In my last post, I explored how
their views of humans as just physical beings undermines any hope of eternal
life, including the resurrection from the dead. Nevertheless, there are more
implications of their view, which will threaten our ability to have
relationships with God or any other person.
What is needed to have
interpersonal relationships? At the least, it seems we need to have things like
experiences, thoughts, and beliefs of one another. For instance, when Debbie (my
wife) and I were dating, we worked at communicating our wants and thoughts with
one another. We tried to learn and respect each other’s wishes and desires.
Over time, we could develop beliefs about what we each liked and what we
didn’t.
These sorts of
qualities (experiences used to observe, thoughts, interpretations, desires, intentions,
and beliefs) traditionally have been called mental
states, being qualities of minds, not brains, which instead are biological,
chemical, and physical kinds of things. Notice something special about these
states. They all seem to be of or about things. Typically, people have
called this quality intentionality.
Some even have suggested intentionality is the
hallmark of the mental (versus physical).
However, if we were
just physical beings, intentionality would have to be reducible to something
physical. Can that work? There have been some suggestions. First is one by philosopher
Michael Tye, who claims intentionality is just a matter of “causal covariation”
under optimal conditions. For him, mental states are reducible to particular
brain states, which we are describing in a certain way (e.g., using mentalistic
terms). Such terms don’t change the underlying, physical reality, but they might
help us to conceive of a brain state as being of or about something. So,
for Tye, my thought of a ball is for
that state to stand in a causal relation to that ball – the ball causes that
state by light waves bouncing off the ball, impinging on my retina, traveling
to my brain, and causing that state.
However, there are
problems with this account. We can have thoughts about things that do not
obtain; e.g., I can think of what would be the case if Hillary Clinton were
president in 2019. However, there’s nothing in reality to cause that (brain)
state. Moreover, between the ball and my thought is a potentially infinite
series of causal states. It seems I cannot traverse this series and arrive at
the originating source.
Second, Daniel
Dennett suggests that mental states and intentionality aren’t real. There are
just brains that process sensory inputs. Yet, he adopts a useful strategy, the intentional stance, to predict behavior
of things that apparently have intentionality, including frogs, chess-playing
computers, and humans. Suppose Star Trek’s
Mr. Spock is playing 3-D chess with the computer. For Dennett, there are no
real thoughts, beliefs, or desires
about what moves each could make in order to checkmate the opponent, because
natural selection is a completely blind process. Yet, we can attribute to the computer such “mental”
states to predict its moves in light of Spock’s moves, and vice versa. We make interpretations based on behaviors.
These are the best
options I know of for physicalists for intentionality. Yet, Tye’s won’t
suffice, and Dennett presupposes we can make observations and interpretations
to predict behavior. However, these very
qualities seem to require the very intentionality he denies is real.
Therefore, it
seems that on physicalism, there is no way to preserve intentionality. Yet,
that has ripple effects – without it, there are no thoughts, beliefs, or
experiences used to make observations, for these states must have intentionality
(e.g., try having a thought that isn’t about
anything). Yet, those states seem necessary for interpersonal
communication. Without them, how can an interpersonal relationship occur?
In conclusion, I
am very sympathetic with Doug Pagitt’s desire for a God who will be “down and
in” with us, versus distant. Ironically, however, the physicalism he and other
emergents have embraced will distance God and others from us, for we cannot be
in interpersonal relationships.
Going further, if
there’s no intentionality, there are no beliefs. However, having beliefs seem
necessary for knowledge. Therefore, without beliefs, there will not be any knowledge …