Sotos wrote:The ability to write 3000 years ago was something new, Greeks were the first Europeans to learn this new technology (Cretan Civ a bit earlier) but literacy rate was not 99% like we have now, but probably more like 0.5%... just some elites and government officials knew how to write. And writing back then wasn't used to write literature, but just to record certain transactions and a few other things by the state.
When the civilization broke down there was no elites and government anymore. To have a government you need to have an organized civilization that produces a surplus of food and pays taxes to support those elites and government officials. If you don't have that then everybody needs to produce food and build shelter for their own families and there is no time for "high tech" like writing. And since so few people knew how to write this new tech (which was also more complicated back then) was forgotten after a few generations. Or maybe it was just greatly reduced to the point where it is difficult for archaeologists to find something.
There might be other reasons also...
The earliest known literature can be traced to Sumer in 2600 bc and the epic of Gilgamesh was written say 2250 to 2000 bc, while by 1400 bc the Cypriot Rulers were in correspondence with the Ugarit kings in the Armana letters, so there was nothing new about writing or story telling in say 1000 bc. Crete had Hieroglyphic script by 2000bc then Linear A was in use for about 500 years until the collapse of the Minoan civilisation in about 1450. Linear B, based on Linear A, then emerged.
As you correctly observed unlike the rather more advanced Middle Eastern civilisations who were creating literature and had been doing so for 1000 years, Linear B was mainly used for record keeping and accounting, and probably only by trained scribes, who probably vanished in the Bronze Age collapse. Cyprus had a script which survived.
You have however made an absurd claim that Cyprus was settled by Greeks in 2000 bc. Simply not true.
The archaeological evidence does otherwise indicate that until say 1050 BC Cyprus was more a part of an eastern Mediterranean polity, in particular the Hittite Empire. There is evidence of trade, not settlement from say 1600 bc, but the earliest sign of Greek language was about 1000bc.
As for Ethnos, plainly you confuse the modern label for a geographical location with a description of an Ethnos but I would say it is self apparent that though label Ethnos is Greek, the label can be applied to preGreek groups in the area now labeled as Anatolia. It also follows that those who settled Cyprus would have shared an Ethnos with those of their origin location, and while the geographical separation would lead to divergence, that would likley be a slow process before they were significantly different that but for an intervening event language would become incompressible and beliefs very different. In any event there was a non Greek Ethnos in Cyprus before Hellenisationwhich only began after say 1100bc.
I repeat, the Genetics do not support a Greek mass migration theory, as is so often claimed to have occurred.