X-Message-Number: 18013
Date: Sat, 24 Nov 2001 07:27:19 -0500
From: Thomas Donaldson <>
Subject: CryoNet #18007 - #18012

To Mike Perry:

No, what you say does not obviously deal with the problem of duplicates.

In the first case, we are really discussing whether we must replace
part or all of our patients' brains to reawaken them. Once we assume
first that we work by known physical-chemical means, and second that
we can indeed replace these parts, then the degree to which we must
replace parts becomes a minor issue. Where is the duplication here?
A restored patient is no more a duplicate than I am a duplicate of
myself 1 year ago ... much less than that, actually.

In the second case you discuss, you aren't really discussing bringing
someone back but creating another (or many) versions of an existing
person. I'd tend to say that each version becomes different, given
that they're in different places (and if all those places are 
identical, then why bother?). There is an issue of identity here.
However whether or not we want to do this after our revival remains
a separate question, and it has no bearing on our actual revival.

I'm not saying that these questions cannot be interesting. I'm just saying
that they seem to have virtually no bearing on cryonics itself.

		Best wishes and long long life for all,

			Thomas Donaldson

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