Subject: Plus, at 67 removes...
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Posted on: 2021-08-07 20:40:14 UTC

I'm pretty sure the amount of DNA Aragorn shares with Arwen would be roughly the same amount he would share with any random person. Apparently the average genetic distance between American spouses is seventh cousins, and there is no meaningful genetic similarity at that remove, either.

Marrying cousins wasn't always taboo, either, and it's not as scary as you might think as a once-off thing. I found an interesting article about it here: https://www.popsci.com/marrying-cousins-genetics/ That's where I got the above statistic.

And I reckon it still isn't (as) taboo among royalty and other less-open societies. The smaller the pool of acceptable spouses, the more genetic similarity between spouses you're going to get, and you either gotta accept that or be more open-minded about who you can marry. *shrug*

~Neshomeh

P.S. Genetic diversity or lack thereof hardly matters at all if you don't plan to have offspring, anyway. The biggest risk is, like, getting the flu at the same time.

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