found thanks to a tweet by Steven Strogatz: https://twitter.com/stevenstrogatz/status/1478772886710194189?s=20 https://twitter.com/stevenstrogatz/status/1478772

found thanks to a tweet by Steven Strogatz: https://twitter.com/stevenstrogatz/status/1478772886710194189?s=20 https://twitter.com/stevenstrogatz/status/147877288671019418... > A companion paper for Kevin Buzzard’s (@XenaProject) upcoming talk at the International Congress of mathematicians