On 11/22/2019 1:33 PM, John Clark wrote:
On Fri, Nov 22, 2019 at 3:02 PM 'Brent Meeker' via
<everything-list@googlegroups.com
<mailto:everything-list@googlegroups.com>> wrote:
>>Why does the act of measurement seem to override the evolution
of Schrödinger's wave function, and what exactly does a
"measurement" even mean? Many Worlds is the only
interpretation that can give a credible answer to that question
/> The epistemological interpretation also gives a credible answer./
We now know thata measurementis possible without interacting with the
thing being measured:
Interaction-free measurement
<https://en.wikipedia.org/wiki/Interaction-free_measurement>
So we could place such a device at one slit in the 2 slit exparament
so we would know which slit the photons went throughand if we do there
will be no interference pattern, but if we turn the device off the
interference pattern willcome right back. If there is a credible
epistemological explanation for this very strange behavior I have
never heard it.
The person who knows the slit detector is on makes a different
prediction of the screen pattern.
Brent
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