[quote]tedro wrote:
Aragorn wrote:
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a human life begins at conception. So far as I am aware, there is no alternate scientific explanation. So yes, a fertilized embryo is a human being. Is it a person?
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I think we all agree that murder of a person is wrong. The question is how do you define person?
The question of personhood is extremely problematic. It does nothing to develop the debate and at best simply asks questions that are unanswerable.
We can examine Mary Ann Warren’s personhood argument, but even she admits that a being need not possess all five conditions to be determined a person (consciousness, reason, motives, communication, self-awareness), and that it lends itself well to infanticide.
The most obvious problem with this argument is that there is insufficient reason to distinguish between the personhood of a newborn and that of a fetus. The list also seems to exclude the comatose from personhood, as most of these arguments do.
Many abortionists choose to then throw in the brain activity variable, which also does little to further this argument. The biggest limiting factor to measuring neural activity is our own current technology. Furthermore, this argument suggests that it is morally permissible to murder the brain dead.
The other major problem with the personhood argument is that there are many other mammals that meet all the criteria. In many cases these animals fit her definition of personhood better than young children, not just infants. Chimpanzees and dolphins are the best examples.
The personhood argument should then logically conclude that killing a dolphin is as morally wrong as killing a six-year old. Our own intuition tells us that while killing a dolphin is probably not morally permissible, it is surely not equal to killing a six-year old.
This is why the DNA argument is arbitrary. If a dolphin possesses every quality that we consider valuable in a person, sometimes moreso than a person, how can we logically deprive it of the same right to life that we give people?
Thankfully, this whole argument can be avoided. Since by definition killing results in death, we simply must ask ourselves why death is undesireable. The most logical answer is because it deprives us of all future experiences.
A future of value is our most valuable asset. No other loss would be as great as the loss of that future. Killing clearly deprives a being of this future. Therefore, killing is prima facie wrong because it deprives a being of a future like ours.
This argument need not distinguish between the future of an animal or a human. It does raise the question as to whether or not some other beings have a future of value, but it is clear that a chimpanzee or a dolphin does not have a future like ours, whereas a fetus obviously does.
Since we all agree that a fetus or embryo has all of the potential to become a full-fledged human, it can easily be concluded that the future of an embryo is a future sufficiently close to a future like ours. Since the embryo then has a future like ours, killing of the embryo must also be prima facie wrong.
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Great post until the last part. The fetus IS a full-fledged human, just in an earlier stage of development. I guess I keep having to repeat this, but if the fetus is provided with food, water, shelter and oxygen, it will develop into a later stage, just as everyone in this discussion will. We will grow to be senior citizens if provided with the same.