Totally unrelated, but how does this post rank so low on the HN front page? 84 points in 2 hours is huge ... but its at number 22 right now. Has something happe

Totally unrelated, but how does this post rank so low on the HN front page? 84 points in 2 hours is huge ... but its at number 22 right now. Has something happened to the HN rank algorithm?