The theory that we will never know what the VMS is

[JustAnotherTheory]

It is "said" that about 10% of all medieval mansucripts are lost forever. This includes the work of most European scribes. Only a very few portion of of copyists, or originals, survive to this day (2026).

Therefore it stands to reason if there existed an inspiration for some of the VMS' werid folios, like those in the balneary section, we will 

NEVER

know.

[Stefan Wirtz_2]

You think we can not get an understanding access to VMS since there may be no understandable script anymore, that somehow inspired the (badly copied) drawings in VMS? 
And all the text is „lore ipsum“ filling or made by a „monkey with a typewriter“?

[Koen G]

That we'll never know what it is, is a real possibility, not a theory. It is up to the individual researcher how they assess this likelihood and what that does for their motivation.