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Re: meanings of model



Howard,
 
I find this an interesting discussion. I have a few comments on your comments, below:
 
HP: I disagree with your blanket opinion of science. I know many scientists. Most of them are well-aware of the modeling condition. They consciously do not limit their thinking to any paradigm. They use every conceptual trick or strategy to escape whatever abstraction is popular because they know that is how novel discoveries are made.
In my opinion, [Judith's statement] is not a fair picture of how the scientists that I know do their work. You may have individual scientists in mind, and I might agree about these individuals, but not scientists generally.
 
I was speaking of "science" generally-- it's much harder to generalize about "scientists" than to generalize about science, because scientists are more than just their "science" aspect. I am of the belief that human beings are, in general, impossible to generalize. (Yes, I'm teasing you.) Obviously, my father was a scientist and he was not trying to make living organisms fit into the model of a machine. So I believe there's hope for science, but not if it remains an inbred, closed orthodoxy built on machine-metaphor-based physics.
HP: Rosen's ideas are known to some of them, but as yet it is not clear how these ideas can apply to empirical models.
 
How is it not clear?
 
It seems to me that Biosemiotics is a step in the right direction. Modeling of relationships within organization would be a consequence of what they're trying to learn. However, what needs to happen is that the paradigm of "science" itself must expand because physics still states that all relations are figments of human imagination. In contrast, Rosennean Complexity states, among other things, that human imagination is a consequence of relations and science is a creation of human imagination.
 
Matter and causality, as we experience them, could not exist without the interaction of time and space. The interaction of time and space is already a complex system, whose organization is the basis for most of the "Laws of Nature". Therefore, any matter-based science trying to learn about the Laws of Nature is already involving organizational matters, yet pretending the word "organizational" doesn't exist.
 
HP: We agree, as do many biologists, at least since Jakob von Uexkull (Theoretical Biology, 1920) who recognized that what any organism can measure or encode determines what that organism's model of the world (Umwelt) will look like. We are no exception. The field of biosemiotics is based on this recognition. Most of the money and time resources in both physics and biology are spent trying to extend by instrumentation what we can observe or encode about nature beyond our natural senses.
 
My concern about Biosemiotics and about bio-informatics and about various other types of "complexity" is all due to the fact that none of these "newer" disciplines question the underlying assumptions in Physics/Science... They ignore them. So those assumptions are allowed to stand-- and I think that's both foolish and dangerous. Medical research is a biological pursuit and yet is modeled on Physics. Ecology is also modeled on Physics. Physics sets the standard of what is "scientific", even in Biology, therefore the assumptions of physics (that every system is a machine, is fractionable, and can be learned about reductionistically, etc) must be questioned. The alternative is an assumption that the universe is relational and that relational constraints determine both matter and causality.
 
Judith
 

----- Original Message -----
To: ***
Sent: Monday, December 13, 2004 8:02 PM
Subject: Re: [ROSEN] meanings of model

At 08:27 AM 12/13/04 -0500, Judith wrote:
Howard, could you enlarge on this statement, please:
 
HP: I am a Constructivist, so I would phrase your question conversely: when do the limits of physical laws impinge on the capacity of formal symbols to
have meaning? That is, when do the purely syntactic expressions of formal
mathematics go beyond what can be measured or encoded by nature?
[snip]
Judith: My main area of concern is your phrasing; "the limits of physical laws". Do you mean physics-based laws? Or do you mean what my father referred to as "Natural Law" (meaning whatever consistencies are involved in generating/constraining the universe, whether we know about these consistencies or not)?

HP: In addition my belief that the "strategy of constructivism" is the safest for model-building, I am, along with Rosen, a metaphysical realist. We both believe that the universe follows natural or physical laws that we try to discover by any means we can imagine. If we haven't discovered the exact laws or if we at present missed some laws, we still believe there are real laws running the universe that would exist whether we exist or not.
 
Judith: Another area of concern is the phrasing; "what can be measured or encoded by nature". I doubt that even my father would say he could tell you the limits of what nature can or cannot do. He could only generalize and say that natural systems cannot behave in ways inconsistent with Natural Law.

HP: We agree

Judith: Science in general is way behind; a small subset of all there is.

HP: We agree

Judith: Science has deliberately limited itself by adopting the machine metaphor which is the same as using a machine to model nature and forgetting that it's a model.

HP: I disagree with your blanket opinion of science. I know many scientists. Most of them are well-aware of the modeling condition. They consciously do not limit their thinking to any paradigm. They use every conceptual trick or strategy to escape whatever abstraction is popular because they know that is how novel discoveries are made. Rosen's ideas are known to some of them, but as yet it is not clear how these ideas can apply to empirical models.

Judith: So now they are trying to make nature into a system that "realizes" their model and only the evidence which seems to fit is allowed to be called "scientific".

HP: In my opinion, that is not a fair picture of how the scientists that I know do their work. You may have individual scientists in mind, and I might agree about these individuals, but not scientists generally.

Judith: On the other hand, just because WE are natural systems which measure and encode, that doesn't mean we do it well or accurately in any terms but our own. In other words, our choices of what to measure and how to measure (in terms of what and how other natural systems are measuring) may not reflect much useful reality according to those natural systems. Their modes of measurement and encoding may be beyond our ability to perceive, much less quantify or qualify. So how can we say what can be measured or encoded by nature? To do so would require that we measure their ability!

HP: We agree, as do many biologists, at least since Jakob von Uexkull (Theoretical Biology, 1920) who recognized that what any organism can measure or encode determines what that organism's model of the world (Umwelt) will look like. We are no exception. The field of biosemiotics is based on this recognition. Most of the money and time resources in both physics and biology are spent trying to extend by instrumentation what we can observe or encode about nature beyond our natural senses.

Howard