On 7/26/2019 12:31 AM, Bruno Marchal wrote:
You're shifting the argument. One may very well say "yes" to the
doctor believing that one's essential character and memories will be
preserved, while also believing that many details will be different.
If some details are different (others than seeing different cities
after opening the reconstitution box, of course), it means that the
functional digital substitution has not been made at the right level.
So the thought experiment relies on the reconstitution being exact in
every detail?
So which is it? Is it essential to your argument that the
duplication be exact?...exact at what level?
At the substitution level, or below.
But the question is whether such a "substitution level" exists, and
whether it exists depends on how exact the substitute must be. Quantum
mechanics places a limit on this and does not permit an exact
substitute. So it comes down to a question of how much difference is
tolerable. That will depend on other external factors.
Brent
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