[beefman]

Also discussed here: https://news.ycombinator.com/item?id=45261566

Paper was posted twice:

https://news.ycombinator.com/item?id=45075566

https://news.ycombinator.com/item?id=45041978

[dang]

Thanks to you both! Macroexpanded:

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)