FutureIncoming said:
3. "We almost have the technology to cut someone's head off and keep both pieces alive for years. If this happens to some normal adult human person, and the parts are widely separated, then do you think that the 'person' will thereafter be associated with the head, because of the very capable brain, or with the mere animal body? --and based on the answer to that, should brain-dead humans on life-support be called persons, and why should any humans having no more than animal-class brains be called persons?"
talloulou said:
Since this technology and all that it entails is futuristic it's rather impossible to fathom now what might happen in such situations.
Nonsense. Heads separated from bodies, and interactions that followed (not always as described in the quote from #296), have existed in science fiction scenarios since "Frankenstein". It is widely accepted that the "person" is associated with the head -- and more precisely, the brain (see original Star Trek episode,
"The Gamesters of Triskelion"). About the only story I know, where the body seems to have some part of the overall personality, is a children's fantasy, not science fiction,
"Ozma of Oz" (search for "There is no ruler", and have fun reading what follows it).
talloulou said:
I assume a headless body is much like a car without an engine unless some computerized head replaces the organic one.
Just to keep the body alive, the task is much simpler than that. Besides obvious sealing issues, the carotid artery needs to be connected to the jugular vein. The throat needs to be "intubed" to ensure easy air flow (filtered air, of course), with some sort of valve to keep food and water from going down the wrong pipe. And nervous-system signals need to be transmitted to heart and lungs, and probably some other organs, like the stomach.
Here's a slightly less drastic thing that has actually happened.
talloulou said:
I can't imagine why we'd keep a headless person alive unless we were keeping the parts warm for use by someone else. If the headless body is given some sort of software that operates in an artificial intellegence manner than I suppose it would be conceivable to fight for the "personhood" of such a being.
Agreed, but that is not what the question in #296 was about. It was only about "where is the person?", when head is separated widely from body.
talloulou said:
Now as for the head part obviously if the head is alive and can be given another body or a mechanical body and if the head maintains "awareness" and brain function than I can certainly see the arguments continuing personhood for that being as well.
Technically, keeping the head alive is much harder than keeping the body alive. Oxygenated blood has to be provided. Lots of it; about 25% of the normal blood supply leaving the heart goes straight to the mere 3-pound brain. And this blood needs to contain lots of organic fuel, too; the brain is constantly using that oxygenated blood to burn various sugars to have the energy to do its work. Also, if moist air is hissingly pumped into the cut esophagus, it will exit through the mouth/nose, and an awake brain will still have control over mouth and tongue muscles in the head--the decapitated person will be probably able to talk in a weak whisper. Talking could be vastly improved with foresight, making the slice through the neck below the larynx. This will leave no doubt in
any other person's mind, as to where the person is!
talloulou said:
However I don't see how any of this relates in anyway to an embryo as that is an organism that when aborted has it's development arrested and life terminated. It is quite reasonable to argue that a being on life support who will never be capable of much of a life and has no brain waves should be terminated.
Certainly there is not at this time any significant rationale for keeping the mindless body alive, as you already wrote above.
talloulou continuing said:
This is quite different from an embryo, an organism that only lacks sufficient brain capabilities because it is young and has not yet fully developed
Please do not confuse the actual with the potential. The whole point is that if the fetus is up-until-some-moment mindless ("lacking a person-class mind"), then it cannot possibly until-that-moment be a person.
All it is, is a body. Period. (Now do you see why I have constructed this scenario?) And it is a well-measured fact that the fetus possesses
at most, even at birth, only an animal-class mind.
talloulou said:
but if unmolested will more likely than not have brain capabilities comparable to healthy able bodied persons.
This is true, but not inherently necessary --especially in an overpopulated world. And so that's why they can be aborted when unwanted.
talloulou said:
A terminally ill person on life support with no brain capability is not comparable to a new developing fetal human. One is easily dismissed as life without merit while the other just needs time to grow.
So you are saying that the first has no potential, while the second has some potential. But you are not saying why that potential MUST be fulfilled. And until you or other pro-lifers can explain why that potential MUST be fulfilled, you have no reason to say that the unwanted unborn MUST instead be wanted. Simple.