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.
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