Ayn Rand was not a crusader against theism, but a creator and defender of a rational philosophy for living on Earth. Every fundamental of her philosophy, however, has negative implications for theism and religious belief. This lecture examines the radical nature of her atheism, with special attention given to the idea of God, the arguments for God’s existence, and what Ayn Rand means in claiming “that nobody actually believes in God.” (Companion to Mayhew’s OCON 2014 lecture “Ayn Rand’s Sacred Atheism.”) Recorded live as part of The Objectivist Conference on August 30, 2021.