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Some thoughts on the Modelling Relation
- From: Tim Gwinn <***>
- Date: Sun, 22 May 2005 10:26:50 -0400
I've been mulling
over part of JohnM's recent remarks, to wit:
Here, on this list, and I think elsewhere as
well, we are bugged down with 'RR arguing with terms of the reductionst
sciences' mostly using those terms. We never get to even 'think' by his
thoughts on - what I call - wholeness aspects. Model biology, model physics,
modelled with mathematical aspects, model-qualia of models, restricted views
of topically boudaried thinking is going on. Of course he spent an
overwhelming time of his efforts in such argumentation, but "Rosenism" in my
views (I hope) is "the other side". Beyond the MR (in both senses).
It seems to me that there is no a
priori limit on the modelling relation as far as the size (i.e., the number
of elements which comprise S) of the natural system is
concerned. At the one extreme, we could define an S to consist of zero
elements (zero percepts and hence zero relational properties between percepts).
In that case, the only (and largest) model of S would be what we might call the
"empty" or "null" model. In this case, the ambience is essentially
split into no system and all environment.
At the other
extreme, we might define S such that any percept, and any
possible relation between percepts, in the natural world are members
of S. (And, if desired, we could expand S to include non-sensory sources of
information other than percepts, e.g., mystical sources.) In that
case, S might consist of an indefinitely large or perhaps,
infinitely large, number of elements. In that case we have "split" the natural
world into all system and no environment. I don't know if this might satisfy
JohnM's idea of "wholeness aspects". Since we are talking about epistemology -
how we comprehend the world - I'm not sure I can imagine what it would
mean to say we comprehend something which we cannot even enumerate, such
as a countable infinity of elements, much less an uncountable infinity of
such. But we can leave that door open; in either case, I am personally not
sure how one would proceed to create models which incorporate all those elements
of S and their relations, without drawing further partitions and creating
sub-models of smaller systems, which would seem to defeat the original purpose
of defining S as all-inclusive.
Also curious
would be the case (which would inevitably occur in the previous definition
of S) where S is defined such that S contains the very modelling relation of S
under consideration.
As to going
"beyond the MR", I'm not sure what that would mean. At root, the modelling
relation occupies a central position in the Rosennean epistemological
foundation. The reason that the arguments about largest models, anayltic vs.
synthetic models, and so on carry any epistemological weight rests
precisely on the presumption that the modelling relation is in fact "the
habitat of all epistemology", to use Rosen's phrase from Essays [p.324].
Otherwise, none of the formal conclusions have any force of argument - they
become mere mathematical excursions.
So it is that some
criticisms of Rosen are based on equivocations on the status of the
modelling relation. To regard the MR as merely pragmatic, or only meaningful as
a formal oddity, or somesuch. Those kinds of equivocations fail
to appreciate the central epistemological role of the MR in the Rosennean
paradigm. Either one agrees that the modelling relation is "the habitat of all
epistemology" or one does not. In the former case, the
aforementioned equivocations are void, and in the latter case where one
disagrees with the centrality of the MR, then none of the conclusions about
largest models, analytic vs. synthetic models, simple vs. complex systems,
etc. is epistemologically meaningful. In the latter case, one is no longer
participating in the Rosennean paradigm, and it becomes prudent to ask of such a
person: if not the modelling relation, then what exactly is their
particular epistemological foundation and framework?
As I see it, the
Rosennean paradigm consists of very few pieces. Roughly, and in no particular
order: 1) the distinction between self and other, 2) the modelling relation
as the habitat of all epistemology, 3) the 2-part assertion about causal
entailment relations and their knowability, (i.e., "Natural Law"),
3) a lack of a priori conditions (e.g., computability)
on models. And, in some sense, the modelling relation and Natural Law are two
sides of the same coin. From these general foundations,
the content of the Rosennean paradigm (which I feel
is sometimes mistaken for the paradigm per se) arises as logical
consequences. So in the "Note to the Reader" in Life Itself
Rosen states:
"My arguments will be in no way
speculative. At each stage, my conclusions are forced by the nature of the
problem itself, and to where I have been led by preceding stages. This
procedure in fact leaves no room for speculation at all. In my view, theory is
the very antithesis of speculation, despite an all-pervading confusion between
the two, an inability to tell a hypothesis from a conclusion." [p.
xvi]
So, once again,
the edifice which is the content of the paradigm is built out
of logic, all resting on the foundation of the Rosennean paradigm. Remove
or alter that paradigm, and the entire edifice is no longer there. This also why
the content of the Rosennean paradigm is not a la carte, any more than theorems
of a particular system of math are a la carte; theorems arise from a particular
set of premises or axioms, and to selectively choose some theorems as true and
others as not true is to tacitly espouse some other particular set of premises
or axioms. In either case, it is not a matter of orthodoxy, it is simply a
matter of logical consistency.
Going back to
the question of going "beyond the MR", maybe we could speculate thusly: is
the modelling relation an instance of something more generic? That is, is the
modelling relation as defined valid but merely circumscribes a subset of the
entire habitat of epistemology, just as computable models are valid but
circumscribe only simple systems? This question thus really requires answering:
is Natural Law a specific instance of something more
generic?
Regards,
Tim