The document discusses the topic of cryonics, which aims to preserve humans in cryogenic temperatures with the goal of future revival using more advanced technologies. It provides background on Robert Ettinger who created the Cryonics Institute and its mission statement. Research cited shows around 250 people in the US and 1500 more worldwide have made arrangements for cryopreservation upon death. The document clarifies cryonics vitrifies the body rather than freezing it and provides an example of a rabbit being revived after its vitrified kidney was replaced.