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We have long tried to find ways to extend our life expectancy and avoid the inevitable specter of death, but some of these methods really stand out as truly strange. One persistent field of prolonging life deals with not keeping someone alive for longer, but rather putting them in a suspended state of no decay, as if an insect in amber, so that they may be theoretically brought back to life in the far future when medical technology catches up. The field is called cryonics, and it basically involves the flash freezing of a corpse or even just the head of a corpse, using materials such as liquid nitrogen, and then keeping the body preserved at extremely low temperatures below −130 °C, usually at −196 °C, while using chemical cryoprotectants to prevent ice formation during the procedure. The idea is that when the body or brain matter is frozen in this way, usually within minutes to an hour after the death of a patient, and if the brain structure remains intact, the information ....