"Every single human on this planet is as distinct as a snowflake; a combination of traits and genes and microbes that, as far as we can tell, is not replicated exactly in any other single human." Hmmm....twins?

Even "identical" twins' mitochondrial DNA tend to diverge over time, according to recent research.

Interesting. Over what time? Genuine question.

Discussion (34 points, 2 hours ago, 16 comments) https://news.ycombinator.com/item?id=44262799