Hi Nick,
This is a bit unclear. How is U and D distinguished from the (absence
of) first person view?
Given that very minimal change in the brain seems to be able to send
someone in the "amnesic arithmetical heaven", as illustrated by some
drugs, I am not sure we should worry about QM immortality, which
arises itself from the comp immortality. It illustrates also that
backtracking might be more probable. Technically this is difficult to
compute, and if QM is true yet comp false, I would worry more on this.
I do appreciate that people are aware that notions of "after-life"
makes sense, and are hard to avoid with current theories. Yet, without
handling the whole theology, and not just its physical aspects, we can
come easily to weird conclusions. With comp there are too much open
problems to decide on this in any quick way. Of course we can
speculate. It is a fascinating subject.
Bruno
On 08 Jun 2012, at 01:11, Nick Prince wrote:
I’ve just read the following paper :
http://istvanaranyosi.net/resources/Should%20we%20fear%20qt
%20final.pdf
which argues that it is possible to avoid the descent into decrepitude
that seems to follow from the quantum theory of immortality (QTI).
Aranyosi argues that this is plausible on the grounds that any death
branch would be preceded by an unconsciousness branch. Under normal
QTI circumstances, if we were Schrödinger’s cat we would come across
the (3p) node (L= Lives, D= Dies):
DDDDDD
LLLLLLL
LLLLLLL
To see the cat’s (1p), view we discard the DDDD branch, but we will
more than likely be harmed at each branch and therefore become more
decrepit.
If I understand it correctly, and keeping things simple, Aranyosi
seems to be arguing that, by assuming that unconsciousness precedes a
death branch, then for 3p we have two types of branching: (where
C=Conscious, U = unconscious). First a triple branch:
D DDDX
UUUUU..UUUUUUUUUU
C CCCCCCC
And also a double branch:
CCCCCCCC
CCCCC
UUUUUUU
Any combinations of these can be put together by matching U’s or C’s
to make a tree.
A 1p subjective experience comes by discarding all branches that
have death D preceded by U. Hence the first type of diagram would
never be experienced and the cat sees only the C to C/U branching.
You can join two of the second type of diagram – a CUC route simply
being sleep or fainting or anaesthetic etc.
I would argue though that U can still occur if one suffers significant
physical damage and hence decrepitude still follows?
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