Matter,
Consciousness, and the Fallacy of Misplaced Concreteness
David Ray Griffin
IV. Subjects,
Objects, and Enduring Individuals: from Photons to Psyches
We saw
above one of the fruits of Whitehead’s reversal of late modern
methodology: Rather than try to understand mind in terms of objective
features assumed to be universal, we enlarge our understanding of matter
by conceiving it in terms of subjective universals as well as in terms of
objective features. However, as I have indicated now and then, given a
pluralistic monism, the generalization from mind to matter can be
complemented by the reverse generalization. What can be learned from
physics that can be applied, by analogy, to our minds?
By far the
most important generalization Whitehead makes from physics is the notion,
derivable from both relativity and quantum physics, that the world studied
by physics is composed of spatial-temporal events. We have already
seen one implication he draws therefrom: the notion that each unit of
nature has a certain minimal duration, which means that there are no
actual infinitesimals and therefore no “nature at an instant.” A second
implication is that the apparently enduring things, such as electrons and
photons, are in reality temporally ordered societies of events, in
which events with essentially the same form follow on one another rapidly
(sometimes a billion or more per second): “The real actual things that
endure are all societies. They are not actual occasions” (AI,
204). Although this notion can be derived from reflection on one’s own
experience—both Buddhists and William James, with his notion of “drops of
perception,” seem to have done so—Whitehead evidently derived it primarily
from twentieth-century physics, then generalized it to our own stream of
experience, concluding that the apparently continuous stream actually
comes in drops, or occasions, of experience. The generalization of this
notion lies at the root of that aspect of his philosophy that is, along
with his inversion of the sensationist doctrine of perception, his most
original contribution to our understanding of both mind and matter and
their interconnection.
The idea that our own
experience is in reality a series of discrete drops of experience provides
the basis for answering the primary philosophical question about
causality: How are efficient and final causation (in the sense of
self-determination in terms of an ideal end or finis) related? “One
task of a sound metaphysics,” Whitehead comments, “is to exhibit final and
efficient causes in their proper relation to each other” (PR, 84).
A solution has been impossible as long as the ultimate units—the
“substances” in the sense of the most fully actual entities—were
assumed to be enduring individuals. As such,
they could seem to be capable of only one of the two kinds of
causation—material bodies could exert and be affected only by efficient
causation, whereas minds, as illustrated most clearly by Leibniz’s
windowless monads, could exemplify only final causation—or else efficient
and final causation could, mysteriously enough, run parallel to each
other. There was no way to conceptualize what our experience seems to
suggest, that efficient causation conditions final causation, which then
becomes the basis for another act of efficient causation. For example, my
present experience is conditioned by causation both from my body and from
past states of my own mind. These efficient causes, however, do not
totally determine my present experience: I still can, and in fact must,
decide precisely how to respond to those conditioning causes—those bodily
cravings, those promises made, those plans, those sensory percepts. When
I do make my decisions, they seem to exert causal efficacy on my bodily
states and my own subsequent experiences, and so on. The idea that our
stream of experience is really composed of momentary occasions
of experience, each of which begins with physical experience and ends with
a mental reaction thereto, explains how efficient and final causation can
be interwoven.
Whitehead
provides a conceptuality for this interweaving of efficient and final
causation by retrofitting Leibnizian monads with windows. Each such monad
begins as an open window to the past world, into which aspects of previous
events stream. This is the physical side of the monad, its physical
prehensions. This is the efficient causation of the past world on it.
Then it has its mental side, in which it responds not just to actuality
but also to ideality, drawing possibilities out of what was received and
then deciding just how to respond thereto. This is the monad’s
self-determination, its exercise of final causation. When this decision
has been made, the subjective phase of that monad is completed: Its
subjectivity perishes. But it does not perish. The end of its
existence as a subject of experience means the beginning of its existence
as a cause on, and thereby an object in, the experience of subsequent
subjects. This is why it is not simply located in one place. It exerts
efficient causation on subsequent subjects, hurling aspects of itself into
their open windows (AI, 177). In this way Whitehead’s
monads are subject to and exert efficient causation and thereby have the
physicality that Leibniz’s monads did not (PR, 19). This is made
possible by making the monads momentary events, rather than enduring
substances. With that switch, of course, it is better to give up the term
“monads,” precisely because of its association with enduring units that
cannot really prehend other actual things.
Enduring individuals
had traditionally been conceived as numerically self-identical substances
enduring through time, for which relations to other things were
“metaphysical nuisances,” being at best construed as “accidents” (PR,
79, 137). Enduring individuals are reconceived by Whitehead
to be temporally ordered societies of
momentary occasions of experience, in which there is a perpetual
oscillation between subjectivity and objectivity, final causation and
efficient causation. Each occasion’s “activity in self -formation
passes into its activity of other -formation” (AI, 193).
Having
generalized the idea of momentary events from physics to the psyche,
Whitehead can then generalize this notion of the perpetual oscillation
between subjectivity and objectivity to all enduring individuals,
including those of physics. Each event is a subject for itself before it
is an object for others. All things other than our own experience
appear to be mere objects, rather than subjects, because by the time
they can be prehended they are objects; their subjectivity has
perished. This is the very precondition for their being objects for our
perception, or for their exerting any efficient causation whatsoever.
This is one of the several interrelated explanations as to why, if the
universe is really composed exhaustively of active subjects, it
seems to be composed primarily of passive objects. It is not
composed exhaustively of things that are simply subjects (as was
the Leibnizian universe); it is composed of subjects-that-become-objects.
So, we are right to think that everything that we perceive is an
object—in the ontological as well as the epistemic sense of the term. We
are only wrong to think of them as mere objects. Some of them, the
true individuals (as distinct from the aggregational societies), are
objects-that-were-first-subjects. They are, accordingly, the kinds of
objects that can pass on values to us, because in their phase of
subjectivity they had themselves experienced values. Furthermore, they
are usually objects that are parts of enduring individuals with subjects
who are now contemporaneous with us, subjects with their own intrinsic
value.
It is through this idea
that Whitehead’s philosophy provides the basis for what Strawson calls a
“qualitative-character-of-experience physics” through which the
“theoretical heterogeneity” of the predicates of physics and those of
experience can be overcome (MR, 88f.) The physical predicates
refer to actualities (and aggregational clusters thereof) in their
objective or superjective mode of existence, in which they exist for
others, and in which their esse is percipi. The
experiential predicates apply to actualities in their subjective mode of
existence, in which their esse is percepere. This gives us
theoretical homogeneity for all individuals, from photons to cells to
human beings. It does not do this as idealists have traditionally tried,
by making the physical predicates less real than the experiential. And it
does not do it as materialists have tried, by making the experiential
predicates less real than the physical. It does so by saying that every
actual entity has two modes of existence, a subjective mode, in which it
has none but experiential properties, and an objective or superjective
mode, in which it has none but objective properties (which can be equated
with publicly observable properties if the notion of “public observability”
is not limited to properties observable through
sensory perception). Because both modes of existence belong
equally to the essence of what it is to be an actual entity, both types of
predicates are equally necessary to describe it.
This
position involves a modified acceptance of Strawson’s sense that an
integrated position would need to say that experiential phenomena “are
just one more variety of physical phenomenon,” so that, for example, “the
experiential is as much of a physical phenomenon as electric charge” (MR,
41, 58). Indeed, Strawson himself suggests that panpsychism, at least of
one type, says that “being experience-involving is a fundamental property
of existing things on a par with extension, rest mass, or electric charge”
(MR, 77). My Whiteheadian panexperientialism does say that
experiential features belong to all actual entities as fully as do those
objective features that are usually called “physical.” In this sense they
are “on a par” with them. But it can be misleading to suggest that
experiential phenomena are ‘just one more variety” of physical phenomena,
as this could suggest that they belong to the actualities in the same
mode of existence. Trying to think of experiential qualities as “on a
par” with properties such as mass, charge, and spatial extension in
this sense, however, is precisely what is impossible. To make the
idea of their equal reality intelligible, we must say that the
experiential predicates apply only to the actual entity in its subjective
mode of existence, when it exists in and for itself, whereas the other
predicates apply to it only in its objective or superjective mode of
existence, when it exists for others (as an efficient cause on them). One
comes closer to this idea by saying (as do panpsychists in the Spinozistic
tradition) that the experiential and the objective properties are
identical, in the sense that the former simply represent the inside
(first-person) view of the latter. The idea that the experiential and the
objective features of an actual entity exist simultaneously,
however, is problematic, perhaps impossible to conceive consistently. It
would, for example, make the relation between final causation
(self-determination) and efficient causation unintelligible: How could an
actual entity already be exerting efficient causation on others while it
was still determining exactly what it is to be? (And, indeed, Spinozistic
panpsychists are generally determinists, as they cannot attribute any
degree of self-determining power to any individuals.) The Whiteheadian
view espoused here, in any case, is that the objective mode of an actual
entity, with its objective properties, exists only after the subjective
mode has come to completion.
This view includes that
idea, already intimated, that the type of causality we experience in
relation to our own past experiences and our bodily members can also be
generalized to other things. The way in which our present experience
prehends immediately previous occasions of our own experience,
incorporating their basic character and continuing their projects and
subjective forms, can be used to understand the continuity of enduring
individuals in the worlds of biology and
physics. At the same time, my present experience is not simply a
continuation of my past experiences, with their emotions and purposes, but
is constantly broken into by multiple routes of causation from my bodily
members, some of which carry causal influence from things beyond the body.
This fact can be generalized to understand many-termed causal relations
in nature in general, the relations that generate space as well as time (AI,
184–89, 221; MT, 160–63).
Furthermore, on the principle that our own experience is part of nature as
much as anything else, we can generalize from our own distinctively mental
experience, in which we grasp possibilities as such with appetition, to
the notion that all unitary events have a mental dimension to their
experience, hence at least some slight degree of final causation.
Whitehead’s justification for this inference is again his genuine
nondualism. Materialists provide reductionistic explanations of the later
products of evolution in terms of the earlier ones. But this is a
one-sided application of the implications of nondualism. In a discussion
limited to living things (he elsewhere extends the point to the inorganic
realm), Whitehead asks: “But why construe the later forms by analogy to
the earlier forms? Why not reverse the process? It would seem to be more
sensible, more truly empirical, to allow each living species to make its
own contribution to the demonstration of factors inherent in living
things” (FOR, 15). Besides being more sensible and empirical,
understanding the earlier in terms of the later (as well as vice versa) is
also pragmatic: It helps us avoid an essential dualism somewhere in the
process, whether explicit or camouflaged.
One final dimension of
Whitehead’s overcoming of dualism between the human mind and the enduring
individuals comprising even the most elementary levels of nature needs to
be brought out explicitly. This is, in fact, one of the basic dualisms
with which we began—that between minds as temporal but nonspatial and
physical things as spatial but not essentially temporal. Whitehead
overcomes the vicious dualism between these two types of actual things by
putting a duality within each actual entity. I mentioned earlier that he
uses the term “actual occasion” to connote the fact that all actual
entities are both spatially and temporally extended. But he explains that
general statement more precisely. The distinction between the actualities
with and those without duration can be understood as the distinction
between the subjective and objective modes of existence of each actual
occasion. Qua subject, an actual occasion enjoys duration; qua object for
later subjects, it is purely spatial, with no duration left. We know
ourselves from within, hence as having duration, and other things from
without, hence as devoid of duration. To translate this epistemic duality
into an ontological dualism between two different kinds of
actualities—those that are always subjects and those that are always
objects—is to commit a category mistake (as Kant recognized in the passage
discussed in the previous chapter): The mistake
is to contrast things as known from within with things as known from
without and to conclude from this epistemic contrast that they are
ontologically disparate.
The other
side of the traditional dualism was that between physicality as spatial
and mentality as nonspatial. Whitehead turns this dualism into a duality
within each actual occasion as subject: “Each actuality is essentially
bipolar, physical and mental, and the physical inheritance is essentially
accompanied by a conceptual reaction. . . . So though mentality is
non-spatial, mentality is always a reaction from, and integration with,
physical experience which is spatial” (PR, 108). (The physical
pole is spatial in that it is composed of prehensions of things in the
spatiotemporal world; the mental pole is not spatial because its
distinctive objects belong to the realm of possibility, not actuality.
Whitehead likewise says that whereas the physical pole is “in time,” the
mental pole is “out of time” [PR, 248], because its objects are
eternal. These points refer, however, to the objects of the mental
pole. The prehensions of those objects are fully parts of the
spatiotemporal occasion.) Accordingly, although Whitehead agrees that the
physical is spatial and the mental nonspatial, he avoids a vicious dualism
between two different types of actual things. That “vicious dualism,” he
says, results from “mistaking an abstraction for a final concrete fact” (AI,
190). His doctrine of momentary occasions of experience, each of which is
both subject and object and thereby both with and without duration, and
each of which as subject is both physical and mental and thereby both
spatial and nonspatial, is his way of overcoming the fallacy of misplaced
concreteness and its resuiting vicious dualism between mind and matter,
soul and body.
The next
chapter builds on this understanding of enduring individuals to show how
compound individuals with varying degrees of freedom can arise. This
discussion of compound individuals also deals with the major question
about panexperien-tialism and consciousness raised in chapter 7 but not
addressed in the present chapter, which Seager calls “the combination
problem”: How can a unified experience emerge out of a multiplicity of
neurons, even assuming that each of them has some experience of its own?
In other words, can White-headian panexperientialism provide an
intelligible understanding of a whole that is more than the sum of its
parts and, in particular, a whole with the kind of unity we know our own
conscious experience to have?
Posted August 31,
2007
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