11,000 years ago was before agriculture and domestication of animals. Had to do a lot of hunting and gathering to get all this manual labor done. Someone kad to be in charge too with a vision.
As far as we currently know. This site may have been the prototype.
Since the neolithic revolution spread to Europe by way of farmers moving out from Anatolia—it’s likely this kind of monumental architecture is what provided the cultural impetus for the move. As well, it suggests the neolithic revolution quickly caused overpopulation—and thus the need to move out.