What is the minimum required technology to reanimate someone who has been cryogenically frozen?
As part of the story I am writing, an individual has been frozen with relatively crude cryogenic technology, then preserved as well as possible. Given the constraints of biology, what would waking them up entail in terms of real/current (or hypothetical/future) technology in order to be successful?
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Possibilities:
There are many possible developments in tech which would allow this, (OK , first, going along with the question's assertion that the freezing process has already occurred - thus excluding some modification akin to the adaptation in some frogs re. antifreeze in their cells):
Scanning tech close to the atomic-level - coupled with the ability to reproduce matter.
Basically, as soon as we develop teleportation tech, (and a high level of software editing to repair freeze-related damage) then we can focus those beams on the frozen individual, upload their physiological data (eg. all their brain's grey and white-matter data - all their life's experience, mental associations), plus their body (maybe with a few repairs/improvements). Then simply re-materialize them in their prime.
Time travel, coupled with mind-reading tech and cloning.
After death, their frozen remains can be discarded (they were only there for the family's viewing anyhow, PR style).
A person/bot is sent back to the most convenient time before death to retrieve the memories. For dementia patients, this could be pre-diagnosis, for murder suspects, just before the act (to ascertain mental state) or just after to get an exact view how it went. Memory editing by the state/third parties could be an issue in this society, I'd hate to be hacked - again. Anyway, the cloning wouuld produce a new body, an imprint of the mind would be uploaded to the blank-slate.
Nano, coupled with advanced AI.
Molecular level issues with cell integrity could perhaps be sorted out by the bots, reversal of blood clotting, cell membrane rupture, proteins being shredded by ice crystals. These minor issues could be repaired on an atom-by-atom basis (see "The World's Smallest Movie"). They could be repaired if the process is supervised by a splendidly intelligent AI, in communication with all the bots-in-the-bod, supervising the various stages of repair and reanimation.
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