I usually avoid this style of interview but gave this one a go and got a chuckle out of the idea of cryonics being available everywhere and covered by medicare:
“If you look at the brains of people who’ve historically been preserved by these cryonics organisations, you’ll see that their brains have shrivelled down by 50 per cent or so in size because it’s hard for these antifreeze chemicals to get into the brain, and then it dehydrates them in a way that’s not ideal.”
“Not ideal” is brain scientist for “they are probably never going to be successfully revived, but we can’t actually know because we don’t have the technology to try”.
And that is where the rub is now – Zeleznikow-Johnston says that with modern freezing techniques, a properly trained cryonic scientist with the necessary equipment can freeze a recently deceased person in such a way as will preserve them. In his ideal scenario, every hospital and hospice would be equipped with such a lab, and the procedure would be covered by Medicare. But what no one on Earth can currently do is thaw someone out. That doesn’t mean that in the future that technology won’t be possible, as things that were once thought to be magical are now commonplace.
archive.org (no paywall)