________________________________
From: meekerdb <meeke...@verizon.net>
To: everything-list@googlegroups.com
Sent: Sunday, August 31, 2014 2:06 PM
Subject: Re: AI Dooms Us
On 8/31/2014 12:18 PM, 'Chris de Morsella' via Everything List wrote:
From:everything-list@googlegroups.com [mailto:everything-list@googlegroups.com]
On Behalf Of John Clark
Sent: Sunday, August 31, 2014 9:27 AM
To: everything-list@googlegroups.com
Subject: Re: AI Dooms Us
On Thu, Aug 28, 2014 at 7:30 AM, Telmo Menezes <te...@telmomenezes.com> wrote:
> > The Kolmogorov complexity of AGI could be relatively low -- maybe it can be
> > expressed in 1000 lines of lisp.
That is not a crazy idea because we know for a fact
that in the entire human genome there are only 3
billion base pairs. There are 4 bases so each base can
represent 2 bits, there are 8 bits per byte so that
comes out to just 750 meg, and that's enough assembly
instructions to make not just a brain and all its
wiring but a entire human baby. So the instructions
MUST contain wiring instructions such as "wire a
neuron up this way and then and then repeat that
procedure exactly the same way 917 billion times". And
there is a huge amount of redundancy in the human
genome, if you used a file compression program like
ZIP on that 750 meg you could easily put the entire
thing on half a CD, not a DVD not a Blu ray just a old
fashioned steam powered vanilla CD.
John K Clark
Just want to point out that the process of DNA expression is highly dynamic and
is multi-factored (including environmental driven epigenetic feedback). This is
especially so during the process of embryogenesis, an unfolding developmental
choreographed switching process that is controlled by epigenetic programming
(methylation/demethylation and other mechanisms). The mammalian genomes undergo
very extensive genomic reprogramming during embryogenesis.
DNA is not a direct single layered – single meaning -- instruction set encoded
and fixed. The expression of hereditary information is a multi-layered, dynamic
and epigenetically influenced (driven) process, and this is especially true
during embryogenesis. The same strand of DNA, depending on the dynamic action
of the large number of transcription factors (there are 2600 identified
proteins in the human genome that contain DNA-binding domains and it is thought
that 10% of our genome is involved in encoding this large family of
transcription factors) can encode very different mRNA and result in different
outcomes and be used for different purposes.
It is – IMO – necessary to understand DNA as an encoded bundle of potential
instructions that through a highly dynamic transcription process becomes
actualized.
The actual expression of the underlying DNA blueprint is best understood in
terms of it being a dynamic, environmentally and developmentally influenced
process. DNA is arranged… and re-arranged – read forwards or backwards with
coding sections turned on or off – in a large number of different ways.
-Chris
But all the information for that back and forth on and off
transcription factors, binding domains, etc. has to be either
encoded in the DNA or extracted from the environment.
Brent
Sure.. of course, but the epigenetic overlay, which is an external factor adds
a layer of indirection and complexity to the process that is only beginning to
be understood and can affect the genetic expression outcome in fundamental
ways. Even with DNA expression there is a whole lot of feedback systems that
are at work which alter the end expression that is actually produced.
Any system that can become influenced by external feedback mechanisms is far
more complex than a purely directed system.
-Chris
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