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Cryonics and revival: what is preserved, and what remains unknown?
Preserving someone and successfully reviving that person are separate achievements.
Published 2026-10-30 · Updated 2026-10-30 · By Keep Existing
The idea and the evidence
Cryonics seeks to preserve a person after legal death in the hope of future revival. In its 2018 statement, the Society for Cryobiology described the prospect of reviving cryonically preserved people as speculative. Established uses of low temperatures in biology should not be treated as proof of human revival. [Source 1]
What a future method must answer
What relevant structure or information remains? What damage occurred before and during preservation? What would repair require? What evidence would show that the resulting person retains the capacities and identity they wanted to preserve? These are questions for evidence and patient preferences, not assumptions that money can settle.
Preservation needs its own arrangement
Keep Existing’s initial $100 participation does not purchase cryopreservation, transport, standby care or storage with a cryonics provider. Anyone considering those services needs to evaluate the actual provider and arrangements separately. An institution pursuing revival cannot treat an unpurchased preservation service as already in place.
The institutional task
Our intended role is to retain the accepted commitment and patient wishes, build resources, evaluate methods and arrange access if a suitable, sufficiently funded route becomes possible. Preservation may be relevant to some routes; we cannot promise that it will be sufficient or that revival will become possible.
Sources and scope
This is an institutional explainer, not a clinical guideline or a claim that the institution has demonstrated these methods. Source dates matter; our discussion of the mission is editorial interpretation.