Lee, "How could Mesopotamian cultural influence have come from South Africa? Maybe I'm misunderstanding you."
As you mentioned, a melting pot of ppls. My meaning is genetics, (not Mesopotamian cultural influence) that the DR possibly could've been 'fathered' by just about any tribe anywhere within traveling distance, S. Africa and Meso tribes included...or at least partially genetically influenced the DR.
IMO, regardless of their Genetic make-up, etc. they were influenced by the Mesos.
On their writing methods: You had posted yesterday pics showing the AE and Mesos writing methods, (or systems) was very similar at their beginnings, but then they evolved separately into the 2 very different writing methods we know today.
IMO, this seems to support the idea that they were once friends, trade partners etc....but then parted ways soon after the use of pictograms began, and this is much earlier than what most of the evidence supports.
(Maybe the AE didn't like Cuniform.)
Campbell's Chamber roof blocks are Tura Limestone until proven otherwise.
THE Cartouche in Campbell's Chamber IS Authentic, as are ALL other RC's Glyphs, until proven otherwise.
"This Forgery 'theory' has more holes than a sieve basket."