BackToBaseball (backtobaseball) wrote,

Sources of linguistic diversity

OvercomingBias quotes a New Scientist article that claims:

"This [Papua / New Guinea] linguistic diversity is not the result of migration and physical isolation of different populations"

I'm skeptical. Have you ever tried to cross from one valley to another on foot in the tropics? Where my parents grew up in India, it's an incredibly arduous daytrip -- even when there's a trail -- and you invariably find another dialect or language spoken when you arrive.
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