Just for reference re that "Siggraph 2019 presentation": https://en.wikipedia.org/wiki/Geometric_algebra https://en.wikipedia.org/wiki/Geometric_algebra "The

Just for reference re that "Siggraph 2019 presentation": https://en.wikipedia.org/wiki/Geometric_algebra https://en.wikipedia.org/wiki/Geometric_algebra "The geometric product was first briefly mentioned by Hermann Grassmann" (1809 – 1877) "In 1878, William Kingdon Clifford greatly expanded on Grassmann's work to form what are now usually called Clifford algebras in his honor (although Clifford himself chose to call them "geometric algebras"). For several decades, geometric algebras went somewhat ignored, greatly eclipsed by the vector calculus." "The term "geometric algebra" was repopularized in the 1960s by Hestenes." The background image on: https://bivector.net/ https://bivector.net/ is William Kingdon Clifford.