Let me see if I understand you: do you mean that the “soul” is the ideal functionality? Which would be exhibited if there were no physical impediments? I am not sure what you mean.
No, the soul would
provide the ideal functionality. Please do not confuse the cause with the effect.
I wonder if you mean by the word “species” the biological classification. If so, then I must point out that this classification if arbitrary and merely descriptive. Dogs are merely domesticated wolves and jackals, and sometimes they even interbreed. Is there now a dog-soul and wolf-soul? I simply do not understand your proposition.
Yes, this is very true. And what you show here that these classifications are not really useful. We need to look at the functionality, or behavior, and based upon that we see if that other being exhibits signs of sentience. If it does, it should be considered to be an “honorary human”. It does not matter if its a carbon-based life-form or not. It does not matter if it was born here on Earth or not.
Sorry, but that sounds like a circular definition or tautology to me. I think, my basic problem is that I do not comprehend what the word “soul” is supposed to mean.
I must confess that I am still working through this philosophy myself, and I thank you for your responses; they do help me. I will concede your critiques of my theory within the domain of science, and I must agree that there is no objective, repeatable method to detect a soul. However, I will contend that your method is not objective either. I speak not of the data, but the application of that data.
To assert the theory of humanity-by-functionality, we must first compile a list of “human” functions. Since it is not actually my intention to enact this theory, a partial list will do. Let us propose, drawing from your previous posts, that language, emotion, and IQ are three members of this list (although we may consider that the list might contain ten criteria or more!).
There are may ways that each of these criteria can go wrong. Language can be impaired in many different and amazing ways. Comprehension, inability to form meaningful sentences, inability to form fluent sentences, and many different combinations of these form a long list of ways language can go wrong. However, the loss of the language ability is not enough to lose human status, is it? Nor would the gaining only of language be sufficient to gain human status, eh?
In another vein, some people do not experience emotion. If they commit a crime, we cal them sociopaths, but the label is equally appropriate for the untold number that do not commit crimes. Certainly even these beings are humans.
Finally, we have treated IQ in a previous post by acknowledging that a low IQ even of 50 is not enough to strip a being of human status.
In summary, the display of all the traits of humanity is not necessary for personhood to be acknowledged. However, how do we choose which traits
are necessary? Will different combinations from a pool be acceptable? To what degree must each trait be present? Your method appears on the surface to be scientific, but it is fraught with politics.
In defence of the soul (in the philosophical domain, mind you, not the scientific), we know that the absence of a trait of humanity in a particular specimen does not negate the being’s personhood, precisely because we know that the trait is in fact present in the soul, only physically impaired.