Links between isolation and the multi- lingual cultures of new guinea?

Question

Links between isolation and the multi- lingual cultures of new guinea?

Answer 1

very intriguing question. isolation could have caused Mendellian drift of genetic characteristics, so that some might have localized in certain populations. But the link between genetic features and language is an unanswered conundrum. languages might have differentiated from a common proto-form because of isolation. Only detailed dichronic and synchronic studies in the actual situation can answer the question, credibly.