Extreme life extension: investing in cryonics for the long, long term.

This article explores American conceptualizations of finance, the future, the limits of biological time, and the possibilities of biotechnoscience through an investigation of the social world of cryonics-the freezing of the dead with the hope of future revival. I describe some of the cosmologies of life, death, time, and the management of the future that circulate within cryonics communities, and I draw out relationships between cryonics practices and discourses and more common forms of personal future management prevalent within American neoliberal capitalism. I also illustrate similarities and differences between cryonics and more mainstream biomedical technologies. In doing so, I argue that cryonics is one American manifestation of anxieties about aging, time, and the future. I investigate the impact of biotechnologies on self-making and biosociality, and argue that crafting of selves can be deeply entwined with practices of investment or hope in the future of biomedicine and technology.