Quentin Anciaux wrote:
> Hi,
> Le Samedi 25 Mars 2006 00:27, Brent Meeker a écrit :
>>Quentin Anciaux wrote:
>>>Le Vendredi 24 Mars 2006 20:38, 1Z a écrit :
>>>>Quentin Anciaux wrote:
>>>>>A quick point still :
>>>>>You seem to have a problem with mathematical monism and reject it due to
>>>>>HP world... but HP world is not a consequence of mathematical monism,
>>>>>but a consequence of many world theories which can themself presuppose
>>>>>mathematical monism or not. Everett many world theory is not
>>>>>mathematical monism, still it support HP world.
>>>>Physically MW theories are inherently more constrained than
>>>>MW theories. You are not going to get water flowing uphill in a
>>>>physical MW
>>>>theory, because it contradicts the consevation of energy.
>>>Quantum theory predict that there is a very tiny chance that a broken cup
>>>of coffee restructured itself... yet in everett mw theory as all choices
>>>are made, there exists branches where this happen all the time. Yet as
>>>I'll quote you "it is not observed"... but that does not mean anything
>>>against everett mw.
>>It doesn't mean much against Everett because Everett predicts extremely
>>small probabilities for such events 
> yes that's what I explain (I think), but even very very small probabilities 
> lead in many worlds to the existence of a very very tiny number of branches 
> where these weird events happen *all the time*.
>>and so effectively predicts they will 
>>not be seen. Whether is counts against everything-exists theories depends 
>>on the probability measure over such theories - a frequent topic of
>>discussion on this list.
>>Brent Meeker
> I believe in relative measure and I think this is a key to resolve HP 
> universes "problem" (I quote problem because I don't see why it is one after 
> all).

What's "relative measure"?  Do you mean the Born Rule.  To retain it as an 
vitiates the explanatory power of MW.  But all attempts to derive it seem to 
have fallen into cicularity.

Brent Meeker

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