One of my favorite conversations in the
Roald Dahl book Charlie and the Chocolate Factory didn't make it into
either movie. Willy Wonka brings his guests to a room with what he
describes as square candies that look round. All of his guests correct
him that the candies are actually square candies that look perfectly
square from their perspective, but Wonka continues to insist they
look round. Finally, determined to prove his point, he opens the door
to the room and, as he does so, all the square candies on the table
look round to see what is happening. They are square candies that
look round.
I love that scene, and it highlights a
problem that often arises in important conversations, especially
centering on issues in which we invest ourselves emotionally. We mean
different things when saying the same words. These definition
problems corrupt conversations to such an extent that the only way to
move forward is to back up and clear up the confusion.
In the last two years I know of at
least three different pro-choice advocates in high profile exchanges
that claimed that it is common knowledge that life doesn't begin at
fertilization. All people educated in biology, so they say,
understand that life is a continuum and there is no point at which we
can definitively say “life began there.” The parents were alive,
the gametes were alive, the zygote is alive, the embryo is alive, and
on and on. How can pro-life advocates claim life began at
fertilization when that event is surrounded by life?
Others routinely object to the claim
that life begins at fertilization because it is silly to attribute to
a single celled organism or undifferentiated cellular mass the same
status as a reasoning, feeling human being. Human life can't begin at
fertilization unless you think that zygotes and embryos are like you
and me.
If all the parties involved are arguing
in an honest spirit, which does happen, then we are very much like
Willy Wonka and his guests arguing about the square candies that look
round. What do we mean by looks round? What do we mean when we say
life begins? We need to both ASK clarifying questions and OFFER clear
definitions. Instead, we often plow ahead getting more and more
frustrated that otherwise reasonable and moral people seem to be so
blind to the strength of our positions.
The claim that life begins at
fertilization is a scientific claim supported by embryology. It isn't
wrong to say that life is a continuum from a macro perspective, but
that fact doesn't mean we can't recognize individual organisms. Our
claim is that the life of an individual human organism begins at
fertilization, and this is nearly universally acknowledged. Dr.
Ronan O' Rahilly and Dr. Fabiola Muller address this in Human
Embryology and Teratology,
3rd ed.(2001):
“Although
life is a continuous process, fertilization 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”
So
we can concede that life begets life begets life without getting so
confused that we can no longer see individuals. After all, Ryan
Gosling and I are both living human beings that are products of life
within a continuum of life, but few people would have trouble
distinguishing us as individuals. In the same way, doctors like
Malcolm Potts may argue that life exists in a continuum with no clear
beginning, but he apparently had little trouble differentiating the
mother from her unborn child when performing abortions or when
affirming the autonomy rights of the former over the right to life of
the latter.
The
people arguing that life can't begin at fertilization because we
can't equate zygotes and adults are making a different kind of error.
It is a simple category mistake. That human life exists and begins at
fertilization is a matter of scientific observation. Anyone with a
passing knowledge of genetics can affirm that adult Jay actually has
quite a lot in common with zygote Jay. The organism that I am now
began at that moment. The DNA that determined so much about the adult
that I am was in place from the beginning and central to the
self-coordinated development that moved me through all the subsequent
stages of growth. Who I am today is a product of who I was then and
the sum total of environmental influences I have encountered.
But
that isn't what they usually mean. They are claiming that embryonic
life lacks some deeper meaning or value. Since it is obvious to
everyone, so they say, that all the aspects that make life valuable
are absent in nascent human life then it is clear that valuable human
life can't begin at fertilization.
This
is a philosophical claim. Our claim is an appeal to science. We need
to be equipped to help them see the difference. When the life of an
individual human organism begins is a question of science. If they
wish to claim that morally meaningful human life is differentiated
from biological human life then they need to be prepared to offer
philosophical arguments to that point. We also bear the
responsibility of defending our philosophical position that human
life has value by virtue of what it is, not what it can do or offer
society. All of these arguments are philosophical and are of a
different category than the question of when life begins.
Sometimes
we just mean different things when saying that same thing. It is our
job to clear these points up with clear definitions and not be swept
up by our passions into an argument corrupted from the outset by
misunderstanding. That way, we are not like Willy Wonka trying to
convince a group of people that candies that clearly look like
squares look round.