MWI is not realistic in the sense you need to define it here. I.e. you
need to assume that whether or not a photon moves through a polarizer
depends on its hidden variable and the setting of the polarizer it is
moving through, not the setting of the other polarizer or other hidden
variables of particles elsewhere.
Saibal
On 13-08-2015 18:51, John Clark wrote:
On Thu, Aug 13, 2015 at 2:51 AM, Pierz <pier...@gmail.com> wrote:
>> We know from experiment that Bell's inequality is
violated so we know for sure that in the Many Worlds
Interpretation, just like every other quantum interpretation, at
least one of the following must be wrong:
1) Realism (things exist in a definite state even if they are not
measured)
2) Determinism
3) Locality
The Many Worlds Interpretation is realistic so if it's true then
nothing determines if the universe splits or not (it's random)
> It's not random!
MWI is realistic and if it's deterministic too then we know from
the violation of Bell's inequality that for it to be true it must be
non-local; and to my mind that is far more disturbing than if some
things were just random.
> The whole point of MWI is that it all happens, and the
randomness arises from which branch "you" end up in (ah, the
pronouns again!).
No, Everett didn't develop the MWI because he was desperate to find
a deterministic theory, he did it to explain quantum weirdness, and
randomness is one of the least weird parts of it; in fact I don't
think that's weird at all, but non-local is weird.
You'll never find something if you don't look for it so for practical
reasons it is often useful to have "every event has a cause" as your
default position, and in many cases events do have causes,
but there is no logical reason to think all of them do.
John K Clark
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