Date/Time: 2 February 2024, 4:30pm ET Location: Zoom Speaker: John Baez, University of California Riverside Title: Two of My Favorite Numbers: 8 and 24 Abstract: The numbers 8 and 24 play special roles in mathematics. The number 8 is special because of Bott periodicity, the octonions and the E8 lattice, while 24 is special for many reasons, including the binary tetrahedral group, the Dedekind eta function, and the third stable homotopy group of spheres. The number 8 does for superstring theory what the number 24 does for bosonic string theory. In this talk, which is intended to be entertaining, I will overview these matters and also some intriguing connections between the numbers 8 and 24.