On 4/28/2018 2:43 AM, [email protected] wrote:
On Friday, April 27, 2018 at 7:31:26 PM UTC, John Clark wrote:
On Thu, Apr 26, 2018 at 6:41 PM, Bruce Kellett
<[email protected] <javascript:>> wrote:
/
>
many traces of that result remain -- even if your memory is
erased.
Deutsch on the wrong track, yet again!/
We won't know if Deutsch is wrong until the experiment is
actually performed as I expect it will be sometime in the next few
decades, but at least he made a stand and you did too, he
predicted interference bands will be seen and you predicted there
will be no such bands. So much for the idea that the MWI is not
testable.
John K Clark
*You haven't dealt with Bruce's objection; namely, you can't
completely erase a measurement result because some information is lost
in the measurement process; that is, equivalently, measurements are
strictly irreversible, not merely statistically irreversible
(reversible with exceedingly low probability). CMIIAW. AG *
The question is whether it is possible to determine welcher weg and then
quantum erase that (which we know is possible) AND retain knowledge
that the determination was made? I think the latter is meaningless. It
implies erasure of what would otherwise be a classical memory...so it's
equivalent to quantum erasing classical information.
Brent
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