In "The Biggest Ideas in the Universe," Sean M. Carroll guides readers toward grasping the very equation Einstein used to describe his theory of general relativity and shows why high school calculus is itself a centuries-old marvel as worthy of our gaze as the Mona Lisa. Join us online for a livestream all about the science topics featured in the SciFri Book Club pick for December 2025. Come with your queries and wonderings—we’ll be taking your questions in the livestream comments! – This is a #SciFriBookClub event, where attendees can hear from the author about topics related to our Book Club pick. Listeners talk with fellow attendees and ask questions to our guests via chat! Find out more about the SciFri Book Club: https://www.sciencefriday.com/sf-books/biggest-ideas-in-the-universe/ Listen to SciFri's interview with Sean: https://www.sciencefriday.com/segments/sean-carroll-physics-interview/ Read an excerpt from the book: https://www.sciencefriday.com/articles/sean-carroll-physics-book/