Yep... Absolutely. And the more advanced technology was built under the newer less advanced technology. How did they do that I wonder?
Part of the theory supporting this timeline of change comes from the age of Gobekli Tepe at 11,800 years ago. Will this change when they find one even older? Even more advanced?
Gobekli Tepe really fascinates me. The problem with a lot of these ancient civilizations is most of them are under 400 feet of ocean.
In my opinion, the great pyramid and all of the other megalithic sites in Egypt, are even older than Gobekli Tepe. They've been mis-dated for a very, very long time.
I have seen examples of cave art from 10 or 11 kya. It is far inferior to the quality of cave art from 20 and 30 kya in the French caves.