How many people could have written the Voynich?

[Mark Knowles]

If a further requirement is that he must have been acquainted with the Alsace style of art, had some disagreements with the Roman Church since he used no obvious religious signs, showed interest in building swimming pools, wrote in a language that has not yet been written, and was most likely a mystic, you can narrow down the search to Nicholas Kempf from Strasbourg, who studied and for some years taught at Vienna University, served as a prior of two Carthusian monasteries in the Slovenian speaking land, wrote over thirty books of philosophical works, poems, theological treaties (including Mystical theology), and bought a land for the monastery where the monastery build an open swimming pool for public baths.

I don't think we can say that the author(s) had some disagreements with the Roman Catholic church as there are few religious symbols. I have thought a little about this, should we expect religious symbols in a non-religious book? For example, you can be a committed Roman Catholic today and very easily write a book with no religious symbols, say if you write a cookery book or computer programming book would you include lots of crosses in it. The cross is a sign for all Christians not just Catholics.

It is not clear that the author(s) showed interest in building swimming pools, but rather had an interest in bathing in pools for health reasons.

I would suggest wrote in an unknown script for a known or unknown language or alternatively wrote in an invented cipher script.

When you say that Nicholas Kempf wrote in a language which has not been written down, what exactly do you mean?