Re: Relaxed Selection, a b-level posting

Posted by Russell Standish on
URL: http://friam.383.s1.nabble.com/Relaxed-Selection-a-b-level-posting-tp1315075p1322063.html

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).

--

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