http://health.howstuffworks.com/tibet-altitude-sickness.htm
Average settlement altitude in Tibet: 16,000 ft.
Facts are utterly stubborn things.
"There is considerable variability between individuals and between populations in their ability to adjust to the environmental stresses of high mountain regions. Usually, the populations that are most successful are those whose ancestors have lived at high altitudes for thousands of years. This is the case with some of the indigenous peoples living in the Andes Mountains of Peru and Bolivia as well as the Tibetans and Nepalese in the Himalaya Mountains. The ancestors of many people in each of these populations have lived above 13,000 feet (ca. 4000 meters) for 5,000-10,000 years."
http://anthro.palomar.edu/adapt/adapt_3.htm
Facts are utterly stubborn things.
Right. And you've got to bring relevant facts to the study for them to have any bearing on what we're examining.
The important datum in this question is, what is the differential between the average settlement level of the region, and the area where these artifacts were found?
So. What's the average settlement altitude in Turkey?
Some facts are irrelevant...