Status Updates From Guns, Germs, and Steel: The...

After a stalemate we do then see a sudden explosion in agriculture and the replacement of the Jōmon people with the Yayoi. This may be improved Korean agriculture led to their emigration to Japan which led to their out competing and out breeding the Jōmon. Today we see that the Ainu are most like the Jōmon, while the Japanese are more like the Yayoi.