Can any of the upvoters briefly explain why it's worthy of upvoting?
I found it an interesting deep dive into something completely esoteric that I have no prior context on. Reading original work by a domain expert scratches the same itch for me as learning about a cool hack. Although you'd think STEM subjects would be a better fit for HN, in practice you can't read e.g. an immunology paper without being a halfway decent biologist, whereas this was accessible without sacrificing any depth. Overall, I think broad intellectual curiosity is an HN-adjacent trait, and this post appeals to that.