On 16 May 2014, at 18:57, Dennis Ochei wrote:
I'm gathering that dovetailing means alternating through the
programs, essentially multithreading, so that the UD doesn't get
stuck on an unhalting computation.
Yes. OK.
The UD can be programmed, by the enumeration theorem: we can enumerate
the set of partial computable function, by enumerating the programs in
some universal programming language. But this entails that non total
functions will appear (in a non algorithmic generable way) in the
sequence, and that explains the need to dovetail. I can give more
detail. This also implies a unavoidable redundancy, which plays some
roie in giving sense to the measure.
Bruno
On Fri, May 16, 2014 at 4:33 AM, Dennis Ochei
<[email protected]> wrote:
Bruno, I get everything until you bring in the UD and then I only
understand pieces of what you are saying.
> if we want build a universal machine, which is
not only able to emulate all machines, but which actually does the
emulation of each machine,
we will be obliged to dovetail on each execution
What does it mean to dovetail on each execution?
On Fri, May 16, 2014 at 3:51 AM, Dennis Ochei
<[email protected]> wrote:
For anyone who hasn't yet enjoyed the Cyberiad
On Fri, May 16, 2014 at 3:24 AM, Dennis Ochei
<[email protected]> wrote:
> This is so true that if you push the reasoning you will understand
that the primitive character of physics is an illusion, even if a
particular important one that no machines can avoid (statistically).
I want to grok this statement can you give me more? Why is physics
an illusion
> Are you OK that the probability to find yourself in Moscow is 1/2,
when you are read and cut in Helsinki, and build again in Moscow and
Washington?
I'm down with that
> It is an easy exercise to show that the iteration of such
duplication leads to non compressible white noise for most of the
2^n persons obtained when the duplication experiment is repeated n
times.
Don't get this either, but I haven't finished the paper, so maybe
that will illuminate things
On Fri, May 16, 2014 at 3:19 AM, Bruno Marchal <[email protected]>
wrote:
On 16 May 2014, at 06:41, Dennis Ochei wrote:
The more I think about the subjective expectation question the more
meaningless it becomes. I'm not asking if a future person is
physically or psychologically like me, I know the answer to that.
In fact, even if I knew every physical fact about a body and had a
complete knowledge of the neural correlates of consciousness I
still wouldn't know if it was realizing my consciousness or a
consciousness that is merely precisely like mine. This question of
whether a past or future experience did or will belong to me is
distinctly extraphysical.
This is so true that if you push the reasoning you will understand
that the primitive character of physics is an illusion, even if a
particular important one that no machines can avoid (statistically).
Are you OK that the probability to find yourself in Moscow is 1/2,
when you are read and cut in Helsinki, and build again in Moscow and
Washington?
This is used implicitly in Everett Quantum mechanics, but with
computationalism, that you accept, this extends to the space of all
subjective experience realized in elementary arithmetic.
It is an easy exercise to show that the iteration of such
duplication leads to non compressible white noise for most of the
2^n persons obtained when the duplication experiment is repeated n
times.
Bruno
On Thursday, May 15, 2014, LizR <[email protected]> wrote:
On 16 May 2014 15:32, meekerdb <[email protected]> wrote:
On 5/15/2014 6:06 PM, LizR wrote:
On 16 May 2014 13:02, Russell Standish <[email protected]>
wrote:
On Fri, May 16, 2014 at 12:10:20PM +1200, LizR wrote:
>
> I don't think we replace our brain cells, but even if we do,
isn't the fact
> > that they are replaced and the replacements are functionally
similar
> > important to who we are?
> >
> > We do, apparently.
>
http://www.theguardian.com/science/neurophilosophy/2012/feb/23/brain-new-cells-adult-neurogenesis
>
> (I know I could do with some new ones ... or do I mean
"neurones" ?)
>
I think that is more about brain repair, than material replacement
in
cells, and only involves a few percent of neurons.
It turns out the carbon atoms in the DNA of neural cells is
remarkable
long lived, as chronicled via the radiation spike due to atmospheric
nuclear weapons testing in 50s & 60s. I don't have a cite on hand,
but the result is that your neuronal DNA is on average about two
years
younger than your own age. For most other cell types, the average
age
is around 7 years, or something like that.
So physical continuity may be important, in which case it's
possible "yes doctor" is a bad bet.
It's all relative. If the alternative is dying of liver cancer it
might still be a good bet.
If physical continuity is important, these aren't alternatives.
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Neuroscience/Computer Science, Music 3♭
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Neuroscience/Computer Science, Music 3♭
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Baylor College of Medicine '18
Duke University '13
Neuroscience/Computer Science, Music 3♭
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Baylor College of Medicine '18
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Neuroscience/Computer Science, Music 3♭
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