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- Path: sparky!uunet!uunet.ca!torag!blunile
- From: dtinker@blunile.guild.org (David O. Tinker)
- Subject: Re: Emergence again...
- Newsgroups: talk.origins
- Date: 21 Nov 92 02:12:35 GMT
- Distribution: world
- Message-ID: <5594325@blunile.guild.org>
- Organization: Blue Nile Software -- Markham Ont. Canada
- Sender: news@blunile.guild.org (GNEWS Version 2.0 news poster.)
- Lines: 82
-
- rowe@pender.ee.upenn.edu (Mickey Rowe) writes:
- >
- > Before I read David Tinker's contribution, I almost stepped into the
- > "emergent" quagmire. I then debated for a while whether or not I
- > wanted to respond to David's message. I just decided against it when
- > lo and behold I came across this:
- >
- > In article <ZHLDuB3w165w@kalki33> kalki33!system@lakes.trenton.sc.us writes:
- >
- > >The game "life" is not life, that is why you put quotes around "living"
- > >and "dead". Actual life displays properties which are not reducible to
- > >the interactions of elementary physical quantities. The game of "life"
- > >is entirely reducible to its rules, boundary, and initial conditions.
- >
- > David (i.e. dtinker@gpu.utcs.utoronto.ca (David O. Tinker)) previously
- > wrote in <BxK6o0.Dr9@gpu.utcs.utoronto.ca>:
- >
- > }First, I do not think there is a satisfactory closed definition of the term
- > }"emergent", nor is it universally used by the research school most concerned
- > }with such properties, the 'Artificial Life' community. Nevertheless I
- > }believe the concept is so well accepted in this community that the term can
- > }be used casually with the assurance that it is understood.
- >
- > The rest of his post was equally reasonable, which is why I decided
- > not to respond. My gut feeling, though, was that although you might
-
- Wow, thanks !
-
- > be able to use the word casually in the 'Artificial Life' community,
- > you can't in general do so. I think I'd recommend strongly *against*
- > using the word in this forum unless you spell out what you mean by it
- > each time the subject comes up. The reason for my feeling is that for
- > many people, emergence still means something like this:
- >
- > >Actual life displays properties which are not reducible to the
- > >interactions of elementary physical quantities.
-
- As you know, I stated quite the contrary view in the posting you reference.
- Absolutely NO ONE doing serious artificial life research would defend
- views such as those enunciated by Kalki. Artificial Life researchers
- have demonstrated that properties of "living" systems can be duplicated
- in artificial systems that _are_ reducible to elementary interactions.
- This includes emergent properties like social behaviour, learning ...
- the point is, there is no _need_ to postulate anything special about
- living systems to explain such behaviour.
-
- >
- > I think the vast majority of scientists now think that this is wrong,
- > and so there shouldn't be a word for Kalki's claimed properties any
- > more than there should be a word for flying purple people eaters. (As
- > an aside, Kalki what evidence do you have to support your assertion?
- > If you say "because people haven't been able to perform the reduction
- > yet", I'll be disappointed. Not surprised, but disappointed.)
- >
- > Wherever the potential for this confusion remains, I'm against using
- > the word. Anybody else?
-
- I (sort of) agree with you, but then the word "evolution" is freely misused
- in this forum as well, so is "entropy". When someone misuses a technical
- term, and especially when such misuse has pernicious effects, we should point
- them toward the proper meaning. The trouble with "emergent effects" is that
- there is not yet a scientifically valid definition with with wide acceptance.
- The definition I modestly offered was intended for discussion purposes.
-
- >
- > >Kalki Dasa
- >
- > }: Prof. David O. Tinker INTERNET: dtinker@blunile.guild.org :
- >
- > Mickey Rowe (rowe@pender.ee.upenn.edu)
-
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