Underneath it all, this is a manifestation of an important split in the cryonics community. One group is (I think overly) critical of present vitrification app

Underneath it all, this is a manifestation of an important split in the cryonics community. One group is (I think overly) critical of present vitrification approaches and the planned future of those approaches. They believe that these approaches are broken, and nothing of value is preserved. I think this is just as ridiculous as saying there is no room for improvement - it is clearly the case that, e.g. nematodes vitrified using the present technologies can be restored and show preserved memory. That group has a strong overlap with pattern identity theorists, who are quite comfortable with a copy of them living in the future, and throwing away the original brain. So the intersection of these two groups is motivated to work on technologies such as aldehyde-stablized cryopreservation (vitrifixation) that are incompatible with the future goal of thawing, restoration, and repair, as they are not reversible short of far distant molecular nanotechnology. Their aim is to produce the best possible record of data of the mind with the intent of reading into a machine environment in the future, then discarding it. To my eyes this is a terrible, terrible, mistaken view on identity, and one that will cause a great deal of existential harm when it is extended from theory to action. The rest of the cryonics community is interested in a technology path that leads to reversible vitrification in the near future, and some kind of union with the tissue engineering / organ engineering community. They want the flesh restored and repaired, and the end goal of cryopreservation is some form of advanced cell/bio/nanotechnology that can achieve that end. This is why Alcor, etc, is not adopting vitrifixation. So on the one hand, great to see progress, and vitrifixation is an excellent advance in tissue preservation in the general sense. It will be of use in many areas of research. On the other hand, pattern identity theory seems to have many of the aspects of religion. A copy of you is clearly not you, and no amount of handwaving is going to make that the case.