So the posts are the graphic or part of it, the guy who wrote Alice in wonderland also wrote a book on mathematics and what he created could be used for a Cypher. I also believe if you near the text they create an audio file somehow predicting something that has yet to happen. Just a thought, everything we need has been given we just have to decode it.

https://en.m.wikipedia.org/wiki/Rouch%C3%A9%E2%80%93Capelli_theorem

https://en.m.wikipedia.org/wiki/Alice_and_Bob

https://en.m.wikipedia.org/wiki/Communication_complexity

https://en.m.wikipedia.org/wiki/Schur_complement