Repetition of letter groups

[ThomasCoon]

So would that mean that each Voynich word encodes one plaintext letter in binary? 
Or are spaces only used when there could be ambiguities?

The latter. For example, there are a lot of cases where "d" or "aiin" are separated (sometimes "d" is attached to the end of the preceding word, sometimes it stands alone), and other times they are combined. The space between them could show that they are NOT to be read as one whole group, but two separate ones. 


I am testing out the next steps of this theory (figuring out the group patterns) and will post the results later today. I don't want to say too much in case I am on the right track, but there's also the possibility that I'm completely wrong.