here are some arguments excerpted from a paper I will be giving this Friday at a conference on the Ethics of Organ Transplantation at The University of St. Thomas in Houston, TX.
What has all of this got to do with animalism and TEA? Well, modern physics tells us that, at the microphysical level, our bodies (i.e. our animals) are nothing more than dense cloud-like arrangements of particles. If this physical picture is true (and our best science confirms that it is), and if human persons are really just identical to their material bodies, then wherever a human person is present, there will be not just one thing, but very many, overlapping, perfectly viable person- like things present. And each of these person-like things will be just as capable of thinking as the others, in virtue of the fact that it will share all of the necessary parts depending on the manner in which its putative boundaries are gerrymandered.
In light of this picture, the animalist has just a few options for a plausible personal ontology. Either (a) she might imagine that the boundaries of the animal with which she is identical are vague boundaries, the sort of boundaries that fade out gradually instead of coming to a crisp end. (Van Inwagen 1990) or (b) she might suppose that the boundaries of the animal she is identical with are super-precise and that only one of the many things located where she is is fit to be called the animal to which she is identical (this is Merricks strategy); or (c) she might think that there are really very many distinct animal-like things (and ipso facto) very many distinct person-like things with distinct boundaries located where she is, each of which is such that it could equally well be called an animal or a person (Unger 2004).
If she takes option (c) then she is open to
The Ethical Argument Against Animalism (TEA-AA)(1) The Animalist theory of persons entails that wherever any human person, P, is located, there is at least one other human-shaped thinking animal, A, such that A is located where P is located and A shares all of its parts with P, and P shares all of its parts with A.
(2) If (1) is true, then presumably, if P is worthy of ethical consideration, then A is worthy of ethical consideration.
(3) If (1) is true then presumably, when we remove an organ from P, we remove an organ from A as well.
(4) Presumably, we only get consent for the organ removal from P.
(5) Thus, necessarily if we remove A’s organ, then we do so without A’s consent.
(6) But removing A’s organ without A’s consent is unethical.
(7) Therefore if the animalist theory of persons is true, then organ removal and transplantation is necessarily unethical.
(8) But we do not believe that organ removal and transplantation is necessarily unethical.
(9) Therefore (from 7, 8) it is not the case that the animalist theory of persons is true.
Of course if the animalist rejects option (c) as most animalists would, then the TEA-AA will pose no problem for her, as she can simply deny TEA-AA 1. But then which of the other two options should she take?Suppose that the animalist endorses option (a). This gets her around the trouble of TEA-AA, true enough, but it does not get her out of ethical trouble altogether. After all, consider the following cognate argument
The Ethical Argument against Vague-Animalism (TEA-VA)(1) The Vague-Animalist theory of persons entails that wherever any human person, P, is located, there is one and only one thinking thing located there, and its boundaries are vague.
(2) If (1) is true, then necessarily, for any time, t, and any hunk of matter, M, it will be vague whether M composes P at t or not.
(3) If (2) is true then necessarily, for any pair of times it will be vague whether P-at-t1 is identical to P-at-t2.
(4) Assume we get consent from P-at-t1 for the organ removal, but the organ is removed from P-at-t2.
(5) In that case it will be vague whether we have really gotten the consent of P-at-t2 beforehand.
(6) But removing P-at-t2’s organ without P-at-t2’s consent is unethical.
(7) Therefore if the vague-animalist theory of persons is true, then organ removal and transplantation is necessarily unethical.
(8) But we do not believe that organ removal and transplantation is necessarily unethical.
(9) Therefore (from 7, 8) it is not the case that the vague-animalist theory of persons is true.
the notion that underlies TEA and each of its cognate arguments is that whenever we take an organ from a thinking thing we must first get the consent of that thinking thing. It would be very bad for you if I could consent to you having your organ removed without your say so. Hence, if at any time t1….tn it is vague what hunks of matter do or do not compose an individual (at it surely must be, at all times, for individuals with vague boundaries), then if we get the consent of P at t1 the identity of P at t1 will necessarily be vague (since P is nothing more than a hunk of matter, and that hunk of matter’s boundaries are necessarily vague on this theory). But if this true, and it is true that, when we remove the organ from P at t2, P’s identity at t2 is also vague, it follows that it will be a uncertain whether the individual that earlier consented to giving their organ is the same as the one that later gets its organ removed. But in order to be ethically sound when removing an individual's organs we need clear, non-vague, consent from that individual (assuming that they are living, thinking, entities) we cannot make do with vague consent. So it seems like (a) is not an option.
This leaves the animalist with option (b), namely that wherever a person is located there is just one arrangement of atoms that is identical the person, but there are lots of arrangements that are almost identical to the person.
The Ethical Argument against Super-Precise Animalism (TEA-SPA)(1) The Super-Precise Animalist theory of persons entails that (i) for any human person, P, P is identical with one and only arrangement of atoms, (ii) and P’s boundaries are super-precise, and (iii) there are many arrangements, A1…An in vicinity of P that are almost but not quite identical with P.
(2) If (1) is true, then presumably, if P is worthy of ethical consideration, then A is almost worthy of ethical consideration.
(3) If (1) is true then presumably, when we remove an organ from P, we almost remove an organ from A as well.
(4) Presumably, we only get consent for the organ removal from P.
(5) Thus, necessarily if we remove A’s organ, then we do so without A’s consent.
(6) But removing A’s organ without A’s consent is unethical.
(7) Therefore if the animalist theory of persons is true, then organ removal and transplantation is necessarily unethical.
(8) But we do not believe that organ removal and transplantation is necessarily unethical.
(9) Therefore (from 7, 8) it is not the case that the animalist theory of persons is true.
What if the animalist adopts this approach? She would then say that there is only really one animal there, though there are lots and lots of things that are almost animals. I find this the least plausible option for the animalist to take. After all, there are lots of things of that are objects of ethical consideration that are much less like a human person than the almost but not quite human arrangements of atoms that the Super-precisionist theory posits. For instance, no one would think that was ethical (or sane) for me to go around removing the organs of dogs or cats or without their consent or that of their legal guardians. This being the case, why would I deny ethical status to these arrangements of atoms? Well, in the case of the dog, the super-precisionist would say, you have a super-precise living arrangement. But the almost human arrangements aren’t living like the dog. I find this hard to swallow. If they are not living, after all, why do they all go wherever I go? The right thing to say is perhaps that they are almost living and thus almost worthy of ethical consideration. At this point there is little to do but throw up one’s hands in frustration.
