[ExI] Advances in cryonics

[John Grigg]

I had not been aware of this 2016 breakthrough... I wonder if there was any
brainwave activity? The quote is taken from an excellent primer on the
subject of cryonics.

https://waitbutwhy.com/2016/03/cryonics.html

"And just in February of 2016, there was a cryonics breakthrough when for
the first time, scientists vitrified a rabbit’s brain and showed that once
rewarmed, it was in near-perfect condition
<https://www.rt.com/news/332074-cryonics-rabbit-brain-regenerated/>, “with
the cell membranes, synapses, and intracellular structures intact … [It
was] the first time a cryopreservation was provably able to protect
everything associated with learning and memory.”

https://www.brainpreservation.org/large-mammal-announcement/

"Using a combination of ultrafast glutaraldehyde fixation and very low
temperature storage, researchers have demonstrated for the first-time ever
a way to preserve a brain’s connectome (the 150 trillion synaptic
connections presumed to encode all of a person’s knowledge) for
centuries-long storage in a large mammal. This laboratory demonstration
clears the way to develop Aldehyde-Stabilized Cryopreservation into a ‘last
resort’ medical option, one that would prevent the destruction of the
patient’s unique connectome, offering at least some hope for future revival
via mind uploading. You can view images and videos demonstrating the
quality of the preservation method for yourself at the evaluation page
<https://www.brainpreservation.org/aldehyde-stabilized-cryopreserved-pig-brain-evaluation-images/>."


ASC in time may become a rival/alternative to vitrification. But due to its
effects on our cells, it is supposedly good at preserving information, but
not at maintaining viability for a future biological rejuvenation. And so
it would be the ideal means of trying to achieve a high quality brain scan
for a clone. As for myself, I view biological rejuvenation as an
imperative, and a brain scan downloaded into a clone as a copy of me, but
not the all important original.

I realize there are 2-3 potential threads contained within my post! Lol

John
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