Showing posts with label ontology. Show all posts
Showing posts with label ontology. Show all posts

Tuesday, April 14, 2015

God is not good



One issue that is constantly at the back of my mind is the so-called problem of evil. This problem is formulated in many (usually philosophical) ways—e.g. as Epicurus’ or Hume’s famous dilemma between forfeiting God’s goodness or his sovereignty in the light of evil. Yet, I think that when most people feel the weight of this dilemma, they feel it emotionally and not intellectually—at least that’s the case with me. When confronted with the callous reality of suffering in the world, the question immediately arises regarding how a good and loving God could be behind the scenes, pulling the strings as it were. I mean, if the God of Christianity exists, then why do children die by the thousands every day—by starvation and disease to name a couple--or why do natural disasters constantly kill significant percentages of the inhabitants of the world in a cyclical fashion? Why is there so much filth, injustice, suffering, disease, abuse, neglect, terror, sorrow, and death in a world supposedly created and sustained by a good and loving God?

One common apologetic response is the “We cannot see the whole picture” adage. I think we’ve all heard this, and maybe thought it: God’s ways are not our ways, therefore while we look at this or that act of suffering, we are not in a position to step back from it as a whole and see how it all woves into the fabric of all of existence. The point articulated here is basically that our view of things is incomplete and because of that we lack a God’s eye view with which to see how the evils in the world relate to one another. Therefore, these acts which we mistakenly characterize as evil could actually be good when the entire picture is unraveled, and thus we lack justification for pinning these evils on the character of God.

 Surprisingly, to some of my readers, I am not sympathetic to this view. Don’t get me wrong, I agree that our vantage point as humans is finite and that we should be careful when attempting to extend this viewpoint beyond its reach to make judgements that we have no right to make. Nevertheless, the aforementioned apologetic script runs into many problems of its own. For instance, if the seeming evils of this world are really instruments for good, then it seems hard to absolve God of the label of evil. For it seems quite obvious that the rape of a woman or the death of a child is evil, and no matter what good comes of it the individual who arranged these events is morally culpable for using these acts of evil as instruments to achieve some good. More than this, the argument could also be made that if God’s purpose is to achieve certain goods, then, since he is omnipotent, he could achieve those goods without the utilization of evil—at least without the evil that is not tied to free will.

However, I still think that even these objections given are wrong-headed, and this is where I make my transition into the real subject of this post. My argument is that all this talk of God as morally culpable or morally virtuous, as well-behaved or misbehaved, is simply the wrong way to conceive of and speak of God’s relation to the world and man. You see, when one begins talking about whether an individual is morally justified or morally culpable regarding specific acts, they are assuming that that individual is a moral agent. That is, they are assuming that the individual is an agent among others and is somehow part of a moral community. When determining one’s moral standing we are asking questions regarding the moral obligations and duties of that individual and how they relate to a moral community, and subsequently we desire to determine whether or not that individual has satisfied those obligations. But the question that needs to be posed with respect to God is whether or not he is a moral agent in this way. And the answer seems to be a resounding “No.”

Remember that God, as classical theism has conceived of him, is not a being among beings, or an agent among agents. He is not, as many contemporary theologians have promulgated, simply a person with all good attributes maximized. That is to say, he is not a being with the attributes of omnipotence, omniscience, and benevolence etc. No, he is being, he is existence, he is goodness etc., and his being is his goodness which is his power which is his knowledge. So the significance of this to our discussion is that God is not a creature among creatures, or a being among beings, or a person among persons, or an agent among agents, or an existent among existents, therefore it seems that God is not one among many, and thus is not part of any moral community. This seems to entail that God is not a moral agent. That is to say, there are no moral obligations or duties that God needs to fulfill, and therefore he cannot be seen as morally virtuous nor unrighteous. Again, these terms simply don’t apply unequivocally or literally to God. God cannot be morally good or evil, the way we use these terms, any more than God can be corporeal.

Now even many Christians, or theists, will feel uncomfortable with this. For isn’t a central claim of orthodox theology (whatever that is) that God is morally good and just? Sure, but classical theists have always understood these terms to apply to God analogously, and not literally—just like any predications of God. So, we can indeed say that God is good, as long we know that we don’t mean that God is literally morally good.

Now the skeptic is most likely yelling at the computer screen right about now, articulating the following response: If this whole post was simply to show that moral terms cannot be applied literally but only analogously, then nothing has been solved. For we can still say that God is analogously evil, instead of literally evil, and the problem of evil still rears its ugly head. However, this is simply not the case, because for a scholastic perfection is the tell-tale standard of goodness, and perfection is achieved when a substance perfectly achieves the ends set down by its nature—that is, when an end is actualized—and evil is seen as a privation—that is, the absence of an end that should have been actualized. Therefore since God is pure actuality and pure being, it follows that he is a perfect being, and thus is good. Furthermore, since God is purely actual then he contains no privations, and thus no evil—again, with the understanding that these terms are being used analogously when applied to God.

So, in the grand scenario of things this means that the problem of evil is a category mistake when promulgated to question the existence of God. The whole talk of good and evil, well behaved and misbehaved, morally culpable or morally virtuous, simply doesn’t apply to God. God is not evil, and he is not good, as long as these are predicated literally.

Friday, January 16, 2015

Science and explanation


Science works by uncovering certain conditional statements such as “If a occurs under certain ideal conditions, then b will occur” or “if a is present under certain ideal conditions, then b will be present.” For instance, every time water accumulates energy in the form of heat, once the water reaches a certain temperature (approximately 100 degrees Celsius) it will become gaseous. Thus, we can form the conditional statement that “if water reaches the temperature of 100 degrees Celsius, then it will become steam.”
Now this is generally how laws of nature come to be formulated. We run an experiment a few times under ideal conditions, and when a certain state of affairs reliably obtains, then we assume that this happens across the board and formulate a law of nature. This means that laws of nature are really just descriptions of the way nature tends to behave.

But what, then, is the explanatory use of laws of nature? For example, if one asks, per our example above, why when water reaches a certain temperature it subsequently tends to become gaseous, it won’t do any good to revert back to the law that states this very thing. For that would simply be to say that a tends to be followed by b because a law of nature says that b’s are reliably produced by a’s. Such an answer would thus amount to a tautology, and be explanatory vacuous.
Now, one could instead say that the boiling point of water is not explained by the law of nature, but rather that the boiling point of water is explained by molecular behavior, kinetic energy, and molecular forces. The problem, though, is that here a law of nature is simply being explained by more laws of nature—for molecular behavior, kinetic energy, and molecular forces are themselves simply physical descriptions. That is, this explanation is tantamount to saying that the reason a’s are followed by b’s is because c’s are followed by d’s, and e’s are followed by f’s etc. But, this only pushes the problem back a bit. For the original question was not how water becomes a gas, but, rather, why it does. And explaining laws of nature by other laws of nature only answers a “how” question, and not a “why” one. (Not to mention that if this method of explanation were valid, then eventually we would arrive at a law of nature which simply has no explanation whatsoever, which is absurd.)

This is to say that the ultimate question here pertains to asking why things tend to behave the way they do at all. And again, it will not do to answer this by reverting to any law of nature, because a law of nature is purely descriptive. But then what tool does science have for answering this “why” question, since all science can really do is formulate descriptive laws of nature useful for prediction and manipulation? The answer is that science simply does not have this tool, philosophy does. And this is why naturalist Bertrand Russell said the following:
[Physics] lays down certain fundamental equations which enable it to deal with the logical structure of events, while leaving it completely unknown what is the intrinsic character of the events that have the structure[…] All that physics gives us is certain equations giving abstract properties of their changes. But as to what it is that changes, and what it changes from and to—as to this, physics is silent.

The point here is that science can tell us about certain regularities in nature. But, it cannot tell us why these regularities happen without fail, or why the correlation between these regularities is necessary, or exactly why it is of the nature of substances to have certain dispositions to behave the way they do, or even why there is regularity at all.
Thus stated, we see that science does in fact have explanatory limits, and therefore we should not expect that science exhausts our knowledge of reality. Science is not the be-all end-all description of reality. It tells us nothing about the intrinsic nature of the things that it describes. It only tells us of the quantitative, and not the ontological.

Sunday, January 4, 2015

The argument from contingency


The cosmological argument for the existence of God has taken many different forms for hundreds of years. However, the version that I take to be the most powerful, as some readers of my blog know, is the argument from contingency. And it is this version that I will be presently defending, as well as answering common objections put forward against it.

The terms
Before promulgating the argument I feel it necessary to define the terms being used (i.e. contingency and necessity). Now, there are different (though not contradictory) definitions of contingency, so let me spell these out. Something is contingent if: (1) it exists, but could have possibly failed to exist, or (2) it is not of the nature of it to exist, or (3) its nature can be contemplated without simultaneously contemplating its existence.

Let me now expand these definitions so as to illuminate how they each entail contingency. If some existent X satisfies (1) then, to reiterate, it is possible that X could not have been. But this necessarily entails that it is not of the nature of X to exist. For if it was of the nature of X to exist, then it could not be possible for it to fail to exist. (My claim here is that if it is of the nature of X to be Y, then you cannot have X without Y. As an example, if it is of the nature of a triangle to have three sides then it is not possible for an triangle to fail to have three sides.) This point seems to lead us directly to (2), and thus our first two definitions go hand in hand. Now what this means is that if it is not of X’s nature to exist, then X does not contain the reason for its own existence, and thus it must derive its existence from something else.

 Let’s take a look at (3). If I can contemplate the nature of X without simultaneously contemplating its existence, then this entails the fact that it is not of the nature of X to exist—otherwise contemplating the nature of X would be to simultaneously contemplate its existence. Thus we see that (3) leads to contingency for the same reasons as (1) and (2).

From what precedes it should be obvious how we can define necessary. Something is necessary if it is non-contingent. That is to say, something is necessary if it is not possible for it to not exist (i.e. it must exist), or if it is of its very nature to exist, or if contemplating its nature entails simultaneously contemplating its existence.

The argument
It is now appropriate to state the argument from contingency, and note that the term contingency in the argument can take the form of any of the above definitions:

1) If something is contingent, then it derives its existence from something outside of itself.
2) The universe is contingent.

3) Therefore, the universe derives its existence from something outside of itself.
The argument is logically valid, that is, the conclusion follows necessarily from the premises. But the question can be posed regarding its soundness, so let us go about demonstrating the premises. Premise 1) seems to follow necessarily from the definitions of contingency given above. To reiterate, if it’s possible that X could (have) fail(ed) to exist, then the reason for its existence is not contained within its own nature, and thus it must be contained in the existence of something else—and this thing would be where X derives its existence from. Premise 1) then seems to be on quite solid ground.

Let us now turn to what is most likely the premise that a naturalist will find most fault with, namely, premise 2). The easiest way to demonstrate premise 2) is to demonstrate that the universe satisfies the definition(s) of contingency. So, the first thing we can ask is whether it is possible for the universe to have failed to exist. Here we might meet some resistance. First, what exactly is meant by the universe, and how do we know that we can conceive of it failing to exist? Well, by universe I simply mean “all matter, energy, and space-time,” and therefore this includes not only our observable universe, but any meta-universe(s), if you will. Subsequently, to say that we can conceive of matter, energy, and space-time not existing does not seem to bring forth any inherent difficulty. That is to say, there is no contradiction or incoherence in such a statement, and thus I see no claim for inconceivability that could be made here. (Note that something is said to be metaphysically possible if it is conceivable.)
What about the second definition of contingency? Does the nature of the universe contain the reason for its own existence? I don’t see how it does, in that having the nature of being all matter, energy, and space-time does not tell us why all matter, energy and space-time actually exist in the first place. That is, there is nothing in matter, energy and space-time together (or even apart) that tell us that it must exist. This goes hand in hand with the third definition of contingency. That is, I can contemplate the nature of the universe without simultaneously contemplating its existence. But if I can do this, then the reason for the existence of the universe is not found within itself.

What this demonstrates then is that the universe—all matter, energy, space and time—satisfies all three definitions of contingency, and thus the premises of the above argument seem to be vindicated. This obviously means that the conclusion is valid and sound, and therefore the universe necessarily derives its existence from something else.

Objections
It should go without saying that the naturalist will not take this argument lying down, nor would I expect one to do so. There are many arguments or objections that could be leveled against the argument from contingency, and while I cannot deal with all of them here, I will currently try to deal with the most penetrating and popular ones.

(a) How do we know that what the universe derives its existence from is God? There is nothing logically wrong with claiming that perhaps the universe derives its existence from something that is itself contingent. However, this only pushes the problem back a step further, for then this thing requires an account for its existence. The point here is that we must, at some point, admit of something which is non-contingent, that is, necessary—something that cannot fail to exist. This would be something whose nature contains the reason for its own existence, and whose nature we can contemplate while simultaneously contemplating its existence. This thing then just would be existence, that is, it would be pure existence, or pure being. And surely this is worthy of earning the name “God.”
(b) Why admit of something necessary? Why can’t we have an infinite series of contingent beings? I will not answer this objection by asserting that an actual infinity cannot exist. For this is something that it seems even mathematicians and philosophers cannot agree on. Rather, my argument is that a chain of contingent beings remains contingent. Now, before one levels a fallacy of composition at me, remember that not every inference from a part to a whole is fallacious. For instance, if every brick in a wall is red, then it does in fact follow that the wall is red. What this means is that claiming that a chain of contingent things is itself contingent commits the fallacy of composition would need to be demonstrated. Moreover, this could be avoided if one simply demonstrates that a collection of contingent things is in fact contingent, and this I plan to do currently.

Physicist Paul Davies explains the problem elegantly:

[I]t is quite wrong to suppose that an infinite chain of explanation is satisfactory on the basis that every member of that chain is explained by the next member. One is still left with the mystery of why that particular chain is the one that exists, or why any chain exists at all.


This point was also made a long time ago by the mathematician Leibniz when he gave an example of an infinite collection of books, of which each book was simply a copy of the content in the previous book. The point being that the content in the books is not accounted for simply because the collection is infinite, and there must be something outside this collection that does account for it. The big picture here, then, is that if we have an infinite collection of individual things of which it is possible for them to fail to exist, then it is possible that the collection in its own right could fail to exist, and thus the infinite chain is still contingent. Therefore something necessary must still be admitted.

(c) Why expect the universe to admit of explanation at all? Why can’t the universe simply be? To claim that the universe (or anything) might escape explanation in principle is to admit of brute facts—in fact, that’s exactly what a brute fact is, namely, a state of affairs which has no explanation for its existence. There are a few problems with this line of reasoning. First, since things are made intelligible by explanation then a brute fact does not have an explanation for itself, and it has no explanation to impart to anything else. This entails that a brute fact cannot be a participant in an explanatory chain, and therefore it certainly cannot be the end of an explanatory chain, as the universe would have to be. (Note that I have argued this at much greater length here.)
The second problem is that an object or substance can only either possibly fail to exist, or not. This is to say that something can only either be contingent or necessary. There is no middle ground here, of which a brute fact would have to be. To deny that something can either only be contingent or necessary is to deny the law of excluded middle, and would thus be illogical.

(d) It’s possible that the universe is eternal, and thus it would not be contingent. I have no problem with theoretically granting the possibility of an eternal universe. However, simply asserting that the universe could be eternal does not thereby make it necessary. Let us return to Leibniz’s example of the collection of books to see why this is so, except let us not imagine a collection of books but, rather, simply one book existing eternally. Does the fact that this book has always existed demonstrate that it is necessary? No, because one can still ask why this book exists, has the content that it does, and why this content was not different. The point is that it remains true that nothing about the book, not even its eternality, provides the reason for why it exists at all.  To always exist is not the same as existing necessarily, because duration of existence does not enlighten us to the reason of existence. Moreover, duration of existence does not affect a thing’s nature. A triangle is still a triangle, whether it exists for a second or for an infinite amount of seconds.
Similarly, it would remain the case that an eternal universe could possibly have been different, or it could have not existed at all. Moreover, it would still remain the case that contemplating the nature of the universe does not entail contemplating its existence. Thus, even an eternal universe satisfies the definition, not of necessity, but of contingency.

There are other objections that can be raised (e.g. “What created God?” or “Why does God exist?”) but I felt the need to only address, what I take to be, the most substantial ones. The point seems to remain that the universe is indeed contingent, and that it ultimately derives its existence from something which is necessary and which we call God. The argument from contingency then seems to be successful.

Monday, December 15, 2014

Contra presuppositionalism, Part III: Ontology and Epistemology


This is the last post in our series on the Christian apologetic method of presuppositionalism. In this post we will be focusing on, what I take to be, one of the biggest philosophical blunders that presuppositionalists make. What follows is a quote from Cornelius Van Til, in his book The Defense of the Faith, that will help illustrate exactly the type of fallacious reasoning that is employed:
[I]t takes an ultimate cause, God, if there are to be genuine second causes. In other words, it is only on the presupposition of the truth of Christianity that science is to be explained. (p. 265)

The problem might not be apparent upon a cursory glance, but notice exactly what Van Til is saying here. First, he’s saying that God is the ultimate cause of everything that exists, and that it is only due to his existence that there are any subsequent and secondary causes or existents. Now this, for a theist like myself, is uncontroversial. But then Van Til claims that this fact allows us to presuppose the truth of Christianity, and that this act is what makes science possible. Again, a theist would most likely agree that since God exists and is the first cause, then all order and regularity—of which science is founded on--is ultimately attributable to him. But, this is not the same as saying, therefore, that we must presuppose the existence of God, much less the truth of Christianity. That is to say, to admit that God is first in ontology does not mean that God is first in epistemology—remember that a presupposition is an epistemological first principle.

The point here then is that the presuppositionalist is conflating the order of being (ontology) with the order of knowing (epistemology). The presuppositionalist is essentially saying that since God is the ground of our existence and being, then we must presuppose his existence in order to reason at all. But this is false, unless one assumes that the order of being is identical to the order of knowing. In fact, when bringing up this point to presuppositionalists in the past, some of them have claimed that perhaps, then, there is no difference between ontology and epistemology, or that ontology and epistemology are not so easily separable in our philosophies. Now, while the latter is plausible, the former is simply false. Take an example. I first had knowledge of my wife before I had knowledge of her parents, and therefore my wife is of a previous order in my knowledge than her parents. But obviously this does not entail that my wife existed before her parents! For to argue such a thing would be absurd, and it would be to conflate metaphysical domains. But notice that this is exactly what the presuppositionalist is doing, namely, equating ontology with epistemology—that is, arguing that the order of ontology determines the order of epistemology. And since presuppositionalism rests on such metaphysical confusion then we have warrant for dismissing it as an invalid method.

Now, not only does our current discussion demonstrate that presuppositionalism rests on fallacious conflations, but it turns the tables against the presuppositionalist himself. Apologist Norman Geisler articulates:

Certainly if there is a God and all truth comers from him, it follows that even the very criteria of determining truth from error will be God-given. But God is what is to be proven, and we cannot begin by assuming his existence as a fact. If we do not have any tests for truth with which we can even begin, we can never make truth claims nor can we even know something is true.

The point is that every proposition, whether presupposed or not, must be subject to justification and rational warrant to determine if it’s true. But arbitrarily assuming something to be true (i.e. God’s existence) in order to ground truth is nonsense. That is, you must first have a criteria of truth before a proposition can count as true, and, therefore,  the existence of God (as well as all other propositions) must be subject to that criteria, and thus subject to our reason. Unfortunately, this is the complete opposite of what the presuppositionalist wants. He doesn’t want God’s existence, or the Bible, subject to our rational human criteria, rather he wants our rational human criteria subject to the Bible and God. But this simply isn’t possible given the way epistemology works. As I articulated in previous posts in this series, we simply cannot begin epistemologically with God or the Bible, because adhering to the truth of God’s existence or the Bible are endeavors that require previous epistemic and ontological premises to be true, and thus it requires that the former propositions are grounded the latter. That is to say, it requires that God’s existence and the truth of the Bible rest on propositions more fundamental than themselves, and thus the existence of God and the truth of the Bible cannot constitute presuppositions.

Monday, September 8, 2014

On reductionism


All the talk on reductionism as of late has kept my mind quite occupied. So occupied, in fact, that I felt the need to devote an entire post to reductionism itself. Though reductionism does come in different forms, this post will deal with the form that claims that an object is nothing but the structure of its physical constituents. This form of reductionism is very appealing to naturalists for the following reason. If the natural world is all that exists, then objects are nothing but physical particles in different structural forms. Hence, a lump of bronze and a bronze statue consist of the same matter simply arranged differently.
The initial difficulty with this view was articulated perfectly by attentive commenter JD Walters:

[D]escribing a cat as a mere 'amalgam of physical properties' is the (metaphysical) bundle theory of particulars and has all sorts of problems, including the consequence that if even one of the cat's properties changed, even the number of hairs on its body, we would be dealing with a different cat.

Let us expound JD’s argument here. Let’s take a cat, which on reductionism is nothing but a hunk of matter arranged cat-wise. This cat, then, is defined by the structure and arrangement that the particles are exhibiting. So, now let us remove a single hair from its body. What do we now have? Well we now have a cat with a different physical arrangement than before, and thus we have a different cat altogether. Why? Because cat A (the first cat), though it looks the same as cat B (the second cat), has more physical constituents than cat B—the difference between their constituents being the particles that make up a hair—and thus has a different physical arrangement than B. Hence, since cat A’s matter has a different structure and arrangement than cat B’s matter, then cat A and cat B are not the same cat, on reductionism.

Now, this certainly seems to run counter to our common sense—though the fact that it runs counter to common sense only demonstrates that reductionism, then, runs counter to common sense. For when a cat goes for a haircut, say, we don’t really believe that the post-haircut cat is a different cat than the pre-haircut cat. But, this only means that there must be something more to a cat than its mere physical constituents.

However, one attempted rebuttal that I’ve heard so far from reductionists is that the reason we still consider cat A the same as cat B is because our brains still categorize that there are defining characteristics or properties in cat B that make it the same as cat A. But this response runs into problems. First, how our brains characterize objects is superfluous to the discussion at hand. Talk about how our brains characterize objects is epistemological, as well as psychological, while talk of what actually makes an object an object in mind-independent reality is ontological. Hence the above objection is only conflating ontology with epistemology. To reiterate, when we talk of reductionism we’re talking about what makes an object that very object—i.e., what makes a cat a cat, as opposed to a frog. Thus stated, we’re interested in substances in themselves, and not how we perceive or categorize those substances.

Second, this objection, even if we ignore its metaphysical conflation, still does absolutely nothing to answer the original point. Remember that on reductionism an object is nothing but the arrangement or structure of its physical constituents. So if cat A has a different structure (even by a few particles) than Cat B, then, on reductionism, they cannot possibly be the same object. And thus it makes no difference whatsoever how we categorize said objects, because they are necessarily different objects because they have different physical constituents and structures!

Furthermore, the topic of how we categorize objects, based on an ontology of reductionism, leads to further absurdities in itself. Let us return to cat A and cat B. It is true that the difference (a hair) between A and B is miniscule when we perceive it, and therefore our visual perceptions will regard A and B as the same. But what if the difference is greater? What if cat B is also missing a leg? Can cat B be recognized as cat A? Well, not in the way the reductionist would want, since, again, cat B has different (less) physical constituents than cat A, and such constituents have a radically different arrangement than cat A as well. But suppose, contra the conclusions of reductionism, that the reductionist still wants to affirm B and A to be the same cat. Well, we can go even further. Suppose cat B is missing a tail, an eye, and an ear, in addition to its missing leg. Suppose the cat continues to deteriorate. At exactly what point is this cat B, on reductionism, no longer cat A? Notice here that the reductionist would be stuck in a dilemma, because at whatever point he identifies that the physical arrangement of cat B no longer constitutes cat A, the only argument for stopping at that specific point, consistent with reductionism, can be that cat B’s arrangement or structure is different from cat A’s—because, again,  on reductionism an object is defined as nothing but its physical constituents. Now if the reductionist wants to claim instead that cat B is different than cat A because it no longer retains the properties that make it cat-like, then the reductionist has given up reductionism. For admitting that there are properties inherent in a substance or object that make it that very substance is to give up reductionism. That is, it is to admit that there is something in a substance over and above its physical structure that makes it a certain substance.  
But we can push even further against reductionism, by returning to our original difference (one hair) between cat A and cat B. Notice that if cat B has the same structure as cat A minus one hair then cat B’s structure and arrangement is subsumed under the structure and arrangement of cat A. That is to say, cat A’s arrangement contains the arrangement of cat B. Now we can continue this process by removing two, three, and four hairs etc., to create a cat C, D, and E etc. Notice that each subsequent cat is contained in the former ones. That is to say, cat A contains all of cat B, C, D, and E etc. But this leads to something quite peculiar. Since, on reductionism, all of these cats have different structures and arrangements then they are all different cats. But this means that cat A literally contains cat B, C, D and E etc., which means that present in cat A is a multitude of other different cats at the same time in the same place! Such is the absurdity of reductionism.

Reductionism, then, turns out to not only go against common sense but, also, to lead to absurdity. Obviously, then, an object or substance cannot be nothing but its physical constituents. Thus stated, there must be something more to substances in themselves over and above their parts.

 

Wednesday, September 3, 2014

Essentialism and reductionism


Mike D over at The Aunicornist has, once again, devoted a couple of posts to refuting the metaphysics of Thomism. Since I am myself a Thomist I felt the need to deal with such arguments and assertions. I will, for now, be dealing with this post of Mikes. So, let’s dig in.
Mike states the following:

[W]e all agree that if tomorrow all humans were wiped off the face of the Earth,cats (for example) would still be cats—that is, they would retain the amalgam of physical properties that our brains categorizeas simply “cats”, even there [sic] wouldn’t be anyone around to say, “Hey, that’s a cat!” But does it follow, then, that cats have a property of identity that makes them cats?

Here Mike demonstrates his poor understanding of Thomism by conflating identity with essence. What Mike is talking about here is essence which is just that whereby something is what it is. To grasp a thing’s essence is to grasp all the properties that are essential to that thing remaining that very thing. Or, to take Mike’s example, the essence of a cat is comprised of whatever properties a cat must have for it to remain a cat. Yet, Mike here uses the terms “the property of identity.” But, identity is not the same thing as essence. It is an essence that makes something what it is and not identity. Identity is more broad and more tautological. The property of identity simply means that something is identical to itself and is not identical to what it isn’t. A corollary of this is that all of a thing’s properties are contained in its identity. Yet this is not the same with regards to a thing’s essence.
Let’s use an example to illuminate the distinction between identity and essence. Take two chairs. Each particular chair is identical to itself and is not identical to the other chair even if they both look  exactly the same. Yet, these chairs do share the same essence in that they both provide a seat—here providing a seat is the essence of being a chair. So, two objects can share an essence without being identical. This is because identity takes all of a thing’s properties into account whereas essence only takes essential properties into account. It is essential that a chair provide a seat, but it is not essential for a chair to have four legs. Yet, when contemplating a chair’s identity it is crucial to include the property of how many legs it has—for a chair with four legs is obviously not identical to a chair with three.

All this is important because Mike, in the quote above, is again conflating identity with essence, which wouldn’t have happened if Mike adequately understood the position he’s attempting to refute. So, while none of this, so far, undermines Mike’s arguments, it does demonstrate that Mike does not understand his opponent’s positions the way he thinks he does.

Mike then illustrates his (already confused) argument with an example of a mountain:

Mountains are formed, if I remember grade school geology correctly, when massive tectonic plates press against each other, forcing the earth to slowly rise over eons. I wonder how the Thomist might think about this, then—at what point does the earth have the property of identity of a mountain, versus just being a really big hill or a giant pile of rocks?

Again, Mike should be talking about essence here, and not identity. For a mountain, or hill, at any stage in its formation will still always be identical to itself. And thus, the “property of identity” will always be present. What Mike means to argue here is that if we watched the earth slowly rising over eons then at what point could we say that the earth exhibits the essence of a mountain, as opposed to a hill? The point of this example is to demonstrate that determining the essence of something is not always so clear cut, and that such an endeavor can run into ambiguities and vagueness.

Yet, this argument doesn’t really make the case that Mike thinks it does. First, a Thomist would not claim that determining a thing’s essence is always an easy endeavor. It is in some cases very difficult to determine what the essence of something is, or how such an essence differs from the essence of another. But nothing about this difficulty demonstrates that there are no such things as essences. The real problem then deals with epistemology, and not ontology. Encountering difficulty in determining a thing’s essence is an epistemic problem, while proclaiming that things do not have an essence is an ontological problem, and Mike is conflating the two.  In order for Mike’s example to have any force he would need to demonstrate that difficulty in determining a thing’s essence entails that essences are therefore nonexistent. But Mike has not done this.

Second, Mike’s argument actually makes the case for Thomistic essentialism, and not against. By picking a vague case of determining essence, Mike is implicitly conceding that there are cases that are not vague. In fact, most cases are not vague. One could easily identify the essence of the brain, the heart, water, human rationality etc. The fact is that we can find an abundance of easily identifiable essences all around us. So why should we call essentialism into question because of a few exceptional cases that run into obscurity, instead of affirming essentialism due to the abundance of its applicability? There is no reason. The fact is that we wouldn’t even be able to recognize vague instances of identifying essence if we didn’t already have clear and precise examples.
Mike then articulates one of his central arguments:

Thomists take things like identity, essence, nature, 'prime matter' and potentiality to be literally real properties of the external world, independently of human minds. But at every turn, we can see that we have no reason whatsoever to think that any of these 'metaphysical' properties are anything more than conceptual constructs. There's no reason for us to think that the concept of "cat" is anything more than a useful categorization of our brains for a particular arrangement of matter; we have no reason to think that there exists any such a thing as the identity, essence, or nature of a cat independently of our minds.
Mike is making the argument that our metaphysical concepts are mind-dependent, and that they are simply constructs of our brain that help us order and identify the world we experience. There is no essence of a cat independently of our minds. The essence of a cat is simply something that our brains have constructed in order to arrange the matter that makes up a cat.
While this viewpoint might seem parsimonious, it is rife with problems. First, the world is exactly the way we would expect if there were in fact actual essences and identities of things. One example of this is unity. Let’s illustrate. If I consider all four of my dogs—my Chihuahua, Dachshund, Beagle and Blue Heeler—I can see that all of them share the same essence of “dogness” even though they are not identical. And in that sense they share in a unity between them. They are all individual particulars yet they are in fact related to one another. They are related to one another in a way that they are not related to a cup, a tree, or a lamp. But if Mike is correct, and dogs share no “essence” and we simply construct such things in our brain, then why is it the case that we attribute a shared essence to all these dogs? The only way one can answer this is to say that these dogs, in mind-independent reality, exhibit similar characteristics and have similar properties that allow us to group them into these related “kinds”. But then this simply makes the case for the Thomist! For this is what the Thomist has been arguing all along. For dogs can only be grouped into a specific kind because they have certain dispositions and properties that make them dogs, as opposed to, say, frogs. And it is these dispositions and properties that constitute an essence. So, the fact that the world contains a multitude of particulars yet many of these particulars are unified only makes sense on essentialism.

Second, Mike seems to forget that our concepts are always derived from reality itself. He is so smitten with Model-Dependent Realism and Embodied Realism that he seems to think that our brains literally make this stuff  (like essences) up. (A common example he uses is the way our brain “creates” color. But this is false. Our brains don’t create color. They simply perceive the raw materials of sense datum in a certain way so as to “see’ color. But everything that causes us to see color (e.g. wavelengths and photons ) already exists in the world. So color does exist, it simply exists virtually instead of formally. All this is to say that we perceive color because color exists virtually in reality, and is not a simple construct of our brain. ) But if our concepts are abstracted from reality then this simply isn’t the case. To use an example, I can tell the difference between an apple and an orange. Why? Is it simply because my brain arranges the matter into two different categories? Or is it because there is a real difference between the properties and dispositions of an apple and an orange and my mind is abstracting those differences? Obviously it must be the latter. But if this is true, then there must be something about an apple that makes it different than an orange. And we know this to be true because my understanding of the essence of an orange is different from the essence of an apple. But these essences weren’t simply constructed by my brain, rather they are rooted in the properties of the objects themselves in mind-independent reality.

Mike then states the following:
[W]e can reject the Thomistic metaphysical gobbledygook on the principle of parsimony — the notion that cats have a distinct, non-physical property of 'catness' (their 'essence'), for example, is completely superfluous to our understanding and description of what a cat is. We can have a fully accurate, useful description of the animal simply by recognizing it as an amalgam of physical properties which our brains categorize in a particular way, and nothing more. There is no need to postulate any extra non-physical or 'metaphysical' properties to understand what a cat is, why it behaves as it does, or what it evolved from. Since the assumption of the existence of such things is not essential to our description or understanding of cats, we can discard it. We don't even have to demonstrate its falsity — i.e., somehow 'disprove' the existence of those metaphysical properties — we can simply discard them as superfluous and thus meaningless.
A few responses here. First, nobody has argued that postulating things like essences and identities are pragmatic. So why would Mike be looking for pragmatism here? Why? Because Mike has an empiricist presupposition, and anything that is not scientifically observable, predictable, and measurable is, to him, not pragmatic and therefore “superfluous.” But in order for Mike’s position to be vindicated, he would need to demonstrate that science is the only path to knowledge. But Mike knows that this is self-undermining. So why, then, should we believe that metaphysical concepts like essence and identity can be thrown out simply because science has no use of them? The answer is that there is no reason.

 Moreover, let it not be forgotten that science is only interested in the quantitative aspects of the world and not the qualitative. Yet, metaphysical concepts like identity and essence are not quantitative, and therefore the fact that they might not be pragmatic in scientific investigation is completely irrelevant, since science isn’t looking for them to begin with!
Second, Mike’s argument above implicitly affirms reductionism. That is, Mike believes that any entity or object is nothing more than an amalgam of its physical parts and components. But reductionism runs into problems. For example, if water is nothing but hydrogen and oxygen composed together, then water should not have any dispositions and properties different from its constituents. But surely water does have properties that differ from hydrogen and oxygen. So then water cannot be nothing more than its physical parts. At this point one might say that we should expect water to have different properties than its parts alone, because water isn’t simply hydrogen and oxygen, but hydrogen and oxygen bonded together. So of course hydrogen and oxygen bonded together will behave different than hydrogen and oxygen by themselves. But this is exactly the anti-reductionist’s point. If water behaves differently than its constituents, then there is something about water as a substance in itself that amounts to more than its parts. Thus stated, if a substance has properties that its physical parts do not have by themselves, then there is something over and above these parts alone that make up the dispositions of said substance, and therefore a substance cannot be said to be nothing but an amalgam of its parts.

Hence we see that Mike D has failed to make his case. First, he has shown that he doesn’t even correctly comprehend the position he is arguing against. He constantly rebukes those who recommend Scholastic literature to him, yet he’s shown that his research into this very area is minimal and is lacking. So why not at least buy a book that gives a formal defense of such a position? That would be my recommendation. Second, he has tried to demonstrate why metaphysical concepts like essence and identity are meaningless and superfluous, yet his arguments are rife with problems. Third, he’s attempted to affirm metaphysical theories like reductionism which, when considered, only lead back to the very metaphysical concepts he was attempting to overthrow. I maintain, then, that nowhere have we seen good reason to overthrow Scholastic metaphysics, let alone metaphysics themselves.