Using 12000-year-old stories to support the thesis that oral history is more durable than written history is only logical if we have reason to believe that written history also existed then. I believe the consensus is that writing was invented about 5000-6000 years ago.
Still, finding that a non-zero fraction of oral history survives on the order of tens of millennia is very cool.
Still, finding that a non-zero fraction of oral history survives on the order of tens of millennia is very cool.