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All blue-eyed people have a single ancestor in common
- CarolineW 9y agoTen years ago on HN: https://news.ycombinator.com/item?id=111628 https://news.ycombinator.com/item?id=111628 Also, somewhat more recently: https://news.ycombinator.com/item?id=15194123 https://news.ycombinator.com/item?id=15194123 https://news.ycombinator.com/item?id=14309525 https://news.ycombinator.com/item?id=14309525 None have much discussion, but there were fewer people here ten years ago, so perhaps the five comments that are there are more valuable. Then again, maybe not.