Thanks Aliska. Glad I'm not alone in remembering that these "discoveries" are not new.
I didn’t know...might be interesting to read:
THE MYSTERY OF EASTER ISLAND PUBLISHED IN 1919
A Group of Easter Islanders Outside the Church Door, Mana Expedition, Easter Island
Date between 1914 and 1915
Source Katherine Routledge: The Mystery of Easter Island, 1919
https://en.wikipedia.org/wiki/Aku-Aku
Aku-Aku: the Secret of Easter Island is a 1957 book by Thor Heyerdahl[1] published in English the following year. The book describes the 19551956 Norwegian Archaeological Expedition’s investigations of Polynesian history and culture at Easter Island, the Austral Islands of Rapa Iti and Raivavae, and the Marquesas Islands of Nuku Hiva and Hiva Oa. Visits to Pitcairn Island, Mangareva and Tahiti are described as well.
...Heyerdahl compared the highest-quality stonework on the island (present in very few cases) to pre-Columbian Amerindian stonework, such as at Tihuanaco. He said of Ahu Vinapu’s retaining wall, “No Polynesian fisherman would have been capable of conceiving, much less building such a wall”.[4]
https://www.newsweek.com/easter-island-heads-mystery-solved-rapa-nui-drinking-water-1161827
Easter Island Heads Mystery Solved? Rapa Nui Civilization Built Moai by Freshwater Locations