In my way to seek the truth about Leviathan, I found this:
http://steamcommunity.com/app/297350/discussions/0/619574421201992989/
copy/past of the dev's post:
I admit I studied some of those things in the university, still....should I take another degree to understand what is going on there?
The dev promised a document about the full story on December (around 20th), than on 31st he posted he got a delay, now we are fully into January and still nothing.
I expect something of the size of The story of the Vivian girls, in What is known as the Realms of the Unreal, of the Glandeco-Angelinnian War Storm, Caused by the Child Slave Rebellion at this point.
EDIT: Another post in the same thread, by a user (dunno if he is serious or just trolling):