The proceedings of the Bridges Math Art conference were published online a couple of days ago: https://archive.bridgesmathart.org/2026/

This is always a highlight of the year for me; but especially so this year, because they contain a paper that I co-wrote!

So I thought I would say a bit about it here, and over the next few days as I find time to add bits & pieces.

The title, and the topic of the paper, is Caltrops: https://archive.bridgesmathart.org/2026/bridges2026-165.html

But what, I hear you cry, is a caltrop‽

(1/?)