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> I would argue that cryopreservation is the belief in the increasing rate of scientific progress (which can measured and proven) The problem is that you aren'

> I would argue that cryopreservation is the belief in the increasing rate of scientific progress (which can measured and proven) The problem is that you aren't just depending on future improvements in revival technology, you're depending on the current state of today's preservation technology (at the point you die). And today's preservation technology doesn't have a lot of evidence suggesting that it can work to successfully preserve a kidney, much less a brain.

eudox 12y ago
Since you specifically mentioned kidneys: >In the summer of 2005, where he was a keynote speaker at the annual Society for Cryobiology meeting, Fahy announced that Twenty-First Century Medicine had successfully cryopreserved a rabbit kidney at -130°C by vitrification and transplanted it into a rabbit after rewarming, with subsequent long-term life support by the vitrified-rewarmed kidney as the sole kidney. This research breakthrough was later published in the peer-reviewed journal Organogenesis.[0] [0] https://en.wikipedia.org/wiki/Greg_Fahy https://en.wikipedia.org/wiki/Greg_Fahy [1] http://www.ncbi.nlm.nih.gov/pubmed/15094092 http://www.ncbi.nlm.nih.gov/pubmed/15094092
- cjbprime 12y ago
  That's exciting, thank you for the correction. (Happen to know whether they've done any larger organs?)
  - jacquesm 12y ago
    Entire animals can freeze: http://www.livescience.com/32175-can-frogs-survive-being-frozen.html http://www.livescience.com/32175-can-frogs-survive-being-fro...
- Pwnguinz 12y ago
  The abstract makes no mention of -130°C, but digging into the actual paper (can be read here: www.21cm.com/pdfs/cryopreservation_advances.pdf), it does mention: "Fig. 13. Confinement of ice formation to the pelvis of a rabbit kidney that was perfused with M22 at 22°C for 25min, bisected, and allowed to passively cool in air in a CryoStar freezer at about 130°C... The vast majority of the kidney appears to have vitrified and is indistinguishable from the appearance of the kidney prior to cooling." (Emphasis mine)
toomuchtodo 12y ago
> The problem is that you aren't just depending on future improvements in revival technology, you're depending on the current state of today's preservation technology (at the point you die). When the other option is straight ol' Death, I'm not losing much by playing the long game on science coming through at sophisticated cellular repair mechanisms/protocols. I'm definitely ahead of people getting buried or cremated.

eudox 12y ago

Since you specifically mentioned kidneys: >In the summer of 2005, where he was a keynote speaker at the annual Society for Cryobiology meeting, Fahy announced that Twenty-First Century Medicine had successfully cryopreserved a rabbit kidney at -130°C by vitrification and transplanted it into a rabbit after rewarming, with subsequent long-term life support by the vitrified-rewarmed kidney as the sole kidney. This research breakthrough was later published in the peer-reviewed journal Organogenesis.[0] [0] https://en.wikipedia.org/wiki/Greg_Fahy https://en.wikipedia.org/wiki/Greg_Fahy [1] http://www.ncbi.nlm.nih.gov/pubmed/15094092 http://www.ncbi.nlm.nih.gov/pubmed/15094092

cjbprime 12y ago
That's exciting, thank you for the correction. (Happen to know whether they've done any larger organs?)
- jacquesm 12y ago
  Entire animals can freeze: http://www.livescience.com/32175-can-frogs-survive-being-frozen.html http://www.livescience.com/32175-can-frogs-survive-being-fro...
Pwnguinz 12y ago
The abstract makes no mention of -130°C, but digging into the actual paper (can be read here: www.21cm.com/pdfs/cryopreservation_advances.pdf), it does mention: "Fig. 13. Confinement of ice formation to the pelvis of a rabbit kidney that was perfused with M22 at 22°C for 25min, bisected, and allowed to passively cool in air in a CryoStar freezer at about 130°C... The vast majority of the kidney appears to have vitrified and is indistinguishable from the appearance of the kidney prior to cooling." (Emphasis mine)

toomuchtodo 12y ago

> The problem is that you aren't just depending on future improvements in revival technology, you're depending on the current state of today's preservation technology (at the point you die). When the other option is straight ol' Death, I'm not losing much by playing the long game on science coming through at sophisticated cellular repair mechanisms/protocols. I'm definitely ahead of people getting buried or cremated.