Back in 2013, John Conway was doing some paintings and Darren Naish was drawing lots of animals for a book. I chipped in to help with their artwork and some back and forth ensued. All this happened on Twitter, and I wrote it up in an SV-POW! post with lots of embedded tweets. But with the progressing enshittification of Twitter (I refuse to call it X), that post is rendering less and less well, and at some point will probably fail completely.