Why I think that the copyist(s)/scribe(s) did not fully understand the material

[Jorge_Stolfi]

If we're looking for things that changed in Europe after 1450, I'd place book culture on top of that list.

Again, cultural models and people's attitudes are not at all monolithic things that change all at the same time everywhere.  There have always been (and there still are) places with peculiar "cultural micro-climates" where all sorts of weird, non-standard "intellectual species" thrive.  There is no such thing as a "European Middle Ages mind set".  There was an international community of scholars and philosophers, and most of the books we know from that time come from them; but it would be a mistake to assume that every literate person was part of that community, shared their attitudes and motivations.

I have been a fan of ancient history and archaeology since my teens; but before I became interested in the VMS, I had no interest in the history of Europe after the Roman Empire. I thought it was mostly about rotten nobles and kings, senseless wars, misery, ignorance, and religious fanaticism.  Bleargh.  But then, as a side effect of studying Voynichology, I learned how amazingly diverse was humanity and human thought in those times, since well before Enlightenment.   All those bleargh topics were only a backdrop to the real fun parts...

All the best, --jorge

PS. By the way, are you aware of Giovanni da Pian del Carpine, Willem van Ruysbroeck, Gaspar da Gama, Nicolò di Conti, Hieronimo di Santo Stefano, Ludovico di Varthema, Cæsar Fredericke, Ralph Fitch...