My app that reads emails aloud, as they arrive, says "a new email has arrived from Glen biohazard". I finally see why.
Frank Wimberly Phone (505) 670-9918 On May 26, 2017 6:08 PM, "glen ☣" <geprope...@gmail.com> wrote: > On 05/26/2017 04:54 PM, Stephen Guerin wrote: > > I am listening to Russ. I do think he's defining a sub-class of complex > > systems (eg living systems). I would like to keep the definition of > > "complex systems" broader than that though. > > OK. But I don't think he's necessarily _asserting_ that only living > systems are complex systems. He's just asking the question and engaging in > a discussion wherein we might be able to refine his sub-category so that it > includes physical systems. > > > I understand the subtle distinction your trying to make. I would say the > > full phase space of a *complex system* has narrow critical regimes in > their > > behavior (phase) space where *complex behavior* is observed as the > control > > parameters are swept through the phase transition. In the critical regime > > we see complex behavior like sensitivity to initial conditions, critical > > slowing down, critical fluctuations, power law statistics, long-range > > correlations, etc. On either side of the phase transition (eg > sub-critical > > and super-critical) regimes, these statistics and behaviors are not > present. > > > > That said, while the critical regime may be narrow in phase space many of > > these system "self-tune" to the critical point but that's another thread. > > > > Agreed? > > Not quite. If these systems merely contain subsystems capable of > exhibiting complexity, then those 3 you listed are not complex systems. > They are "subsystems capable of exhibiting complexity". So, no. They are > not complex systems in isolation. Russ' question, I think, targets > naturally occurring, whole complex systems. > > Now, if we add the experimental apparatus that, eg, maintains a ZB > reaction for a long time, then that _whole_ system can be called a complex > system. But there's significant meat to the controlling subsystem ... and > we biological creatures instantiated it. The case is the same with, say, > glycolysys. > > All you need do is identify the circumstances where those three processes > (ferromag, benard cells, BZ reactions) occur in nature and then we might be > able to identify the systems in which they sit. Then we can test them > against whatever predicate we want. > > -- > ☣ glen > > ============================================================ > FRIAM Applied Complexity Group listserv > Meets Fridays 9a-11:30 at cafe at St. John's College > to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com > FRIAM-COMIC http://friam-comic.blogspot.com/ by Dr. Strangelove
============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com FRIAM-COMIC http://friam-comic.blogspot.com/ by Dr. Strangelove
