What science supports cryonics?
Cryonics is an attempt to preserve the physical basis of the human mind. Cryonics is not a belief that whole people can be frozen and revived with any near-term technology. The science that most directly supports cryonics is neural cryobiology. If a brain can be preserved well enough to retain the memory and personality within it, then restoring health to the whole person is viewed as a long-term engineering problem. This reliance on future technology for restoring health is often cited as evidence that cryonics is based on faith, not science. This is an incorrect argument since the necessary technologies are foreseeable, and even widely anticipated in other fields. They are no different than the expected advances in materials and control systems assumed by early theoretical studies of spaceflight. The key scientific question of cryonics is whether information essential to personhood can be preserved with current technology. This question is virtually never addressed by critics, despit
