[or aiin]

[Davidsch]

What Torsten writes about composites is far less trivial. But there is the question of spaces.

Spaces is an entirely different discussion, let's go back to the subject  [aiin]

Perhaps trivial, but look at ain, aiin, dain and daiin. 
We can find some oi and oii but those counts are very low. The ei and eii occurs only a few times.

Let ain = 1 then dain = d1 and kain = k1
(or let aiin =3 then daiin = d3)
 
From the perspective of ciphers and time, how probable or improbable could it be that:
Let ain =123 then daiin=1223
Let dain = d456 then daiin=d4556

or is aiin a homophone which equals ain?