We speak of evidence for having had writing systems, but it’s worth noting that we preselect for mineral-based writing systems. Paper/papyrus/neet-weavings tend

We speak of evidence for having had writing systems, but it’s worth noting that we preselect for mineral-based writing systems. Paper/papyrus/neet-weavings tend to rot if made from organic matter. We certainly find marked sticks where preservation of organic matter is possible, I.e. frozen crag falling victims. The article references these jungle cities to have disappeared around 1400ce, and I wonder what this estimate is based upon and if it’s not 1500ce instead, as disease could be the culprit…