> I keep wondering how these civilizations might have developed if we'd discovered them in, say, 1900 instead of 1500s. there are plenty of cultures in e.g. Th

> I keep wondering how these civilizations might have developed if we'd discovered them in, say, 1900 instead of 1500s. there are plenty of cultures in e.g. The Amazon basin that are deliberately undisturbed. You can infer from these I suppose