Re: Relaxed Selection, a b-level posting

Posted by Phil Henshaw-2 on
URL: http://friam.383.s1.nabble.com/Relaxed-Selection-a-b-level-posting-tp1315075p1322856.html

Well, maybe their environment is less rich than some, but is then just what
they CAN explore, and have different ways to respond to.   I guess you let
them eat each other or leave each other along.  Maybe they could also attach
different tags to each other to identify 'good guys' from 'bad guys' to be
recognized by others maybe, or other things.  In nature a major complication
is that organisms rely on others of different kinds for their resources and
so competitive advantage is generally unstable if anyone 'wins' the
'competition'.  Maybe you could have 'poison' that is toxic to all produced
and slowly dissipate if any one organism dominates or something, and see
what strategy variations might regulate their discovery of how to maximize
the community without that happening.

Phil

> -----Original Message-----
> From: Russell Standish [mailto:[hidden email]]
> Sent: Sunday, October 12, 2008 7:20 AM
> To: [hidden email]; The Friday Morning Applied Complexity Coffee Group
> Subject: Re: [FRIAM] Relaxed Selection, a b-level posting
>
> On Fri, Oct 10, 2008 at 01:54:45PM -0400, Phil Henshaw wrote:
> > Russ,
> > You say: "I'm trying a slightly different tack with Tierra, of
> artificially
> > inducing mass extinctions every now and then. I have also tried
> reducing
> > parsimony pressure from time to time (I'm not sure what would be the
> > biological world equivalent of this - possibly variation in
> background
> > radioactivity or cosmic rays)..."
> >
> > If your 'organisms' in Tierra were organized around feedback loops
> that
> > developed by exploring their environments, might you experiment with
> have
> > them be variably exploratory?
> >
> > Phil
> >
>
> Tierran organism are much simpler than that. They basically just
> reproduce until they die. Some manage to parasitise the resources of
> others. But there is little in the way of environment for them to
> explore (which is a criticism levelled at these experiments to be
> sure).
>
> --
>
> -----------------------------------------------------------------------
> -----
> A/Prof Russell Standish                  Phone 0425 253119 (mobile)
> Mathematics
> UNSW SYDNEY 2052                 [hidden email]
> Australia                                http://www.hpcoders.com.au
> -----------------------------------------------------------------------
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