What would you NOT LIKE to be the Voynich Manuscripts?

[Jorge_Stolfi]

Do you think it is impossible that some theory is correct? Do you think that one theory is impossible? Please share your thoughts.

"Impossible" is too strong a word.  I would say that an artifact from another planet or the diary of a stranded time traveler from the future are astronomically unlikely theories, but I cannot say they are absolutely impossible.  

More to the point: forgetting my own theory for the moment, I think that all theories that say it is gibberish are very unlikely, because they require methods that are unlikely to have been devised and chosen by someone in the 1400s, and the result seems extremely unsuited to whatever purpose the Author may have intended.

I also think it is very unlikely that the manuscript as a whole is a modern forgery. (However, I am increasingly leaning toward the possibility that Wilfrid Voynich tampered with the book in several ways, in order to sustain his claim that it was a Roger Bacon original.  Maybe even it was him who attached Marci letter to it.)

I also think it is very unlikely that the language is any "European" language - including Arabic, Hebrew, Turkish, and other languages that would have been known in Europe at the time.  That would imply that the manuscript is encrypted with a highly complicated method; which again is unlikely to have been devised and chosen by someone in that epoch.  Such heavy encryption (including a codebook-type cipher) would have made for slow and tiresome writing and reading. 

All the best, --stolfi