On 24 Feb 2015, at 22:52, Bruce Kellett wrote:

LizR wrote:
On 24 February 2015 at 14:23, meekerdb <[email protected] <mailto:[email protected] >> wrote: And I don't see anything incoherent about true randomness. We seem
   to have done well with it for a century.  If you can accept
   randomness due to ignorance which can never be informed, why not
   inherent randomness.
It is of course possible that the universe works on "oracles" like this, this is just my personal bias towards explanations that don't require infinite amounts of "in-principle unknowable" data to be injected into physics. But I admit I could be wrong to have that bias.

You must have difficulty with quantum mechanics, then. QM is built on a lot of "in-principle unknowable" data. Hidden variable theories of QM do not really work, so that in radioactive decay, for instance, the time of any particular decay, and whatever it might be that caused that nucleus to decay now rather than at some other time, is "in-principle unknowable".

MWI simply formalizes the fact that such data are "in-principle unknowable".


Well, usually we say that the SWE formalizes that fact, and that the MWI interpret this in term of many world. But I am OK with your statement, as SWE implies formally the MWI, if we define world by a structure of events close for interaction. Then, using the FPI, we have a dterlministic and local account of why the data appears for the observer first person (plural) point of view as unknowable, indeterminist and non local.

Bruno



Bruce

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