compatriots are out of luck when it comes to unlocking the mysteries inside the Observer's notebook.
You can read the full article a Popular Mechanics: Fringe Is on the Right Track With Code-Cracking Science
You can read other "Fringebusters" posts here.