Why should I have a meaningful opinion about this? Ask Milo Rossi, Youtube's resident young fast-talking archaeologist (@Miniminuteman). I only know that there is a more detailed article in New Scientist and that it has been known for quite some time that Amazonia in pre-Columbian times was more densely populated than had been thought for a long time -- the relics of civilizations without stone buildings disappear early in a rain forest environment. Which accords with the reports of early explorers (or rather, conquistadores -- on the whole, not very nice people, it is no accident Werner Herzog cast Klaus Kinski (not a nice person, either) for Aguirre).
Btw, did you know that combining medicine and astrophysics leads to revolutionary methods of treating fever, as Randall Munroe reports (https://xkcd.com/2877/)?
Україна це Європа: https://www.instagram.com/nastia_svoboda/p/C0w_ZqnNTUR/