On 20 May 2014, at 04:35, Russell Standish wrote:
On Sun, May 18, 2014 at 01:12:20PM -0400, spudboy100 via Everything
List wrote:
Accordingto Deutsch, MWI is falsifiable, with some actions of a
quantum computer. These would be the heavy hitters of QC, and not
the lab toys we have today, but we'd potentially have access to
electrons in parallel cosmii.
Hmm - I'm not completely convinced by Deutsch's argument, interesting
though it is. It smells of being a rhetorical trick.
I am convinced of the MWI, however, for completely independent
reasons.
Bruno's principal argument for comp is that it predicts MWI. Yet
MWI itself is not falsifiable or testable.
COMP predicts FPI, actually. The MWI is a consequence of assuming a
"robust universe", namely one in which there is a UD that runs
forever.
If you stop at step 7. OK. But how could a machine distinguish if she
comes from the UD running for ever from the robust universe, or if she
comes from the UD running for ever in the arithmetical reality?
Moreover, the MWI entails a robust universe.
Yes. But not necessarily a primitive one. Here we should define
"universe", somehow (a quite non trivial task).
I don't think COMP is incompatible with nonrobust universes, however,
otherwise step 8 (the MGA) becomes completely unnecessary.
Yes, and with comp we have to take into account all computations, with
all their redundancies in the enumeration of all their executions.
That is why the "white rabbit problem" can be said, in that context,
to be unsolved, although I would argue that finding arithmetical
quantizations helps to understand how eventually the white rabbits
might be phased out of the normal (Gaussian) realities, in the
personal views of the surviving average universal machine.
Cheers,
Bruno
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Principal, High Performance Coders
Visiting Professor of Mathematics [email protected]
University of New South Wales http://www.hpcoders.com.au
Latest project: The Amoeba's Secret
(http://www.hpcoders.com.au/AmoebasSecret.html)
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