On 17 Nov 2014, at 13:21, spudboy100 via Everything List wrote:
Remember the 90's US scifi series, called Sliders? Like that.
Me too. At least the first episodes.
Otherwise, we're dealing with conjecture. Or the teapot circling
Jupiter, which we can do today, if we spent the money. Maybe Fermi's
Great Silence is because its easier to trade with different versions
of one's homeworld, then put the time and energy into interstellar
travel, or they achieve world-line travel and destroy themselves
with conflicts, interworld-world.
Unfortunately, the linearity of QM prevents any form of interactions
between the worlds. They can only interfere. But Weinberg (and Plaga
somehow, on this list) showed that by making QM slightly non linear,
then we can communicate and interact with the other worlds (but then
thermodynamic is wrong, relativity is wrong, well, pretty much nothing
in physics can survive that).
Bruno
-----Original Message-----
From: Bruno Marchal <[email protected]>
To: everything-list <[email protected]>
Sent: Mon, Nov 17, 2014 6:51 am
Subject: Re: Can we test for parallel worlds?
On 16 Nov 2014, at 22:54, spudboy100 via Everything List wrote:
If we can't interact with world 2, then its as if it doesn't exist.
Then it would not interfere. It is the whole point of the quantum:
the different terms of the waves can interfere, so we can't make
them disappear, even if we can't have branch-branch interaction: se
still have the branch-branch interferences.
Bruno
Just as if there was a super civilization in the Sombrero Galaxy,
but they can never interact with us, nor we, with them. It
resolves, from a human point of view to Never-Never Land. On the
other hand if we somehow can do FTL travel or communication, or
build Hyper-Tesla magnets and thus open up worldline commerce, then
its a mathematical hack used by physicists to amaze family and
friends!
-----Original Message-----
From: LizR <[email protected]>
To: everything-list <[email protected]>
Sent: Sun, Nov 16, 2014 4:46 pm
Subject: Re: Can we test for parallel worlds?
The MWI can also be viewed as not positing that any new worlds are
created, but that the multiverse is a continuum that can
differentiate between previously identical worlds, and can continue
to do this forever, that being a property of a continuum.
How does Wiseman (appropriate name!) distinguish their theory from
the MWI experimentally.
(PS Apologies I don't have time to read the paper at the moment.)
On 17 November 2014 08:32, 'Chris de Morsella' via Everything List <[email protected]
> wrote:
Interesting speculative physics… that makes claims that parallel
worlds may be testable.
“A new theory, proposed by Howard Wiseman, Director of the Centre
of Quantum Dynamics at Griffith University, is different. No new
universes are ever created. Instead many worlds have existed, side-
by-side, since the beginning of time. “
Regarding the interference patterns detected by the single electron
double slit experiment (first performed in 1974 at University of
Bologna)
According to Wiseman and his team this interaction between parallel
worlds leads to just the type of interference patterns observed –
implying electrons are not waves after all. They have supported
their theory by running computer simulations of the two-slit
experiment using up to 41 interacting worlds. “It certainly
captured the essential features of peaks and troughs in the right
places,” says Wiseman.
https://cosmosmagazine.com/physical-sciences/can-we-test-parallel-worlds
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