On 25 Nov 2012, at 01:22, Jason Resch wrote:
On Sat, Nov 24, 2012 at 5:15 PM, meekerdb <meeke...@verizon.net>
wrote:
On 11/24/2012 10:52 AM, John Clark wrote:
But consider what would happen before they open the boxes. Bruno
Marchal is exactly duplicated and one copy materializes in
Washington and the other in Moscow but both are inside identical
boxes. If the position of the two were then instantaneously
exchanged Bruno Marchal could not tell the difference and even
"you" could not tell the difference using any definition of "you"
that can be thought of. What's more even a third party, even the
very universe itself would not change one bit if you
instantaneously exchanged those 2 identical things.
But strictly speaking they cannot be identical. For example it is
statistically certain that they will be thinking different thoughts
as they revive from the transport. The no-cloning theorem already
ensures that they cannot be identical at the level of quantum state
and the very interactions with the environment that make them quasi-
classical will ensure they are not identical even at a much higher
level than the molecular. I'm not sure how this affects Bruno's
argument, but it is different from the 'duplication' in Everett's
MWI of QM.
We may be unable to prepare to quantum systems to be in such a
state, but if the universe is infinite in size, then we might expect
it to be statistically guaranteed that disparate systems converge to
identical quantum states.
As for how it might effect Bruno's thought experiment, we could
avoid the issue of non-clonability by duplicating "uploaded" minds
rather than ones supported by biological substrates.
Yes. If QM could be used through the cloning theorem, it can only mean
that comp is false. Once we are Turing emulable (which is still the
case with a quantum brain, despite the non cloning theorem), we know
that the UD will "prepare" the exact state infinitely often.
And then comp explains why the comp apparent "primitive matter" is non
clonable, as it is defined by an infinity of competing universal
numbers/histories.
Bruno
Jason
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