According to BioEdge, the Australian
bioethicist Robert Sparrow of Monash University has published a provocative proposal exploring the scientific benefits and risks of
what he calls “in vitro eugenics.” Through in vitro
eugenics, it would be possible not only to create gametes for
infertile individuals or couples, but also to breed many generations
of human beings in the Petri dish with the aim of perfecting them.
This would achieved by extracting certain stem cells from the initial
embryos in order to use them to create new gametes in order to
produce other embryos. Sparrow estimates that it might
be possible to produce up to three generations of humans annually,
meaning that up to thirty generations could be produced in a mere ten
years. He does not deal with the moral implications of this idea at
length, but he does not think that it raises any new ethical problems
that have not been dealt with before.
I am, however, inclined to disagree
with Sparrow on his last point, for it seems to me that in vitro
eugenics does indeed raise unique moral problems insofar as it runs
the risk of reducing certain generations of human beings as mere
means to an end. Unlike standard procedures like in vitro
fertilization, in which the child produced is desired by his or her
parents, it is difficult to imagine that the intermediate generations
of humans in between the initial and final, desired generation will
not be viewed as genetically inferior if in vitro eugenics
were permitted, and some might even wish to discard the
intermediate generations while in they are in Petri dish upon fulfilling their "purpose," which is at least
morally questionable. Moreover, there is something is very disturbing
about the idea of extracting stem cells from embryos to produce
gametes for fertilization, for it would make it possible for the
children of one generation to be the parents of children of the
following generation – all without any of them being born. And, if
they are born, even more problems emerge. Since we currently do not
know the psychological effects informing children that they were
created as intermediaries for a future generation, in vitro
eugenics threatens to pose serious psychological risks to the
children it produces who learn of their origin.
Overall, then, Sparrow is, I think, too
quick to conclude that no new moral problems would be raised. IF we
are to take in vitro eugenics as a serious option, questions
like these will inevitably appear and need to be answered.
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