Light is a very strange ‘thing’.
I’m not sure I buy that the Voynich has been ‘translated’. Even the article you point to doesn’t claim that. And I don’t believe it’s been ‘cracked’; nor that it’s a ‘health guide’ for women.
(Why would the University of Bristol retract or disclaim the original announcement?)
https://www.bristol.ac.uk/news/2019/may/voynich-manuscript.html
Interesting points. Will have to follow that up. That "health guide" business DOES sound dodgy.