geoffreycaveney's Judaeo-Greek theory

[Koen G]

Zhe: all things individually might be possible, but I have some reservations.

1) When you turn English into abjad spelling (I'd really prefer to call it "dropping vowels" since abjads are something very specific), you notice that there are certain things you cannot do. For example, it's often very hard to drop initial vowels. The word "initial" would become "ntl", which is hard to revert properly. However, in his decipherment Geoffrey does take such liberties with adding vowels.
2) In isolation every aspect of Geoffrey's method works to some extent. But what if you combine them, especially consonant flexibility and vowel dropping? 

I'm not completely certain yet, but for now my impression is that it would be a one-way cipher. Flexibility is so great that the initial meaning is not recoverable.