John Rawls once wrote that he always took for granted that
the people that he was reading were smarter than him. If not, then why on earth
was he reading them in the first place.
I mention that because I read Arthur Caplan, the head of
medical ethics at NYU, precisely because he is a smart man. I often learn
something when I read his work though I disagree with him on important issues. His newest offering in Forbes criticizing Senator Marco
Rubio’s arguments about when human life begins during a television interview
with CNN TV personality Chris Cuomo is a disappointing exception to that rule.
He starts out with this:
“Amazingly
despite indifference to science regarding other matters like evolution and
climate change, they invoke science on behalf of their advocacy of what might
best be called ‘conceptionalism.”
Who is “they?”
This is an article addressing the specific arguments made by Senator Rubio.
When you begin by shifting gears into an act of poisoning the well while
dragging in the always easy to disparage “they” you are setting the bar low
from the outset.
We will have to
wait another two paragraphs to actually address the arguments made by Senator
Rubio because Caplan has a little more pre-argument work to do. Before we
discuss when the life of an individual human organism begins it is important
for you to know that Senator Rubio and the rest of THEM want to force mentally
ill 12 year old women raped by their predatory fathers to have babies. He also
has a list of other consequences that arise should any reader accept that
Senator Rubio’s argument is scientifically correct that run the gamut of fear
mongering (the end of fertility treatments!) to ongoing issues of debate (the
end of embryonic stem cell research) to quite honestly puzzling as to why it is
problematic (if you murder a pregnant woman you will be culpable for two
murders). In spite of the fact that all of these issues have been openly argued
and discussed for years, Dr. Caplan hints that political defenders of an
inclusive view of human value either have not thought about this or are
purposely not mentioning it.
Now we finally get to his position. "Science supports no such view that life begins at
conception." His arguments in support of this position are (1) that conception
is a fuzzy concept and hard to nail down as a distinct event, (2) the majority
of conception events do not produce a viable pregnancy, (3) twinning and
recombination raise troubling questions about the nature of early life, (4) and
a number of post implantation pregnancies spontaneously miscarry.
His first real
argument is that conception is unwise to use as a point of demarcation for the
beginning of human life because the boundaries of the event are fuzzy according
to Dr. Caplan. He asks:
"Is conception
when a sperm reaches an egg, when it penetrates the shell of an egg, when
genetic recombination begins, when a new genome is formed, or, when a
functioning new genome is formed?"
This is an interesting
question and one that Francis Beckwith addressed in
Defending Life. In responding
to what he considers an important objection on this grounds offered by David
Boonin he says:
"It seems to me
that Boonin commits the fallacy of the beard: just because I cannot tell you
when stubble ends and a beard begins does not mean that I cannot distinguish
bearded faces from clean-shaven ones. After all, abortion-choice supporters
typically pick out what they consider value-making properties - for example,
rationality, having a self-concept, sentience, or organized cortical brain
activity (as in the case of Boonin) - that they justify concluding that a being
lacking one or all of them does not have a right to life. But it is nearly
impossible to pick out at what precise point in a being’s existence it acquires
the correct trait, for example, when it becomes rational enough or has a
sufficient amount of organized cortical brain activity to warrant a right to
life. But it’s doubtful whether the abortion-choice advocate would abandon her
position on those grounds."
These two things
can simultaneously be true; that Caplan is correct in the difficult nature of
breaking down exactly when conception begins and that once the fertilization
process is finished we have a whole, living, and distinct new human organism. This
first argument does nothing to defeat the position that nascent human life, even
as a zygote, is a full member of the human family.
Second, he argues
that the majority of conception events do not end in a human organism. His
evidence of this is a
study published in the journal
Science that seems to show
that 75% of conceptions result in chromosomal abnormalities of such an extreme
nature that fewer than 30% of conception events lead to viable human organisms
and pregnancy. This is interesting information, but it puzzles me as to why Dr.
Caplan sees it as a defeater for an inclusive view of human value.
I acknowledge
that this raises interesting questions about what we know about human reproduction. Is
this new life form a human organism that is suffering from such profound
genetic abnormalities that his life ends very early or is it so profoundly chromosomally disordered that it is not properly understood as an organism at all? Does it
have more in common with a hydatidiform mole?
If the latter,
then this is an interesting objection that has been addressed by Dr. Maureen
Condic. (See
here for more) As she points out, though these molar pregnancies
have human DNA they are never whole, living, and distinct human organisms. They
are not healthy human lives that degrade but begin as something entirely different and
grow in accordance with what it is.
We have an issue in discerning what they are prior to particular levels
of development, but our lack of ability to distinguish what they are doesn’t
change the nature of the life. If Dr. Caplan’s more than 70% of conception
events that fail to produce whole human life fall into this category, then it
is an interesting fact that in no way impacts the nature of those whole,
living, and distinct human organisms that are present after the minority
of conception events.
His third
argument relies on the objection from twinning and recombination. Dr Caplan
writes:
“Just to
reinforce the point that conception is a bad place to begin when it comes to
legislating personhood sometimes, conception creates more than one life, twins
or triplets, but then one of those lives is absorbed into the body of
another–fetal resorption.
Not only is it
unlikely that a life begins at conception, even if life begins it really is not
clear how many lives start at the moment of conception until later in
pregnancy.”
Robert George and
Christopher Tollefsen address this objection in their book
Embryo. They write:
"This conceptual
question of whether an entity of that is genuinely one could be spilt so as to
become two has a ready answer. Consider the parallel case of the division of
the flatworm. Parts of a flatworm have the potential to become a whole flatworm
when isolated from the present whole of which they are a part. Yet no one would
suggest that prior to the division of a flatworm to promote two whole flatworms,
the original flatworm was not a unitary individual.
Likewise, at the
early stages of human embryonic development, before specialization by the cells
has progressed very far, the cells or groups of cells can become whole oranisms
if they are divided and have an appropriate environment after the division. But
that fact does not in the least indicate that prior to such an extrinsic
division the embryo is other than a unitary, self-integrating, actively
developing human organism."
If Dr. Caplan’s
argument undermines the humanity of early human life then it scientifically
undermines our ability to categorize any individual planarian as an independent
organism. That would be a weird leap to make without having to do so. This capacity is certainly odd, but it doesn’t do the work necessary
to support Dr. Caplan’s conclusion.
His final
argument is that since 10% to 25% of implanted embryos ultimately miscarry
then… well he doesn’t really flesh this one out. He drops it as an
afterthought. He is using post implantation events to undermine the humanity of
the unborn at the conception event. Why stop there? Why not drag in infant
mortality rates? The mortality rate of humanity is 100% on a long enough
timeline. Why not mention that? How any of these facts about the death of
human life impact the question of when a distinct human organism begins to
exist is beyond me, but we will just have to imagine that since we aren’t
actually offered any argument.
Dr. Caplan fails
to make a persuasive case for his position. That isn’t so bad in and of itself,
but he fails to do so while dismissing those who disagree with him as perpetuating
a canard into the silence left by reputable scientist too intellectually
cautious to declare when human life begins. This is uncharitable. It is also
indefensible to claim such silence exists. I will include a handful of quotes
to counter his claim in a postscript below on that point, but given the readily
available substantive responses offered to his arguments from respected
scholars his cavalier attitude on this matter is unearned.
Postscript
1. "[The zygote], formed by the union of an oocyte and a
sperm, is the beginning of a new human being."
2. "Although
life is a continuous process, fertilization (which, incidentally, is not a
'moment') is a critical landmark because, under ordinary circumstances, a new
genetically distinct human organism is formed when the chromosomes of the male
and female pronuclei blend in the oocyte."
3. "Development
begins with fertilization, the process by which the male gamete, the sperm, and
the femal gamete, the oocyte, unite to give rise to a zygote."
(Items 3 & 4 are admittedly older that 1-3, but I offer them to counter evidence of scientific consensus argued by Dr. Caplan from the same year in quoting the NAS)
4.“So,
therefore, it is scientifically correct to say that an individual human life
begins at conception, when egg and sperm join to form the zygote, and this
developing human always is a member of our species in all stages of its life.”
Dr. Micheline Matthews-Roth, Associate Professor of Medicine, Harvard
Medical School, The Human Life Bill S. 158 (US Senate Judiciary committee
1981)
5. “I think
we can now say that the question of the beginning of life – when life begins –
is no longer a question for the theological or philosophical dispute. It is an
established scientific fact. Theologians and philosophers may go on to debate
the meaning of life, but it is an established fact that all life, including
human life, begins at the moment of conception... I have never ever seen in my
scientific reading, long before I became concerned with issues of life of this nature, that
anyone has ever argued that life did not begin at the moment of conception and that it was a
human conception if it resulted from the fertilization of the human
egg by a human sperm. As far as I know, these have never been argued against.”
The late
Dr. Hymie Gordon of the
Mayo Clinic in the same Judiciary Committee