X-Message-Number: 24160
From: "John de Rivaz" <>
References: <>
Subject: Re: Ban News -- not really
Date: Fri, 28 May 2004 16:26:27 +0100

This is on the basis that thawing is by present day technology. Certainly
the 30% success rate of sperms isn't encouraging, and the fact that viruses,
prions, bacteria and nano-bacteria (collectively "germs") are also
reanimated isn't encouraging either. But no one can revive a whole person
from liquid nitrogen cryopreservation by present day technology.

But a future technology capable of reviving a whole person, rather than a
collection of a few sperm, is less likely to have these problems. It should
also be able to separate out the unwanted stow-aways and exterminate them.

-- 
Sincerely, John de Rivaz:  http://John.deRivaz.com for websites including
Cryonics Europe, Longevity Report, The Venturists, Porthtowan, Alec Harley
Reeves - inventor, Arthur Bowker - potter, de Rivaz genealogy,  Nomad .. and
more

>
> "Once sperm is frozen in liquid nitrogen, its biological activity ceases,
> meaning it doesn't deteriorate. In fact, the main risk to sperm comes when
> it's thawed, not while it's frozen. About 50 percent to 70 percent of
sperm
> dies during thawing, but that usually leaves enough behind to allow
> fertilization, Thornhill said.
<del>
> There's a problem, however. When the sperm is brought out of suspended
> animation, the germs inside it come back to life, too.

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