The Impossibility of Double Gallows

[Emma May Smith]

6) Their similar role and their similar appearance suggests that whomever invented the Voynich script did so with a clear understanding of not only how the underlying language worked, but also how languages in general work. The gallows itself as a character category is also a linguistic category. [emphasis mine]

What did you mean by that?

What I mean is that the inventor of the script (and I do believe it is invented) had an understanding of the sounds of language and how to categorize them. The categories they knew may not have been the same as the ones we have today, but would find parallels in them.

Researching medieval "linguistics" (not a term they would have known or used) is something I mean to do given the time and opportunity. There were likely only a few models in use at the time for understanding speech sounds, so it should be possible to gain an insight into their thought.