Re: What about MWI of QM as regards dead loved ones?

From: Marc Geddes (
Date: Fri Dec 10 2004 - 23:35:52 MST

--- Randall Randall <>
> On Dec 10, 2004, at 10:57 PM, Marc Geddes wrote:
> > Hope no one here is annoyed by this, but I have to
> ask
> > the question, since many here profess to believe
> in
> > the 'Many Worlds' interpretation of qauntum
> mechanics,
> > yet at the same time, several leading
> transhumanists
> > (Eli and Klein) were recently lamenting the death
> of
> > loved ones.
> >
> > Isn't it really the case that lost loved ones have
> > *not* in fact been obliterated, *if* in fact, MWI
> is
> > true? Their consciousness has simply concentrated
> in
> > the QM branches where they survived has it not?
> One answer: you're thinking of MWI on too high a
> level.
> There must be more universes which differ only in a
> single
> particle position than there are particles in the
> universe.
> Those who have died in our universe are dead in more
> universes, therefore, than that, even. There is no
> "nearby"
> universe where things are different on a human
> scale.

I'm not sure I follow you. Whether there are any
"nearby" universes where things are different on a
human scale surely depends on how far into the past
the QM fluctuation ultimately responsible for the
death of the loved one ocurred?

Example: The quantum suicide experiment. Suppose I
toss a 'quantum coin' and immediately commit suicide
if it's head. Then clearly, in 50% of time-tacks I'm
dead, 50% I live. But the 50% time-tracks where I'm
dead would diverge from the 50% live time tracks only
from that time on.

> Another answer: it doesn't make any difference that
> copies
> exist, if this copy dies. If you were copied down
> to the
> molecular level right now (certainly closer than any
> of the
> MW copies would be to those who died, by
> definition), it
> wouldn't be okay, in any sense, if either the
> original or
> the copy died. Consciousness isn't "spread across"
> all
> close copies of a person; it's a separate process
> (except
> for actual quantum interference) for each person
> involved.

Quantum decoherence is not total. The different 'time
tracks' (phrase is just an analogy anyway) are not
totally seperate from each other. I don't think you
can point to one particular 'time track' and say:
'that version of me is ME'.

You're right that it's not O.K that some copies have
died. But if the death was a low probability event
then in most time tracks it wouldn't actuallyhave
happened. Most of the copies would still be alive.

"Live Free or Die, Death is not the Worst of Evils."
                                                    - Gen. John Stark

"The Universe...or nothing!"

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