Thank you, Russell, for your attempt to meet me half way here. I have
discovered again and again that, propositions which make little sense to me when I encounter them in FRIAM, become comprehensible over time if I can struggle with the proposition maker to find a common language. So I hope you will stick with me here, although I would completely understand if you lost patience. I THINK what you are saying here, translated into my terms, is that complexity does have an alternative to bean bag genetics for accounting for the similarity between parents and offspring. If I am correct in my surmise, then it is VERY important for me to try and figure out what is going on here. Particular comments below in CAPS. I promise I am not SHOUTING. Nick Nicholas S. Thompson Professor of Psychology and Ethology Clark University [hidden email] http://home.earthlink.net/~nickthompson/ [hidden email] > [Original Message] > From: Russell Standish <[hidden email]> > To: <[hidden email]>; The Friday Morning Applied Complexity Coffee Group <[hidden email]> > Date: 1/26/2005 1:40:40 PM > Subject: Re: [FRIAM] Help with inheritance. > > I'm not entirely sure what you mean by "Is there a complexity theory > of evolution without inheritance", but I know of no evolutionary > process studied in complex systems research that doesn't have > inheritance. I SHOULD HAVE BEEN MORE SPECIFIC. BEYOND HAND WAVING BY BRIAN GOODWIN IN "LEOPARDS SPOTS", HAS ANY COMPLEXITY TYPE EVER IMAGINED AN EXPLANATION OF THE CORRELATION OF TRAITS BETWEEN PARENTS AND OFFSPRING THAT DID NOT MAKE USE OF BEAN BAG GENETICS. > > Consider an arbitrary irreversible process in a quantum multiverse > setting. Since quantum processes are reversible (unitary), > irreversibility comes about through the differentiation of the > observed "worlds". We have a process that is evolutionary by > Lewontin's 3 criteria: > > 1) Variation of succession states (through differentiation) > 2) Selection (via observer selection, or "anthropic selection") > 3) Inheritance (via continuity of the underlying quantum dynamics) IF I UNDERSTAND YOU CORRECTLY THIS WOULD BE AN EXAMPLE OF AN INHERITANCE SYSTEM IN THE DEPTHS OF QUANTUM THEORY, BUT UNLESS QUANTUM THEORY CAN PLAY A ROLE IN EXPLAINING THE CORRELATION BETWEEN PARENTS AND THEIR OFFSPRING, OR UNLESS IT CAN SERVE A MODEL THAT WOULD PLAY SUCH A ROLE, THEN i THINK i AM BACK WHERE i STARTED, AREN'T i? > > I have not attempted to analyse the case if the Many Worlds > Interpretation were not true, but being an "interpretation" it > shouldn't matter in some sense. I HAD A GO AT THE MANY WORLDS INTERPRETATION ON THE WEB AND MY MIND WAS INSTANTLY BOGGLED. SEE IF STEVE AND THE OTHERS CAN BANG IT INTO MY HEAD TOMORROW. So I'm lead to the conclusion that any > arbitrary irreversible process is "evolutionary", which by a curious > twist of fate was exactly what the term "evolution" meant pre-Darwin. THANKS, RUSSELL NICK > > Cheers > > On Tue, Jan 25, 2005 at 02:04:56PM -0700, Nicholas Thompson wrote: > > Dear Friamers, > > > > Everything that you-all are having me read undermines the notion of natural selection. But it does so by undermining genetic inheritance, the idea that because of genetic material passed from parent to offspring, offspring will differentially resemble. I would have thought that of all the premises on which natural selection was based, the premise of family resemblance was the most secure. I have two questions, Does complexity have an alternative theory of inheritance? Does complexity have an evolutionary theory in which inheritance plays not significant part? > > > > -- > *PS: A number of people ask me about the attachment to my email, which > is of type "application/pgp-signature". Don't worry, it is not a > virus. It is an electronic signature, that may be used to verify this > email came from me if you have PGP or GPG installed. Otherwise, you > may safely ignore this attachment. > > > A/Prof Russell Standish Director > High Performance Computing Support Unit, Phone 9385 6967, 8308 3119 (mobile) > UNSW SYDNEY 2052 Fax 9385 6965, 0425 253119 (") > Australia [hidden email] > Room 2075, Red Centre http://parallel.hpc.unsw.edu.au/rks > International prefix +612, Interstate prefix 02 > ---------------------------------------------------------------------------- |
On Tue, Jan 25, 2005 at 11:14:55PM -0700, Nicholas Thompson wrote:
> Thank you, Russell, for your attempt to meet me half way here. I have > discovered again and again > that, propositions which make little sense to me when I encounter them in > FRIAM, become > comprehensible over time if I can struggle with the proposition maker to > find a common language. > > So I hope you will stick with me here, although I would completely > understand if you lost patience. > > I THINK what you are saying here, translated into my terms, is that > complexity does have an > alternative to bean bag genetics for accounting for the similarity between > parents and offspring. I think any mechanism that accounts for similarities between "generations" suffices. There is presumably also some selection effects for population diversity (ie to be a little bit different from your peers), as homogenous populations are particularly vulnerable to parasitism. This would be one of the group selection effects. > If I am correct in my surmise, then it is VERY important for me to try and > figure out what is going > on here. > ... > > Consider an arbitrary irreversible process in a quantum multiverse > > setting. Since quantum processes are reversible (unitary), > > irreversibility comes about through the differentiation of the > > observed "worlds". We have a process that is evolutionary by > > Lewontin's 3 criteria: > > > > 1) Variation of succession states (through differentiation) > > 2) Selection (via observer selection, or "anthropic selection") > > 3) Inheritance (via continuity of the underlying quantum dynamics) > > IF I UNDERSTAND YOU CORRECTLY THIS WOULD BE AN EXAMPLE OF AN INHERITANCE > SYSTEM IN THE DEPTHS OF QUANTUM THEORY, BUT UNLESS QUANTUM THEORY CAN PLAY > A ROLE > IN EXPLAINING THE CORRELATION BETWEEN PARENTS AND THEIR OFFSPRING, OR > UNLESS IT > CAN SERVE A MODEL THAT WOULD PLAY SUCH A ROLE, THEN i THINK i AM BACK WHERE > i STARTED, > AREN'T i? These are all examples of information storage systems. In quantum systems, memory is typically lost very quickly. At higher levels of organisation, dynamical systems exhibit greater permanence of memory through the use of attractors. Finally genetic systems add a whole level of enzymatic repair to improve the retention of memory over millions of years. -- *PS: A number of people ask me about the attachment to my email, which is of type "application/pgp-signature". Don't worry, it is not a virus. It is an electronic signature, that may be used to verify this email came from me if you have PGP or GPG installed. Otherwise, you may safely ignore this attachment. ---------------------------------------------------------------------------- A/Prof Russell Standish Director High Performance Computing Support Unit, Phone 9385 6967, 8308 3119 (mobile) UNSW SYDNEY 2052 Fax 9385 6965, 0425 253119 (") Australia [hidden email] Room 2075, Red Centre http://parallel.hpc.unsw.edu.au/rks International prefix +612, Interstate prefix 02 ---------------------------------------------------------------------------- -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 189 bytes Desc: not available Url : /pipermail/friam_redfish.com/attachments/20050127/4ebfc8b7/attachment.bin |
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