Hi Stephen,
On 09 Nov 2014, at 14:30, Stephen Paul King wrote:
Hi Alberto,
you wrote: "There must not be a general arrow of time since time
in general relativity is local not only in his value but also its
direction AFAIK"
Exactly! Time can be shown to be local for QM systems as well.
So, where does the illusion of a global dimensional time come from?
Barbour is right. It doesn't exist. But the illusion persists...
But the MW explains that illusion in term of personal records in the
observing sub-system. Like in the WM-duplication, everything is 100%
3p deterministic, but almost all first person records asserts the
contrary, for obvious reason. So the QM theory (without collapse)
explains why the illusion persists. In the pure computationalist
context, we are less far, and still have to justify the QM wave
itself, but we got results in that direction.
Bruno
On Sun, Nov 9, 2014 at 7:03 AM, Alberto G. Corona
<agocor...@gmail.com> wrote:
Hi Stephen:
There must not be a general arrow of time since time in general
relativity is local not only in his value but also its direction AFAIK
2014-11-09 2:25 GMT+01:00 Stephen Paul King <stephe...@charter.net>:
Hi Alberto,
Is there really a global thermodynamic arrow of time? We can only
infer its existence based on theoretical organizations of data that
we collect. AFAIK, all "arrows" in actual physical dynamics are local.
On Friday, November 7, 2014 5:26:40 PM UTC-5, Alberto G.Corona wrote:
if time is the thermodynamic arrow then then is meaningless the
notion of reversal of termodinamic arrow.
In which time the termodinamic arrow is reversed? Does it mean that
the time goes forward while termodinamic arrow goes backward? that
contradict the first assumption!!!
2014-10-15 2:14 GMT+02:00 Stephen Paul King
<step...@provensecure.com>:
Hi,
I re-read S. Mitra's paper again and it made more sense than
before if I assumed that the reversible measurement idea is to be
taken as a local reversal to the "direction of entropy flow" in an
area and not the entire universe.
The trouble is this notion of locality. Are there any favorite
definitions of "locality" out there? AFAIK, it does not have a fixed
size in space, but may have a fixed size in "space-time" as location
information expands at the speed of light if we ignore the effects
of local structure that would modulate decoherence. This
"decoherence" thing, IMHO, needs to be looked at carefully.
In deference to Bruno, I should ask a question relevant to the
ongoing discussions. Is a finite universe with locally reversible
time consistent as a 1p world?
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