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So afaik the 27,000 old samples come from the natural material layer, volcanic rock. It is a matter of speculation whether that layer is sculpted by humans or the elements.
That is why there is a question mark as to the human influenced age of the structure, because it's built over an existing natural formation.
AFAIK there's no way to determine if the 27,000 layer was influenced by humans at this time.
I believe it's entirely possible, just there's no data.
That is why there is a question mark as to the human influenced age of the structure, because it's built over an existing natural formation.
AFAIK there's no way to determine if the 27,000 layer was influenced by humans at this time.
I believe it's entirely possible, just there's no data.