Interesting result for f3r with an ngram Genetic Algorithm

[ReneZ]

Nulls are a bit problematic for the Voynich MS text.

In the most simple case, nulls would be inserted into the text at random.

However, this would have a big negative impact on the adherence of the text to Zipf's law.
Furthermore, the null character(s) would appear in combination with almost all other characters.

Both of these things we are not seeing in the Voynich MS text. Combinations are quite restricted for all characters, and the Zipf law is observed quite reasonably.

The alternative would be that the nulls are added according to some rule, in such a way that the two effects above do not occur.
In that case, it is more like a verbose cipher.
If this is really what was done, then an n-to-m gram substitution might be the solution, and why not attack it with a genetic algorithm indeed.