The Burau representation of the braid group is faithful for n = 4

wglb

Also https://www.yahoo.com/news/science/articles/99-old-mathemati... . Someone who has been at this problem for 60 years.

marysminefnuf

Birman still dropping bangers at 100 is quite something. We knew 3 strands is faithful and it was assumed 4 must be true but the ramifications of this in the face of quantum computing will be really fun going forward.

culi

Interestingly, David Graeber argued that mathematical thinking likely began through initiatives of women. Specifically tied to practices like weaving, beadwork, and tracking plant-based knowledge. https://theanarchistlibrary.org/library/david-graeber-and-da...