[higgmeister]

The highlands of PNG were only opened to civilization in 1947, when an Australian bush pilot noticed villages.

I think your dates are off. Margaret Mead's book about the isolated tribes of PNG was years earlier than 1947. "Sex and Temperament in Three Primitive Societies (1935)"

[Praxeologue]

your dates are off

These are the highlands. No outsider was there until after the war and then only the Aussies. The Highlands are still the wild west, with widespread lawlessness and crime, in a beautiful environment.