I just finished listening to the latest episode of The Joy of Why, Is There Math Beyond the Equals Sign?, in which Dr. Eugenia Cheng discusses category theory. It’s a fun episode. Dr. Cheng’s enthusiasm for her field is infectious. Category theory is a branch of mathematics I’d never heard of before this evening, and it is apparently a very abstract field. So you might be surprised by how much of the conversation centered on sociology. It’s definitely worth your time.