>>16695849>that would seem to be a composition fallacy; just because the whole organism is a human doesn't mean each part is also human.That would be correct, and it also doesn't mean a fetus is a human.
> but, a fertilized egg will because it is a complete organism.The keyword here is "will". This only speaks about potential, and we don't grant rights based on potential. We don't let kids drink alcohol because they have the potential to grown into adults, and we don't let first year med students do procedures usupervised because they have the potential to become doctors.
>in fact, by any biological metric, a fertilized egg is a human in its earliest development phase, is it not? how else would you classify this organism?n biology, an organism is typically defined as a living system capable of independent metabolism. A fetus does not satisfy that definition, but again, this is not relevant to personhood.
>ok, if personhood is subjective, then so are rights, aren't they?Yes, this is pretty evident given they vary from culture to culture. You can claim rights are innate and not granted, but that doesn't change that what these innate rights are and how they apply remains subjective.
> i mean, are there humans that aren't persons?Yes, the most clear cut example would be permanent vegetative patients, for example those with only their brain stem intact. They are technically alive and retain biological functions and involuntary reflexes that allow them to remain alive, such as breathing, heartbeat and even sleep cycles, but there is no structures that would allow for concious thought. The person is effectively gone. And, in most countries, law allows either withdrawal of life support or euthanasia in those cases.
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