GoKawiilPhysicist John Baez ties three particle generations to E7 exceptional algebra
Mathematical physicist John Baez has published a new paper arguing that the puzzling existence of exactly three generations of quarks and leptons may emerge naturally from the exceptional Lie group E7, building on earlier work linking the Standard Model's gauge group to the exceptional Jordan algebra. The paper is his third in a series exploring whether unusual mathematical structures built from the octonions can explain quirky features of particle physics rather than treating them as accidental.