The most important issue in cryonics was presented by the connectome preservation guys... Seung and Hayworth... who made LN2 cryonics and even vitrification obsolete. Ben Best and all of cryonics keep recycling the arguments of the 1980s and 1990s.

https://m.youtube.com/watch?v=jV3foeoB3uQ

Here is a little bit on Seung and Hayworth
Cryonics
33rdsquare.blogspot.com/2013/10/connectomics-and...
Seung and Hayworth use the technology of chemical brain preservation to explore connectomes. Unlike the freezing method of cyronics used at Alcor, chemical brain preservation essentially kills the cells it preserves. Shortly before or moments after death, a scientists will start the process of emergency glutaraldehyde perfusion (EGP) for ...

MY own survival plan is now oriented toward purifying my soul which is in the quantum realm and currently separated from my body but being broadcast to my brain... as outlined in Deep Reality. This is the case for all human minds and constitutes a "real" "Forever for all" the title of Mike Perry's book which did not really point to forever for all. My adoption of Doug Metzke's Deep Reality of quantum aether mind realm is the real forever for all. Cryonics, for me, has become nothing but a repetition of the obsolete 1980's approach... say late 20th C. approach to physical immortality... .and since the cryopreservation of Don Laughlin, nothing but a front for money transfers out of the economy into permanent trusts housed in North Dakota, which is where Don's money now resides. Most of the wealth cryonicists, it appears to me, are more insterested in perpetual preservation of their wealth-- not their minds. In this sense, they're literally "out of their minds". Their minds are, like mine, external to their body, in quantum space.

I'm currently of the opinon that long hair acts as a pre-antenna to the antenna of the brain which is what the connectome is. The DNA of creatures including man is also an antenna array that receives signals from the quantum realm to create the morphic field creating a species form, originally designed in the quantum supermind of Quantum God.

The potential for human mind had to have pre-existed any occurance of human mind so that would require a secondary background universe. ... which we've discovered, called the Quantum Universe... which operates on a scale a trillion times tininer than nanotech. Cryonicists are banking on nanotech to save them but it won't work. The connectome antenna array is destroyed by cryonics including vitrification. The best way to preserve the antenna brain of connectomes is Seung/Hayworths' gluteronics.