This excellent blog post about planaria and their insane regenerative abilities turned up on hackernews barely two weeks ago,
https://www.rifters.com/crawl/?p=10007 -- rec -- On Tue, Oct 19, 2021 at 3:42 PM uǝlƃ ☤>$ <geprope...@gmail.com> wrote: > Yes, some types of CA can be stygmergic. The separation between the > environment and the agent is clear in that the "agent" is the per-cell > algorithm (some CAs have multiple algorithms, a spectrum from a global > algorithm updating all cells to a different algorithm for each cell). The > "environment" is the state of the cell at any given time. You might even go > so far as to allow for the evolution of the algorithm(s) based on the > contents of the cell ... or the evolution of the structure of the cellular > state based on its history (the simplest form being where each cell > accumulates state). > > But, no, not everything is stygmergic. A typical CA, with a global, > synchronized, buffered update and all you're looking at is the historical > visualization of that state would not be. The primary problem is the > buffering. If the buffer is flushed every cycle, there's no cumulative > effect. So your example below is not stygmergic. > > On 10/19/21 12:24 PM, thompnicks...@gmail.com wrote: > > 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? > > > > > > > > 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. > > > > > > > > X > > > > OXO > > > > XOXOX > > > > ETC. > > > > > > > > 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. > > > > > > > > Am I stretching a point. Is everything not stygmergy? > > -- > "Better to be slapped with the truth than kissed with a lie." > ☤>$ uǝlƃ > > > .-- .- -. - / .- -.-. - .. --- -. ..--.. / -.-. --- -. .--- ..- --. .- - . > FRIAM Applied Complexity Group listserv > Zoom Fridays 9:30a-12p Mtn UTC-6 bit.ly/virtualfriam > un/subscribe http://redfish.com/mailman/listinfo/friam_redfish.com > FRIAM-COMIC http://friam-comic.blogspot.com/ > archives: > 5/2017 thru present https://redfish.com/pipermail/friam_redfish.com/ > 1/2003 thru 6/2021 http://friam.383.s1.nabble.com/ >
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