H- wrote:
Quote:
I agree, it can present a problem if they use consciousness as the definition or defining criteria of personhood. I don't think that applies to sphere's formulation, though, as he was talking about a physical structure capable of sustaining consciousness, and that remains intact during a coma or sleep or other unconscious states, generally.
The formulation of a "physical structure capable of sustaining consciousness" is just a dodge to try to avoid the problem. The problem does not go away.
A dodge by whom, and to what end? I'm not sure why you'd assert that. There is literally no way of identifying the precise moment when meaningful consciousness develops; and when it does, it's probably rudimentary at first and develops greater complexity and meaningfulness to the individual with time. We know that certain higher brain functions are required for conscious thought, and that higher brain functions require a developed and functional nervous system. As vitus referenced, we simply don't know when that is, but we do know that as the CNS becomes more complex, the likelihood of conscious thought increases. It's entirely reasonable, then, to reference structural form and thus presumed function in forming a basis for our opinions about when
Personhood, as defined centrally on consciousness and self awareness, occurs--keeping in mind, of course, that these are ultimately informed
opinions.
To answer a previous question: once a human being acquires
Personhood, they retain the right to that state of being until it can no longer be sustained or restored, as is the case with irreversible brain death. Prior to that, in my philosophical view, based on the above reasoning, they do not have a right to
Personhood, as they currently do not meet that criteria. The argument that human tissue with the potential to develop it should be protected in order to do so is compelling, though. I just happen to believe that the right of the host
Person to determine whether that happens or not, in the stages prior to the development of
Personhood, trumps the case for it.
The devil made me do it the first time, second time I done it on my own - W