Interchangeable ch/sh and k/t characters

[JoJo_Jost]

@ MarcoP
In my opinion, this system cannot be explained as a language phenomenon at the token or word level. But this peculiarity is yet another clear indication that the VMS is not based on substitution or even a simple abbreviation system—especially in languages like Latin, Italian, German, and other European languages of the time. Without a more complex cipher, this cannot be explained.

Probably not in Chinese either, but I’m not familiar enough with it....  

I have maybe a logical explanation, but I’m not allowed to write about it here I hope to post the explanation in my thread in the next few days.

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But there’s another piece of “evidence” that, for example, t and k aren’t interchangeable:

k before aiin (20.6 percent) (n=810)
t before aiin   (9.0 percent) (n=356)
k before ain  (38.1 percent) (n=645)
t before ain  (12.4 percent) (n=210)

"t" seems to occur significantly less frequently with the “aiin” family than "k". "t" is more likely to appear with ‘o’ and "ch."

Have Fun

Jost