Gregory's Server@grimalkina I often think about that (apocryphal? Trying to find a source but Google isn't being helpful) story about the mathematician excitedly telling his wife about a new discovery in knot theory, only to be told that the crochet community had known about it for quite a while
@bujold @grimalkina I know there's a crocheter (several crocheters at this point) who is also a mathematical who has some work in this area: https://www.scientificamerican.com/article/a-mathematical-yarn-how-to-stitch-a-hyperbolic-pseudosphere/