A given piece of data can represent an infinite number of different
things depending on the software that interprets it. What may be an
mp3 file to one program may look like snow to an image editor.
Therefore a bit-string only has meaning in the context of the program
operating upon it, without a corresponding program (i.e. physical
laws) associated with a state (state of the universe or observer's
mind) there is no consciousness. This means that a simple program
counting to infinity, although iterating over every possible bit-
string would not create universes or self-aware-substructures as the
software is too simplistic and the "meaning" of any one state is just
a counter's value.
Instead something like the Universal Dovetailer is required, in which
the states created have different meanings depending on program to
which it belongs. In some programs, states may be interrelated to
produce illusions of time to observers, observers exist in interactive
environments, etc. In other words an OM requires more than the data
describing the mind, it requires a specification of a state machine
and the state which corresponds to the OM.
Jason
I'm doubtful that you could find a string of any significant length which
both sounds like sensible music and looks like a realistic picture. I'm
even more doubtful that the enormous length of the data that would
represent the brain activity associated with an observer-moment could
be meaningfully interpreted as anything else.
My guess is that sufficiently long, meaningful data strings have
their meaning implicitly within themselves, because there is no
reasonable-length program that can interpret them as anything else.
Hal Finney
Jason writes:
> A given piece of data can represent an infinite number of different
> things depending on the software that interprets it. What may be an
> mp3 file to one program may look like snow to an image editor.
I'm doubtful that you could find a string of any significant length which
both sounds like sensible music and looks like a realistic picture.
I'm
even more doubtful that the enormous length of the data that would
represent the brain activity associated with an observer-moment could
be meaningfully interpreted as anything else.
My guess is that sufficiently long, meaningful data strings have
their meaning implicitly within themselves, because there is no
reasonable-length program that can interpret them as anything else.
Hal Finney
This is patently false, as otherwise unbreakable ciphers would not
exist. The "anything else", of course is junk.
However, it does seem to be true that not all strings are capable of
being interpreted as an observer moment of a conscious observer. This
is kind of a flip side of what you're saying. I'm not aware of this
being proven, though, or even the similar (and weaker under COMP)
statement that not all strings are capable of being interpreted as
self-describing Turing machine. Note that this feeds in Chalmers
conscious rocks argument.
Cheers
--
----------------------------------------------------------------------------
A/Prof Russell Standish Phone 0425 253119 (mobile)
Mathematics
UNSW SYDNEY 2052 hpc...@hpcoders.com.au
Australia http://www.hpcoders.com.au
----------------------------------------------------------------------------
The first problem is to understand why and how observers interpret
data in a meaningful way despite of the fact that the data has no
unique meaning within itself.
On 26 Sep., 21:09, Jason <jasonre...@gmail.com> wrote:
> A given piece of data can represent an infinite number of different
> things depending on the software that interprets it. What may be an
> mp3 file to one program may look like snow to an image editor.
If we invited an inhabitant of a strange universe to our universe
(e.g. to an interuniversal conference), he would most probably
perceive nothing but random noise (if his senses allow him to perceive
anything at all). He would feel like the image editor confronted with
an mp3 file. Though, the fact that we being humans perceive something
useful is self-evident since we are a product of evolution within our
universe. Useful interpretation of the environment has been a
necessary condition for survival. The successful analogy between an
observer and a computer program shows that the process of observation
has a computational character: The observer 'calculates' a meaning for
his perception in a systematic way (which was elaborated
evolutionary). We can formalize this similar to Russell and introduce
the map from descriptions to meanings as a property of the observer.
The second problem you address in your message concerns the embedding
of the observer in the universe's description (you write of "self-
aware substructres"). You give a very nice example:
> Some piece of advanced technology maps out the neural network of
> one's brain, including which neurons are firing at the instance the brain
> was scanned and then saves it as a file. Does this file on the computer
> constitute an observer moment? Does duplicating this file increase that
> observer moment's measure? Or for it to constitute an observer does some
> software have to load the file and simulate future evolutions of brain
> states in a manner consistent with how a real brain would to create a valid
> observer moment?
Before I'm writing an uncompleted answer, I'd prefer to read what the
long-time participants (Russell, Bruno and others) are thinking about
this point.
Youness
> However, it does seem to be true that not all strings are capable of
> being interpreted as an observer moment of a conscious observer.
I still would appreciate what do you mean by a string being interpreted
as an observer moment of an observer, without comp.
Without comp, I don't find any clear definition of "interpretation"
which gives sense in such a context.
(Wait perhaps my comment of the post you have addressed to me ...).
Bruno
But such information processing needn't imply that only computable
functions are used. So COMP is not necessarily true.
Cheers
> Instead something like the Universal Dovetailer is required, in which
> the states created have different meanings depending on program to
> which it belongs.
Yes, different meaning from the inside points of view, which defined
different measure on the relative set of possible computational
histories.
From the third person point of view we just cannot know which histories
support us, and to get the proportions right we have to bet we belong
at least on a continuum (from the 1-pov view).
Bruno