Dupe: https://news.ycombinator.com/item?id=19414019 https://news.ycombinator.com/item?id=19414019 The paper upon which this article is based on is MUCH more in

Dupe: https://news.ycombinator.com/item?id=19414019 https://news.ycombinator.com/item?id=19414019 The paper upon which this article is based on is MUCH more interesting and quite awesome: https://www.um.es/cepoat/arqueologiasubacuatica/wp-content/uploads/2017/01/A_new_type_of_construction_evidenced_by.pdf https://www.um.es/cepoat/arqueologiasubacuatica/wp-content/u...