One last thing on cryonics before I hit the hay. The reason that cryonics seems rather pointless to most people is because they do not understand the underlying reason that a person would want to be frozen. Cryonicists don't want to be reanimated as 75 year old men with aching joints and degenerating body. If that were the case cryonics would be very stupid indeed.
What cryonicists are hoping for is to be reanimated at a time in the future when science has progressed to the point where bodies can be reconstructed, all diseases eradicated and the aging process reversed.
Also, the problematic occurence of ice crystals in the freezing process has been more or less negated by the development of vitrification.
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Originally Posted by Vitrification
Freezing biological materials to the super-low temperature of liquid nitrogen (-320 deg. F.) for future reanimation has been used for decades. However, this process has involved the formation of ice crystals that are damaging to tissues. Recent breakthroughs in research have made possible the vitrification of human organs, in which tissues become a glass-like solid, without the formation of ice crystals. The result is indefinite preservation at near liquid nitrogen temperatures with greatly reduced tissue damage<hr size="1" /></blockquote><span class='postcolor'>
Best
Immortalist