And I thought that the paper http://arxiv.org/abs/2508.18475 had also been discussed but can’t find it so could be wrong
Paper was posted twice:
https://news.ycombinator.com/item?id=45075566
https://news.ycombinator.com/item?id=45041978
Rupert's snub cube and other Math Holes - https://news.ycombinator.com/item?id=45261566 - Sept 2025 (10 comments)
Rupert's Property - https://news.ycombinator.com/item?id=45057561 - Aug 2025 (23 comments)
And I thought that the paper http://arxiv.org/abs/2508.18475 had also been discussed but can’t find it so could be wrong