Hey, I posted the arxiv papers for the mechanically coupled complex adaptive organism a few weeks ago, no nervous system required for a multicellular predator to pounce on a patch of algae, nervous systems are entirely optional.
-- rec -- On Fri, Apr 1, 2022 at 5:11 PM Steve Smith <[email protected]> wrote: > > this discussion lead my free-associative, somewhat atrophied brain (or is > it mind?) back to this paper: > > Digital Information Mechanics, Edward Fredkin 1981 > > http://52.7.130.124/wp-content/uploads/2015/07/PhysicistModelofComputation.pdf > > which I was surprised to find online (I think I have looked before). I > have a (very yellowed) paper copy of this in a dusty box at the bottom of a > dusty stack of boxes somewhere. I am about to re-read it (online) but felt > I would just tangent wildly (as I am wont to do) if I did so before sending > it to the group for your own thoughts. > > Fredkin himself handed me the paper copy when I met him at the Cellular > Automata conference at LANL in 1983. I was incredibly green at the time > and quite eager in many dimensions, but this particular workshop/conference > really blew me away in it's combination of abstractions and concrete > examples. From Wolfram's 4 categories of CA to meeting Conway, to seeing > Crutchfield's video-feedback-as-CA, to having Feynman hisself introduce the > Toffoli Gate and Drexler's work that became "Engines of Creation" in the > context of reeling out his circa 1957 "Plenty of Room at the Bottom" talk. > If I remember right, Margolis and/or Tofolli had a Toffoli-gate based CA > hardware device at the conference that they couldn't quite keep running. > Also, Gosper's memoised implementation of GoL added a whole other set of > entropic implications with allusions to digital physics implied. > > I don't fully subscribe to the variations on Fredkin's "Digital > Physics/Philosophy" or Wheeler's "It from Bit" and as hard as I try I can't > penetrate far enough into Wolfram's variations to do more than wish I could > and wonder if there is meaning (relevance?) in there? > > > > Frank - > > Formal logic is not a god but exists independently of nervous systems. > > A -> B <-> -B -> -A > > But is it *relevant* to anything independent of (central?) nervous > systems? > > I know this isn't precisely what you meant, but I would suggest that > formal logic and gods have more in common than not, being both artifacts > *of* special kinds of symbols and transformation systems for them. I don't > know that molluscs (even cephalapods) have formal logics nor gods (though > they may well be capable of some kind of arcane modeling and prediction > that is in some sense equally powerful/useful/interesting). > > - Steve > > PS. I liked EricCs reformulation of the scenario, it fit well how *I* > parsed and sorted things out. > > .-- .- -. - / .- -.-. - .. --- -. ..--.. / -.-. --- -. .--- ..- --. .- - . > FRIAM Applied Complexity Group listserv > Zoom Fridays 9:30a-12p Mtn UTC-6 bit.ly/virtualfriam > un/subscribe <http://bit.ly/virtualfriamun/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/ > > > .-- .- -. - / .- -.-. - .. --- -. ..--.. / -.-. --- -. .--- ..- --. .- - . > 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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