1. Why should I believe Larkin Mitchell/Denise Schmandt Besserat and not others Egyptologists? He didnt provide evidence what so ever.
2. From your site "Because Egypt provides yet no indication of any antecedents to writing, it was logical to assume that phonetic writing leap-frogged from Mesopotamnia to Egypt about 3100 B.C.. "
It wasnt logical at all. Again this wanna be famous Larkin Mitchell/Denise Schmandt-Besserat stressed out that that in Egypt there is no indication of any antecedents to writing. So he/she assume and conclude that phonetic writing came from Sumeria.
In Sumer, they used the "rebus" style (like a rebus puzzle.)
In Egypt, they used the "rebus" style.
That's why it's logical.
Let us not assume that everything left from Ancient Egypt (or Sumer, for that matter) has been found.
The claim that an association is logical is not a claim that it is true.
Looking at your side of the coin, all you have is what a few fringies have written in an effort to sell books.
So, that's "logical?
That could change. But what certainly wont change is the ridiculous and groundless claim that Egyptians came from some "island in the west," regardless of the evidence against it.