The incompatibility of Voynichese with natural human language

[bi3mw]

On the original topic of this thread, I can only pose this rhetorical question: is the Voynich text compatible with a medieval cipher?

This is a good (rhetorical) question. As far as I know, before Alberti there were only rudimentary approaches ( simple substitution ) and even an Alberti-like code would probably have been decoded already. So one can only assume that, if there is an encryption, it is based on a completely unknown,  unique system. This would not surprise me. So the question is what non-anachronistic method(s) would be possible.