On 14 Apr 2016, at 18:58, John Clark wrote:
On Thu, Apr 14, 2016 Bruno Marchal <[email protected]> wrote:
> determinisme and locality entails from the (sharable first
person plural)
I don't know what "sharable first person plural" means.
Instead of duplication or superposition of a person, we consider
duplication of a population of person. Think of you and me going in
the Helsinki/Washington-Moscow device. Or think about quantum
mechanics, where entanglement = sharing a superposition.
In that case the indeterminacy is sharable (among the people from the
population). They can bet on the results and they can define the
probabilities with the Deutsch book method, that is, without the
definition based on frequency. Some people uses this to avoid
probability theory and use some decision theoretic tools instead. It
works both fro the classical computationalist duplication case and
quantum self-superposition.
If I'm falling into a Black Hole and you're far away observing me
through a telescope you will NEVER see me go through the event
horizon, but from my viewpoint in a finite amount of time (and not
even a very long time) I will go through the event horizon without
incident. Both viewpoints are equally valid but they can not be
shared; you can see one or the other but not both.
Good illustration which illustrates that you got the point.
> point of view of each observer in the multiverse things looks
indeterminate and non local,
Yes.
> but nowhere is there any action at a distance, nor any
indeterminacy or event without "cause".
That would only be true from the viewpoint of somebody standing
outside of the multiverse looking back in at it, and that is a
viewpoint that can not exist because there is no place outside of
the multiverse and thus no place to stand. So you're talking about
what it would be like if impossible things could happen
, and that can be entertaining (I like the Harry Potter books)
but it's not science.
You don't need to stand outside the universe when you do theoretical
physics. You can define the universe by some solution of some equation
(like in Einstein's GR, or Dewitt-Wheeler equation, etc.).
Bruno
John K Clark
--
You received this message because you are subscribed to the Google
Groups "Everything List" group.
To unsubscribe from this group and stop receiving emails from it,
send an email to [email protected].
To post to this group, send email to [email protected].
Visit this group at https://groups.google.com/group/everything-list.
For more options, visit https://groups.google.com/d/optout.
http://iridia.ulb.ac.be/~marchal/
--
You received this message because you are subscribed to the Google Groups
"Everything List" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at https://groups.google.com/group/everything-list.
For more options, visit https://groups.google.com/d/optout.
