In this case in that flawed society the fitness of the 99% of the people
with 10 children was 0.

THat is because the environment may change a lot.  Men have been on the
verge of extinction. The last time was about 70.000 years ago, where a few
thounsands survived. What a extraterrestrial evolutiometrist would say
about the fitness of these people 70.000 years ago?


2013/9/10 Alberto G. Corona <[email protected]>

> It was zero. but the  evolutiometrist said me a few decades ago that my
> fitness was certainly 10.
>
> That is why I said that either this measure is flawed or alternatively, if
> it is accurate (like this), it is useless (as a durable parameter to
> predict something)
>
>
> 2013/9/10 Telmo Menezes <[email protected]>
>
>> On Tue, Sep 10, 2013 at 12:02 PM, Alberto G. Corona <[email protected]>
>> wrote:
>> > I think that the whole business of putting numbers to fitness and so on
>> > either is flawed or alternatively if the parameter is accurate, it is
>> > useless.
>>
>> Snow leopards are much more likely to go extinct than E. Coli
>> bacteria. The latter are much less complex, so evolved complexity
>> doesn't always help. I think this is an interesting fact.
>>
>> > In the long term anything could happen. I can have 10 children in a
>> flawed
>> > society that enter in decadence and war. And maybe I support the ideas
>> that
>> > push this society to the limits.  Then most of these sons die a few
>> decades
>> > later by war, hunger etc. What was my fitness?.
>>
>> It was zero, but for most of the people that had 10 children it turned
>> out to be high, so a high estimation was a reasonable one. Couldn't
>> this criticism be applied to statistics in general? Pill X cures 99.9%
>> of people with pneumonia, but it killed Mr. Y because he had a weird
>> genetic mutation. Was it reasonable to give Mr. Y the pill?
>>
>> Telmo.
>>
>> >
>> > 2013/9/10 Telmo Menezes <[email protected]>
>> >>
>> >> On Tue, Sep 10, 2013 at 1:52 AM, Russell Standish <
>> [email protected]>
>> >> wrote:
>> >> > On Mon, Sep 09, 2013 at 11:58:37AM +0200, Telmo Menezes wrote:
>> >> >> Hi Alberto,
>> >> >>
>> >> >> On Mon, Sep 9, 2013 at 10:55 AM, Alberto G. Corona
>> >> >> <[email protected]> wrote:
>> >> >> > I think that there are real progress that can be even measured in
>> >> >> > terms of
>> >> >> > entropic order. That a man embodies more structure and
>> organization
>> >> >> > than a
>> >> >> > bacteria is objective and measurable, and it is a product  of more
>> >> >> > emergent
>> >> >> > levels of evolution. In concrete the human being includes the
>> >> >> > eucariotic
>> >> >> > level, the multicelularity level and human society level, that are
>> >> >> > aggregations of coordinated individuals to achieve an
>> individuality
>> >> >> > of an
>> >> >> > higher level. These levels are absent in bacteria .
>> >> >>
>> >> >> Ok, there's an arrow of complexification, that's undeniable. I'm not
>> >> >> convinced that Darwinism alone explains that. One of the reasons for
>> >> >> my scepticism is the failure of ALife models to replicate unbounded
>> >> >> complexification. My favourite attempt in this domain is the Echo
>> >> >> model by John Holland -- which is beautiful but didn't work in this
>> >> >> sense. There's also Tierra/Avida, where you get a lot of interesting
>> >> >> stuff but no unbounded complexification.
>> >> >>
>> >> >> One idea I heard but don't know whom to attribute to is this:
>> >> >> evolutionary complexification is just an artefact of the simplicity
>> of
>> >> >> the initial state. The idea being that the laws of physics
>> inherently
>> >> >> contain a "pressure" towards a certain level of complexity and that
>> >> >> evolution is just following the path of least resitance, in a way.
>> It
>> >> >> is then conceivable that there is a state of equilibrium that we
>> >> >> haven't reached yet and that complexification will halt at some
>> point.
>> >> >> This is wild speculation, of course, but I like to ponder on this
>> >> >> hypothesis.
>> >> >>
>> >> >
>> >> > I think this idea goes by the name of "modal bacter". It was,
>> perhaps,
>> >> > most
>> >> > forcefully argued in Stephen Gould's 1996 book "Full House".
>> >>
>> >> Thanks Russell!
>> >>
>> >> > I suspect the idea is wrong, because it fails to explain the
>> >> > exponential growth of diversity, seemingly observed by
>> >> > Palaeontologists such as Michael Benton:
>> >> >
>> >> > @Article{Benton01,
>> >> >   author =       {Michael J. Benton},
>> >> >   title =        {Biodiversity on Land and in the Sea},
>> >> >   journal =      {Geological Journal},
>> >> >   year =         2001,
>> >> >   volume =       36,
>> >> >   pages =        {211--230}
>> >> > }
>> >>
>> >> Ok, but I guess that depends on how we measure diversity, which is not
>> >> a trivial matter. From a quick look at this paper, it seems to focus
>> >> on the number of biological orders/families/genus. Suppose we were
>> >> able to estimate the Kolmogorov complexity of the entire ecosystem, do
>> >> you figure it would also grow exponentially?
>> >>
>> >> >> > What is not true is that human beings are more "adapted" than
>> >> >> > bacteria. That
>> >> >> > is not true. Because there is no objective and absolute measure of
>> >> >> > adaptation. It ever depends on the concrete environment, and
>> varies a
>> >> >> > lot.
>> >> >>
>> >> >> Humm... I think ecologists are able to estimate the likelihood of a
>> >> >> species going extinct. I'd argue that this could be taken as a
>> measure
>> >> >> of adaption.
>> >> >>
>> >> >
>> >> > That measure is called persistence, and no, it is not really related
>> to
>> >> > adaption. For an adaption measure, one good possibility is Mark
>> >> > Bedau's "cumulative evolutionary activity"
>> >> >
>> >> > @InProceedings{Bedau-etal98,
>> >> >   author =       {Mark A. Bedau and Emile Snyder and Norman H.
>> Packard},
>> >> >   title =        {A Classification of Long-Term Evolutionary
>> Dynamics},
>> >> >   crossref =     {ALifeVI},
>> >> >   pages={228--237}
>> >> > }
>> >>
>> >> I read this paper some years ago, it's a very nice one.
>> >> I would say that cumulative evolutionary activity is a metric that
>> >> applies to the entire evolutionary system as a whole. The article
>> >> makes it depressingly clear the Holland's Echo does not match the
>> >> unbounded evolution dynamics found in the fossil record. But maybe I'm
>> >> missing something.
>> >>
>> >> In the previous discussion I was arguing that persistence could be
>> >> intuitively taken as a fitness measure of some specific population or
>> >> species, and I still feel that's the case. If you want to estimate the
>> >> biological fitness of an individual, you could determine an analogous
>> >> probability of the individual producing x viable offsprings before
>> >> dying.
>> >>
>> >> I think.
>> >>
>> >> Telmo.
>> >>
>> >> >
>> >> > --
>> >> >
>> >> >
>> >> >
>> ----------------------------------------------------------------------------
>> >> > Prof Russell Standish                  Phone 0425 253119 (mobile)
>> >> > Principal, High Performance Coders
>> >> > Visiting Professor of Mathematics      [email protected]
>> >> > University of New South Wales          http://www.hpcoders.com.au
>> >> >
>> >> >
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> --
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>



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