It is odd that Max would criticize CI for only perfusing the head in light of the fact that the great majority of Alcor patients are neuros (head-only). The head and the brain are the most important part. CI will perfuse the body with glycerol for CI Members who request it, but CI does not do this unless requested. Look at CI’s Perfusion Preference document, which all CI Members have the option of completing when making cryopreservation arrangements: http://cryonics.org/documents/Perfusion_Preference.html . When the majority of Alcor Members opt for neuro, why rag on CI about the fact that the majority of CI Members opt for no body perfusion (or opt by default)?
In any case, vitrification of the body is not possible either at Alcor or CI at present. CI’s vitrification solution can eliminate brain ice formation and even demonstrably results in hippocampal slice viability when cooled to −130Celsius and rewarmed, and is vastly less expensive than M22. I doubt that the extra expense of M22 is worth the difference. I do believe that it is important to make cryonics affordable, and I am pleased to be offering a lower cost alternative. Standby/Stabliization/Transport (SST) from Suspended Animation is an optional extra for CI Members, but SST is mandatory for Alcor Members. Only about a quarter of CI Members with cryopreservation arrangements have chosen to have SST from SA (I have chosen that option). I am proud that the comparisons page at CI does not involve a lot of breast-beating, but only contains objective information http://cryonics.org/comparisons.html .
Ben: I wasn’t actually criticizing CI for not perfusing the body other than the brain, I was simply pointing it out. CI members in general seem very insistent on the importance of cryopreserving their entire body. Given THAT, it seems important to note that their body will not be cryoprotected. However, thanks for pointing out that CI will do so if requested. How often is that request made?
Why do you say that vitrification of the body is not possible “either at Alcor or CI”? It is done at Alcor for whole body members.
I also meant to note that I am not sure how much the extra expense of M22 is worth in light of the fact that currently there is considerable cracking damage for patients being stored in liquid nitrogen.
It is odd that Max would criticize CI for only perfusing the head in light of the fact that the great majority of Alcor patients are neuros (head-only). The head and the brain are the most important part. CI will perfuse the body with glycerol for CI Members who request it, but CI does not do this unless requested. Look at CI’s Perfusion Preference document, which all CI Members have the option of completing when making cryopreservation arrangements: http://cryonics.org/documents/Perfusion_Preference.html . When the majority of Alcor Members opt for neuro, why rag on CI about the fact that the majority of CI Members opt for no body perfusion (or opt by default)?
In any case, vitrification of the body is not possible either at Alcor or CI at present. CI’s vitrification solution can eliminate brain ice formation and even demonstrably results in hippocampal slice viability when cooled to −130Celsius and rewarmed, and is vastly less expensive than M22. I doubt that the extra expense of M22 is worth the difference. I do believe that it is important to make cryonics affordable, and I am pleased to be offering a lower cost alternative. Standby/Stabliization/Transport (SST) from Suspended Animation is an optional extra for CI Members, but SST is mandatory for Alcor Members. Only about a quarter of CI Members with cryopreservation arrangements have chosen to have SST from SA (I have chosen that option). I am proud that the comparisons page at CI does not involve a lot of breast-beating, but only contains objective information http://cryonics.org/comparisons.html .
Ben: I wasn’t actually criticizing CI for not perfusing the body other than the brain, I was simply pointing it out. CI members in general seem very insistent on the importance of cryopreserving their entire body. Given THAT, it seems important to note that their body will not be cryoprotected. However, thanks for pointing out that CI will do so if requested. How often is that request made?
Why do you say that vitrification of the body is not possible “either at Alcor or CI”? It is done at Alcor for whole body members.
I also meant to note that I am not sure how much the extra expense of M22 is worth in light of the fact that currently there is considerable cracking damage for patients being stored in liquid nitrogen.