The Voynich manuscript, has many of the same elements as the Hypnerotomachia Poliphili; the latter is recognized as fiction and many people want to portray the former—as reality. My guess is Leon Battista Alberti wrote both. If it wasn’t Alberti; it was someone with links to him.
I write fiction; I am not a conspiracy theorist. Do I believe large (and often religious groups) mess with society? Yes, it is obvious they do. Many in the media don’t have the talent to write real fiction, so they spin crap; which, many mistake for valid research.