Monday, February 1, 2016
Catching up with the Present in Presentist Time?
Now consider the scientific fact that it takes time to perceive things. It takes time for light to bounce off a surface and enter into my eye, or for the signals from any one or more of my senses to travel along my neural pathways and make their way to my brain. It likely takes time for my brain to process any kind of input prior to it even becoming conscious. Conscious experience is likely itself spread across a period of time. What this means, then, is (at the least) that what is perceived (or at least those particular conditions or slices of life of whatever objects are perceived) is always in the past relative to your perception of it.
So if the past is unreal as the presentist claims, the world you perceive is also not real and hence your perception is, in a sense, illusory since it is presented as real and existing - the conditions of it presented as actually obtaining. The world you perceive has no real existence - your perceptions are of the ghosts of another world allowed to slip into the actual world, the present, and not of the actual world itself.
Perhaps you can try to infer what the real world is like from what is presented in experience, but this also takes time. Our perceptions and our mental faculties in general have difficulty in "keeping up" with what is real as everything we try to grasp is swiftly swept away into oblivion.
In the presentist's world, then, we are disconnected from reality in a much stronger way than one would have otherwise thought, contrary to many presentists' claims that presentism is somehow the "common sense" view (a claim I would reject for many reasons - see my dissertation, for examples). A real past, however, one that exists and is fully actualized in the actual world we live in (and I think this actually fits common sense a bit better), renders our perceptions true, with us really perceiving and in touch with reality as it is and exists. Including what we see when we gaze out into the stars...
Monday, June 30, 2014
Vaccination is NOT a "Personal Decision"
Now, let's back up for a second. There are five basic groups (here's where I'll probably get in trouble!) of which I think most anti-vaccine folks fall into at least one (often more): 1) Charlatans; 2) quacks; 3) people with poor reasoning skills; 4) people who, as a result of poor reasoning skills (thus making this a subset of 3), think that faith in God is incompatible with modern medicine; 5) people who have been deceived by any or all of the above. It's really a very similar phenomena to snake oil, superstitions, and all manner of popularly spread falsehoods that have polluted society from its very beginning. It's really all in the same boat.
So when people say the sorts of things I listed at the end of the first paragraph, I can't stand it. Seriously, it's only a personal decision in the same sense in which it is a personal decision whether to fire a gun into a crowded room is a personal decision. And every family must decide for themselves, yes, but in the same sense in which every family must decide for themselves whether to commit murder (thankfully, most choose not to). These attempts to sidestep the issue or ward off the ethical duties associated with it are perilously close to a lapse into utter ethical or even factual relativism - the whole vaccine thing might be true for you, but not for me! Such attempts make it seem like it's a matter of taste whether we ought to vaccinate or how safe vaccines are, rather than a matter of objective fact. They make it seem like the issue is unclear in some way or that reasonable people, reasoning well, with the same facts available, would disagree with each other. But, of course, none of that is remotely true. Nor is it true that it is strictly personal, since the effects of such decisions affect others and society as a whole.
I think it is telling that the issue is often spoken of in terms of "my beliefs" or "personal beliefs" and other language usually reserved for matters of taste, "philosophies of life", or weakly-held religious convictions, as opposed to the language of scientific fact, evidence, or objective ethical realities. The latter kind of language is appropriate here, not the former. Yet I think the former actually does capture how this opposition to vaccines actually functions in many people, even though it shouldn't. It is a quasi-religious belief held dogmatically and immune to actual evidence or reasoning (and not based on any good evidence or reasoning and certainly anti-scientific authority). Whereas I think religious beliefs can in fact be justified, being responsive to evidence and reasons, and, if true, can have adequate epistemic grounding, this anti-vaccine position does not have the benefit of being a central node in a foundational world view or being even supposedly divinely revealed. Whereas religious beliefs, for instance, can at least make claims to divine authority, anti-vaccine positions do not have anything close going for them - there is no real claim to authority here and hence no reason to treat it in the way it gets treated by its proponents.
Ultimately, there should not be "sides" as to whether most children should be vaccinated - any more than there should be sides over whether we should let toddlers play alone in a pool with a live handgrenade and a family of water moccasins. And, what's more, these "sides" matter - lives, health, and economy are all on the line here - but people do not think properly about them; they do not actually look at the evidence objectively and without resorting to logical fallacy. People should stop merely "feeling strongly" about the issue and start thinking strongly (and, more importantly, thinking well). Perhaps critical thinking classes or classes on scientific reasoning would be useful, assuming people would pay attention or actually absorb what they were taught. At the end of the day, I would make vaccinations mandatory for everyone for whom there was no special health risk associated with them. That way, people can be ignorant, deluded, and so on all they want without it hurting others. But then, that's why, in America, I'd probably never be elected for office in the first place!
Saturday, January 11, 2014
A Philosophical Take on Van Til
So far so good - when Van Til (and Bahnsen, who substantially agrees with Van Til) goes beyond all this, however, it hard to follow what the reasoning is supposed to be. Van Til thinks that the only appropriate apologetic method is to use a transcendental argument to the effect that only on the presupposition of Christianity is reasoning or pretty much anything else possible at all. Here's where things start to get messy. Sometimes it seems like Van Til is saying that unless a person already assumes Christianity, they cannot make sense of any of this stuff. Other times, it seems like he is saying that unless Christianity is true, none of this stuff would be possible. These are two distinct claims, but he seems to slide back and forth between the two without noticing and this creates a lot of problems with some of the arguments in favor of his method and against other apologetic methods. Most often, he seems to slide back and forth, equivocating between metaphysical and epistemological senses of various terms or concepts, again making for potentially fallacious argumentation. There also seems to be some equivocation relating to other terms such as "authority" or "primacy". Then there's the claim that there are no neutral beliefs - one either presupposes Christianity or its opposite. His claim is that to the extent that a non-Christian agrees with Christianity on some fact, he or she is unwittingly (and inconsistently with his or her own position) presupposing Christianity, an idea which seems to depend on the successful implementation of his transcendental argument (and which, unfortunately, inherits the same ambiguity which then affects his arguments against opponents).
Unfortunately, Van Til (and Bahnsen) does not do a lot to actually show that the transcendental argument works. Simply saying that only on the presupposition of Christianity is, say, reasoning possible does not show that it is so. We need more argumentation. Unfortunately, not much is forthcoming, and what is provided tends to contain gaps in reasoning that are (again, unfortunately) not filled. Over and over again, claims are made as to what the non-Christian is committed to with little in the way of proof that he or she is actually so-committed. This also infects arguments against other methodologies (not to mention some of the mistaken or at least controversial interpretations of various historical philosophers). To take but one instance (my own comments are in brackets), Van Til claims that traditional methods are "allowing for an ultimate realm of 'chance' out of which might come 'facts' such as are wholly new for God and for man. [Where do they do this? How? Is this really a good interpretation?] Such 'facts' would be uninterpreted and unexplainable in terms of the general or special revelation of God. [Why? How does this follow?]" I won't even start on the claim that the use of logic in traditional methods of defending Christianity puts logic above God or in control of God or makes God not God, etc. (There are many things wrong here, one being that Van Til seems to assume without argument that the facts of logic are things out there to which God might be subordinated, whereas many philosophers (not all) would deny that such that there are facts of logic at all in a metaphysical sense - the law of non-contradiction is, on such a view, necessarily true but without some unique entity out there making it true since describing substantive reality is not even what the statement is supposed to do in the first place)
I sometimes had similar problems with the other presupposionalist book I read recently, Vern Poythress's book on logic, which, in its statements and arguments, pretty clearly confused logic with reasoning over and over again and explicitly stated that logic is something like a codification of rationality, which it is not. In any case, I was a bit dissapointed with the argumentation of the presuppositionalist writings I have read so far, despite agreeing with a fair bit as well. I have some other books along the same vein lined up to read (including more Van Til and Bahnsen), so I am hoping that there is more to some of these arguments than I have already seen.
Friday, May 17, 2013
Short Science and God Presentation Notes
Thursday, June 9, 2011
A Divine Memorial to the Past? Memories in Presentist Truthmaking
In A Treatise on Time and Space, J R Lucas suggests the theory that it is God's memories that ground purported truths about the past. More recently, Alan Rhoda has argued at length for this view, noting that it is common fair among process theists. There are some troubles for this theory, though, which show that such a theory needs to be radically restructured and restated if it is to be at all viable. In this paper, I explore these problems and, in doing so, the question of how exactly to formulate the divine memories theory in a plausible way. It turns out that producing a version of the theory that preserves all of its purported strengths and yet still avoids the problems of the other versions is much more difficult than it seems – and, indeed, we seem to have very good reason to be skeptical that such an ideal version will ever see the light of day.
Presentists take it that everything which exists is present and exists at the present. The past, in a very strong sense, is no longer and the future, correspondingly, is not yet. This creates a problem, however, with accounting for truths purportedly about the past. If only present things exist on the presentist view, in what are presentists supposed to ground past-tensed truths? This ‘Grounding Problem’, as it is sometimes called, has elicited numerous responses, almost all of them attempting to point out some present entities or facts that are supposed to be doing the grounding of past-tensed truths. Some appeal to primitive or brute past-tensed states of affairs or properties, others to arrangements of abstract maximal propositions, and still others to temporally distributional properties (among other things).[1]
Despite such varied responses, many of them have met a number of objections – that they are metaphysically ‘cheating’, that they do not really guarantee the truths they are meant to ground, that they have implausible logical consequences, and so on.[2] One view that might be put forward as an ideal solution to all of these problems is to suppose that all the grounding work for past-tensed truths is done by God’s memories – so that God’s remembering my past trip to
At first blush, the statement of such a view appears rather straightforward:
GMem1: It was the case that p iff God remembers that it was the case that p.
But we quickly run into a problem here – is the content of God’s memories past-tensed or present-tensed? From ordinary memory statements like “God remembers that I went to
GMem2: It was the case that p iff God has a memory whose content is that it was the case that p.
I think, however, that we ought to reject GMem2 and instead assign the past-tense involved in ordinary memory-statements not to the content of the memory state itself but rather to the temporal perspective of the speaker on the content. So “Sam remembers that he hit the ball” tells us (at least) that (1) Sam has a memory whose content is normally expressed with the present-tensed “I am hitting the ball”; and (2) the content of that memory is ascribed to a time earlier than the memory. This situation is similar to that involving statements such as “At one time, Sam believed he was the tallest man in the Communist Party”, where the “was” does not indicate that Sam once believed some past-tensed statement about his comparative height in the Communist Party but rather indicates the speaker’s own current, shifted temporal perspective on the purported obtaining of that content. So the analysis of GMem1 should, perhaps, more exactly read as follows:
GMem3: It was the case that p iff God has a memory whose content is that p.
But why is GMem3 needed by the divine memory theorist as opposed to GMem2 in the first place? Well, consider what would happen if we regarded the content of a memory to be past-tensed as in GMem2. The right-hand side of the biconditional in GMem2 contains exactly what we needed to find grounding conditions for in the first place (that is, its having been the case that p). Because of this fact, GMem2 is simply not a successful statement of the grounding conditions for it having been the case that p – it is plainly circular, since whatever grounds the right side is a function of what does so for the left. The sentence ‘it was the case that p’, even though it is used all on its own on the left-hand side and, arguably, appears in an intensional context on the right, still appears on both sides in a manner objectionable enough to defeat the account. To put it in a different way – to give the right-hand side of the biconditional content requires that we are already independently able to give content to the left (since the content of the right incorporates – or at least is a function of – the content of the left). And doing this for the left-hand side will, among other things, require giving it grounding conditions. But this is just what we cannot do since it is precisely the right-hand side of the biconditional which is meant to do that job for the left-hand side in the first place. As a statement of grounding conditions, GMem2, then, simply fails. So the divine memories theorist should formulate their view as GMem3 has it, not as it is in GMem2. The content of God’s memory must be present-tensed (or even maybe tenseless), not past-tensed as GMem2 would have it.
Now that we have GMem3, do we have yet a perfect formulation of the divine memories view? Unfortunately not – we are instead faced with a brand new problem that needs solving. After all, what makes something a memory in the first place? What seems to make something a memory with the content that p – as opposed to some other attitude towards p – is, at least partly, that it is true that it was the case that p. Additionally, for episodic memory, we would also require both that one has a past (perhaps causal) acquaintance with its being the case that p and that this past acquaintance is the cause of the current memory. If Rhoda (draft) is right that God’s acquaintance with facts is direct and that his current memories are a result of these past acquaintances, this additional condition may be required on all of these divine memories which are meant to be doing the grounding of past truths.
But now there is trouble – as just mentioned, the fact that it was the case that p is one of the grounds for the fact that God has a memory with the content that p. And not just that, if we apply the conditions for episodic memory to God’s memories, then all sorts of past-tensed truths will be involved in grounding the fact that God has a memory with the content that p – including the fact that it was the case that p itself. But, on GMem3, the fact that God has a memory with the content that p is itself supposed to ground the fact that it was the case that p! We clearly have a vicious circle that we somehow must break out of. If we want to keep something like the divine memories view of presentism, I take it that the only option is to come up with some other way of picking out the appropriate mental states which are supposed to be doing the grounding work – that is, other than as memories – and in such a way that we do not already presuppose what we are supposed to be explaining – that is, the truth of things like its having been the case that p.
So, where we let ‘M’ designate some type of mental state of God’s which is supposed to meet these criteria just mentioned, the divine memories view should really be formulated something like as follows:
GM: It was the case that p iff God has a mental state of type M with the content that p.
But, having been forced into GM, the divine memories presentist is now faced with challenges they did not formerly seem to face. Many presentist accounts of the grounding of past truths, for instance, are susceptible to conceivability arguments against their proposed truthmakers. Consider a verificationist account, for instance, on which past truths are grounded in present evidence.[3] If this account were correct then, given the current evidence, it would necessarily follow that we have exactly the past truths we in fact have. But this does not seem right. It is certainly conceivable that our universe have the evidence it in fact has yet have a completely different past (say, because God decided to miraculously make it so at this particular point in time, with no taking into account anything that came before). So it seems false that evidence is what grounds past truths since the two seem to be only contingently related.
Now, one virtue of cashing out divine memories presentism in terms of memories (as it was done in GMem1-3) was that it logically guaranteed the truth that it was the case that p – no conceivability argument was possible against it.[4] But now that we cannot specify M in GM in terms of memories, it looks like the view is probably going to be susceptible to conceivability arguments after all – it seems likely that it will indeed be conceivable that God have a state M with the content that p and yet it fail to be true that it was the case that p. Indeed, it will be conceivable precisely because of this that M is not a memory at all, since (as was already mentioned) to be a memory is at least in part to have some content that p which was formerly the case.
But if one cannot already assume that M is a memory, it is not clear there is any other way of specifying M such that it will logically guarantee the truth that p was the case. M cannot be some kind of belief or knowledge since, unless p is still true, that would imply that God knows or believes something false, which is impossible given divine infallibility. Perhaps it is a kind of perceptual state; but if such a state is to account for cases where p is presently false, it cannot be of the sort that guarantees the veridicality of its content. We cannot appeal to causal facts either, since causal facts, on a presentist view, will be partly about the past and hence in need of the same grounding as the truth that it was the case that p. Rhoda (draft), in his argument for the divine memories view, puts it this way:
This dual reference—to a predecessor state and a successor state—naturally requires our analysis of “c caused e” to quantify over both c and e. The presentist, however, will insist on placing at least one of those quantifiers within the scope of a tense operator. Thus, if “c caused e” then either e exists and it was the case that c exists, or e existed and it was then the case that c had existed.
The only way to save such attempts at typing M seems to be to regard the content of M not as p but as its having been the case that p. But once we do this, we are again faced with the same problem as that which plagued GMem2 since we are explaining its having been the case that p in terms of God having some mental state with the content of its having been the case that p. GMem2 is, in fact, just one particular instance of this class of doomed views. But if, as seems obvious now, such a way is blocked, it does not seem that any way of typing M can get out of the conceivability problem without either running into the problems faced by GMem2 or those faced by GMem3.
So once we properly formulate the divine memories view, one of the main virtues it had over other presentist views seems to evaporate. The divine memory view, as formulated in GM, seems to lack any resources to block conceivability arguments against it. It appears to be possible that God have such states and yet the past be different than it in fact was. But the only alternatives to this version seem to be versions like GMem2 and GMem3 which seem to be plainly unviable. So GM seems to be the only remaining version of the divine memories view left on the table, problems and all. But if the presence of such problems is taken to be good evidence against a version of presentism, as well it should, that means we have good reason to look elsewhere for an appropriate theory of time and persistence – either to a non-presentist view or to some presentist theory which can in fact do better. Despite whatever initial appeal it might have had, it seems then that the divine memories constitute little more than a divine memorial to the past and are simply not the presentist truthmakers some presentist-leaning theists may wish them to be. God may be ultimate or exalted and much may depend on him for its existence, but just not in this particular way in this particular case.
WORKS CITED
Bigelow, John (1996) “Presentism and Properties” in Tomberlin, James (ed.), Philosophical Perspectives 10: Metaphysics.
Bourne, Craig (2006) A Future for Presentism.
Cameron, Ross (draft) “Truthmaking for Presentists”
Craig, William Lance (2000a) The Tensed Theory of Time: A Critical Examination.
_____ (2000b) The Tenseless Theory of Time: A Critical Examination.
Crisp, Thomas (2007) “Presentism and the Grounding Objection” Noûs 41.1: 90-109.
Hartshorne, Charles (1984) Omnipotence and Other Theological Mistakes.
Keller, Simon (2004) “Presentism and Truthmaking” in Zimmerman, Dean (ed.),
Lucas, J. R. (1973) A Treatise on Time and Space.
Parsons, Josh (2005) “Truthmakers, the Past, and the Future” in Beebee and Dodd (eds.), Truthmakers: The Contemporary Debate.
Rhoda, Alan (draft) “Presentism, Truthmakers, and God”
Sider, Theodore (2003) Four Dimensionalism: An Ontology of Persistence and Time.
[1] See Bigelow 1996, Bourne 2006, Cameron draft, Craig 2000a and 2000b, Crisp 2007, Keller 2004, and
[2] For various criticisms see, for instance, Cameron draft, Sider 2003, and Rhoda draft.
[3] See, for some brief discussion, Parsons 2005.
[4] Rhoda draft says something similar in favor of the divine memories view over and against many other presentist views.
Tuesday, September 4, 2007
Self-formation, Aristotle, Augustine, and Kierkegaard
Wednesday, August 1, 2007
Divine Hiddenness and the Problem of Evil
1. People would have no choice but to believe that God exists and so would have no free will.
OR 2. People would have no choice but to follow God and so would have no free will.