On 12-05-2022 01:01, Bruce Kellett wrote:
On Thu, May 12, 2022 at 8:36 AM smitra <smi...@zonnet.nl> wrote:
On 11-05-2022 07:42, Brent Meeker wrote:
That's complete and audacious question begging. What you mean by
"real" is "modeled within the SE". There is NOTHING BUT collapse
experimentally; every result recorded in every notebook and every
tape
is evidence of a collapse.
There is effective collapse in experiments we do, but the
experiments
nevertheless demonstrate that the fundamental processes proceed
under
unitary time evolution.
All that the experiments demonstrate is that the wave function evolves
unitarily between state preparation and measurement. This is most
easily accounted for by assuming that the wave function is a purely
epistemic vehicle for the time evolution of probabilities. Since it is
purely epistemic, collapse is not a problem since it is not a physical
event. One does not have to go the whole way to QBism -- the wave
function can still be objective (inter-subjectively agreed).
That's possible but that means that QM is not a complete fundamental
theory of reality. Anything that explains these probabilities is then
possible, including the existence of a multiverse.
Saibal
Bruce
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