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Some people find it surprising this could occur in silico? Another old example is <a href="https://en.m.wikipedia.org/wiki/Core_War">https://en.m.wikipedia.org/wiki/Core_War</a><br>
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<blockquote type="cite">On Oct 19, 2021, at 10:15 PM, ⛧ glen <gepropella@gmail.com> wrote:<br>
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<div dir="ltr"><span>But it's a specific kind of memory: a) shared and b) abused or misused. There should be a decoupling of the objectives of the writer from the objectives of the reader. A good example is a hermit crab using a soup can as its shell. Or an
urban kid mistaking modern bananas for "natural" food.</span><br>
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<span>The "indirectness" in the definition obscures some nuance that needs some attention.</span><br>
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<span>On October 19, 2021 8:56:28 PM PDT, Marcus Daniels <marcus@snoutfarm.com> wrote:</span><br>
<blockquote type="cite"><span>I don’t actually get what is interesting about the term. In computer science it would be a “blackboard system” or simply “memory”.</span><br>
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<blockquote type="cite"><span>From: Friam <friam-bounces@redfish.com> On Behalf Of Nicholas Thompson</span><br>
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<blockquote type="cite"><span>Sent: Tuesday, October 19, 2021 8:34 PM</span><br>
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<blockquote type="cite"><span>To: The Friday Morning Applied Complexity Coffee Group <friam@redfish.com></span><br>
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<blockquote type="cite"><span>Subject: Re: [FRIAM] stygmergy, CA's, and [biological] development</span><br>
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<blockquote type="cite"><span>Ugh. I was making fun of myself. If everything is stigmergy then the word has no interesting use.</span><br>
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<blockquote type="cite"><span>I am in danger of confusing it with niche construction. The concept offers an alternative to Lamarckian mechanisms for an organism to direct its own evolution. It's like the inheritance of acquired environments. I think of
it as including such phenomena as squirrels and jays putting acorns in the ground and thus providing an environment rich with food for the winter and also, perhaps, in the very long run, future oak trees. In some sense, the environment that selects the organism
is an environment that is selected by the organism.</span><br>
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<blockquote type="cite"><span>I think the word does have a use, but only if we distinguish between things left behind that positively affect those that follow. To my surprise, the word is apparently of recent origin having been specifically invented to apply
to ant pheromone trails in the fifties. So, I suppose we might narrow it's meaning to objects left to convey information and leave niche construction to apply to objects that provide shelter, nutrition or other benefits to the finder, eg., acorns, beaver
dams,</span><br>
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<blockquote type="cite"><span>Thanks for pitching in, everybody. You have helped to drive me out of my post travel lassitude.</span><br>
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<blockquote type="cite"><span>On Tue, Oct 19, 2021 at 8:36 PM Frank Wimberly <wimberly3@gmail.com<mailto:wimberly3@gmail.com>> wrote:</span><br>
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<blockquote type="cite"><span>Aren't we all immersed in stygmergy continuously while we're alive and maybe before and after? This is a possible interpretation of Nick's comment that everything is stygmergy.</span><br>
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<blockquote type="cite"><span>Frank C. Wimberly</span><br>
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<blockquote type="cite"><span>140 Calle Ojo Feliz,</span><br>
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<blockquote type="cite"><span>Santa Fe, NM 87505</span><br>
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<blockquote type="cite"><span>505 670-9918</span><br>
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<blockquote type="cite"><span>On Tue, Oct 19, 2021, 8:29 PM Marcus Daniels <marcus@snoutfarm.com<mailto:marcus@snoutfarm.com>> wrote:</span><br>
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<blockquote type="cite"><span>What I was driving at is that nature doesn’t give a damn whether we categorize certain globs of stuff as “agents” or “environment” or “transactions”. Stigmergy could be going all the time in some subtle way we can’t discern because
we are looking at the pieces the wrong way.</span><br>
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<blockquote type="cite"><span>On Oct 19, 2021, at 1:05 PM, uǝlƃ ☤>$ <gepropella@gmail.com<mailto:gepropella@gmail.com>> wrote:</span><br>
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<blockquote type="cite"><span>To be clear though, this requires a flexible understanding of "agent" or whatever's doing the indirect coordinating "through" the environment. I.e. "stygmergy" isn't very well defined.</span><br>
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<blockquote type="cite"><span>On 10/19/21 12:58 PM, Marcus Daniels wrote:</span><br>
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<blockquote type="cite"><span>Game of Life has been shown to be universal</span><br>
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<blockquote type="cite"><span>https://uwe-repository.worktribe.com/output/822575/turing-machine-universality-of-the-game-of-life <https://uwe-repository.worktribe.com/output/822575/turing-machine-universality-of-the-game-of-life></span><br>
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<blockquote type="cite"><span>I would expect there are many “intermediate lambda” CAs that behave this way, and so could implement any simulation manifesting stigmergy.</span><br>
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<blockquote type="cite"><span>*From:* Friam <friam-bounces@redfish.com<mailto:friam-bounces@redfish.com>> *On Behalf Of *Jochen Fromm</span><br>
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<blockquote type="cite"><span>*Sent:* Tuesday, October 19, 2021 12:40 PM</span><br>
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<blockquote type="cite"><span>*To:* The Friday Morning Applied Complexity Coffee Group <friam@redfish.com<mailto:friam@redfish.com>></span><br>
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<blockquote type="cite"><span>*Subject:* Re: [FRIAM] stygmergy, CA's, and [biological] development</span><br>
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<blockquote type="cite"><span>Interesting point. What do the others think?</span><br>
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<blockquote type="cite"><span>I think if you start with an "X" at the top and consider the X as your agent and the space to the left and right as the environment then yes, we would have a kind of stygmergy model for an agent which interacts in a two dimensional
world (one space and one time dimension). It is a rather limited model though. I am not sure if it is useful :-/</span><br>
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<blockquote type="cite"><span>-------- Original message --------</span><br>
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<blockquote type="cite"><span>From: thompnickson2@gmail.com<mailto:thompnickson2@gmail.com> <mailto:thompnickson2@gmail.com<mailto:thompnickson2@gmail.com>></span><br>
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<blockquote type="cite"><span>Date: 10/19/21 21:28 (GMT+01:00)</span><br>
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<blockquote type="cite"><span>To: 'The Friday Morning Applied Complexity Coffee Group' <friam@redfish.com<mailto:friam@redfish.com> <mailto:friam@redfish.com<mailto:friam@redfish.com>>></span><br>
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<blockquote type="cite"><span>Subject: Re: [FRIAM] stygmergy, CA's, and [biological] development</span><br>
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<blockquote type="cite"><span>Thanks, Jochen, for answering.</span><br>
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<blockquote type="cite"><span>Let me try to stretch the point and see if I can bring you on board. In the first place, mimimally, stygmergy need not involve sociality. So, If I go out on a hike and cut blazes on trees on my way out so I can find my way home,
that is stygmergy in good standing, right?</span><br>
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<blockquote type="cite"><span>Now let’s try a very simple ca where the rule is, if nothing is written, write x; if x, white o beside; if o, write x beside.</span><br>
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<blockquote type="cite"><span>Now, if we consider what is written at each stage as a thing put out in the environment and the “rules” what the organism brings to the table then each line is the joint product of the previous line and the rule, hence stygmergy.</span><br>
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<blockquote type="cite"><span>Am I stretching a point. Is everything not stygmergy?</span><br>
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<blockquote type="cite"><span>ThompNickSon2@gmail.com<mailto:ThompNickSon2@gmail.com> <mailto:ThompNickSon2@gmail.com<mailto:ThompNickSon2@gmail.com>></span><br>
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<blockquote type="cite"><span>https://wordpress.clarku.edu/nthompson/ <https://wordpress.clarku.edu/nthompson/></span><br>
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<blockquote type="cite"><span>*From:* Friam <friam-bounces@redfish.com<mailto:friam-bounces@redfish.com> <mailto:friam-bounces@redfish.com<mailto:friam-bounces@redfish.com>>> *On Behalf Of *Jochen Fromm</span><br>
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<blockquote type="cite"><span>*Sent:* Tuesday, October 19, 2021 1:05 PM</span><br>
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<blockquote type="cite"><span>*To:* The Friday Morning Applied Complexity Coffee Group <friam@redfish.com<mailto:friam@redfish.com> <mailto:friam@redfish.com<mailto:friam@redfish.com>>></span><br>
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<blockquote type="cite"><span>*Subject:* Re: [FRIAM] stygmergy, CA's, and [biological] development</span><br>
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<blockquote type="cite"><span>No, CAs are not a good model for stygmergy IMHO. Stygmergy is as Wikipedia says a mechanism of indirect coordination through the environment. For example: ants which exploit a food source by following a pheromone trail. Or termites
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<blockquote type="cite"><span>In Cellular Automata there is no clear distinction between agent and environment. They are just a grid of states which evolves step by step by updating the cells with a transition rule or function.</span><br>
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<blockquote type="cite"><span>The other type of collective intelligence besides stygmergy is swarm formation. The individual member is attracted to the group as a whole but repelled by other individuals. You know the classic Boids rules which govern fish swarms
and bird flocks: "stay close to the group but keep away from your neighbors".</span><br>
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<blockquote type="cite"><span>For more complex things you probably need a code. If the individuals are smart, then a few rules are enough - holy books have typically only a few MB. If the individuals are lifeless molecules, then the code can be several GB (a
human genome has roughly 3 GB).</span><br>
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<blockquote type="cite"><span>Hope that helps a bit? You are lucky to have such a smart grandson! I believe Frank has grandchildren too.</span><br>
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<blockquote type="cite"><span>-------- Original message --------</span><br>
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<blockquote type="cite"><span>From: thompnickson2@gmail.com<mailto:thompnickson2@gmail.com> <mailto:thompnickson2@gmail.com<mailto:thompnickson2@gmail.com>></span><br>
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<blockquote type="cite"><span>Date: 10/19/21 20:15 (GMT+01:00)</span><br>
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<blockquote type="cite"><span>To: 'The Friday Morning Applied Complexity Coffee Group' <friam@redfish.com<mailto:friam@redfish.com> <mailto:friam@redfish.com<mailto:friam@redfish.com>>></span><br>
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<blockquote type="cite"><span>Subject: [FRIAM] stygmergy, CA's, and [biological] development</span><br>
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<blockquote type="cite"><span>Friends,</span><br>
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<blockquote type="cite"><span>Beware. As usual, I am trying to get you to think for me.</span><br>
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<blockquote type="cite"><span>My grandson is working on a regeneration project in his freshman biolab (Planaria) and his sources and texts are replete with cognitive language like “signal” and “memory” etc., which implies that as the worm regenerates it is
influenced by a guiding idea of what it is producing. My basic intuition, as you know, that this doesn’t happen in human cognition, let alone worm regeneration and that processes that produce a functional head from a slice of the rear end of a flatworm have
no idea what they are doing even when they are done. Thus I imagine an advancing edge of structure with each new bit influencing the rules by which the next bit . Which, of course, puts me in mind both of stygmergy and of Cellular Automata. So to my questions:</span><br>
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<blockquote type="cite"><span>Are Cellular Automata a good model for Stygmergy?</span><br>
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<blockquote type="cite"><span>Is Stygmergy a good model for organismic development?</span><br>
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<blockquote type="cite"><span>Why? Or Why not? Discuss.</span><br>
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<blockquote type="cite"><span>Also, is there a good website, citizen-friendly, steep learning curve, where my grandson and I could explore the relation between developmental processes and ca’s. I looked at NewLogo Library and did not find there any models
of regeneration, but may not have known where to look. I did find THIS <https://distill.pub/2020/growing-ca/> which deep down in the Table of Contents seemed to have three regeneration models including one named “Planaria”, but I could no see how to go further
with it. If somebody could have a look at it and give me some tips for how to use it, I would be ever so grateful.</span><br>
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<span></span><br>
<span>-- </span><br>
<span>glen ⛧</span><br>
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