This episode dives into the strange and unsettling idea of quantum immortality, using a vivid quantum “Russian roulette” thought experiment as a gateway into the many‑worlds interpretation, probability, and the nature of consciousness. Anna and Professor Halloway debate whether your subjective experience could ever genuinely end, how the Born rule and measures of existence shape what “survival” means, and whether a fragmented, branch‑hopping self still counts as a person at all. Along the way, they explore terrifying and “comforting” corollaries involving endless deterioration, unconsciousness, and cryonics as a potential strategy for steering your future self toward better branches. The result is a fast‑moving, philosophical and scientific conversation that challenges what listeners think they know about death, identity, and reality itself.