From: *Jason Resch* <[email protected] <mailto:[email protected]>>
On Sun, Aug 12, 2018 at 5:06 AM Bruno Marchal <[email protected]
<mailto:[email protected]>> wrote:
On 11 Aug 2018, at 02:29, Bruce Kellett
<[email protected] <mailto:[email protected]>> wrote:
They do not "belong to different branches" because they do not
exist, and have never existed. This notion seems to be important
to your idea, and I can assure you that you are wrong about this.
How could that be possible? You suppress the infinities of Alice
and Bob only because you know in advance what is the direction in
which Alice will make her measurement. What if she changes her mind?
Right.
I would like Bruce to consider the case Alice measures alternately x
and z spin axes of an electron 1000 times and interprets those
measurement results as binary digits following a decimal point to
define the real number to which she will set her measurement angle to
(before she measures her entangled particle).
Certainly in the no-collapse case there would be at least 2^1000
Alices who perform the measurement at each of the possible measurement
angles that can be defined by 1000 binary digits. What I wonder is
how many Alices Bruce would believe to exist in this scenario before
she measures her entangled particle.
How do 2^1000 copies of Alice make any difference? Each measures the
entangled particles only once. Besides, This is not what is done. I see
little point in making up alternative scenarios -- why not explain the
straightforward original scenario? Imaginary copies are beside the point.
If you cannot focus your attention on the original scenario, I see
little point in your trying to do physics.
Bruce
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