So I guess it's about time I respond. Sorry for the wait; I've been very busy this week.
What I meant is that at present, it must have the characteristics that it presently possesses and no others, including the capacity to act in certain ways and not in other ways. So, for example, an untanned Socrates would possess the capacity to acquire a tan when exposed to the sun for a certain period of time; he would not possess the capacity to turn blue under those same conditions. This point may seem tautological, but it needs to be emphasized, because modern philosophy has expanded the concept of “logical possibility” to include anything that one can imagine. Since I can “imagine” Socrates turning blue after 4 hours in the sun, modern philosophy says that it’s “logically possible” for him to do so -- which is nonsense.
I'm not sure if you understand my position on modality. I do not deny that under the same conditions things will act in a predictable manner (when conditions are understood as the general laws of nature). However, as I mentioned earlier, this is necessity of the consequence, not necessity simpliciter. Barring divine intervention or a sudden change in the fundamental structure of the universe, things will act predictably in accordance with their identity. In this sense, the identity of things is necessary. But this is a form of necessity ex hypothesi, not necessity simpliciter, since the existence of our universe is contingent.
We do not determine necessary and contingent truths via imagination in general. Necessary truths have this distinguishing characteristic: if they are thought or understood, they are self-evidently true. Understanding that 2 plus 2 equals 4 is all one needs to do to realize its necessity. By contrast, my understanding that when people tan, they turn brown (not blue) does not suffice to prove it necessarily true.
The law of identity would preclude this from happening, precisely because a thing must have the characteristics it possesses and no others, and Socrates does not possess the characteristic of turning blue in response to sun exposure, even though he does possess the characteristic of acquiring a tan under the same conditions.
I do not wish to challenge the law of identity. But the dividing line between essential and accidental properties is very fuzzy, and what we commonly take to be the laws of nature are not ineluctable. To illustrate the former, all we need to do is wonder whether an alligator with Socrates' brain transplanted and connected to it would in fact still be Socrates. To illustrate the latter, all we need to do is meditate upon why it is that what are widely accepted to be the laws of nature break down the closer one approaches t=0 of the Big Bang's singularity.
No, I’m not restricting its mode of action to its essential characteristic(s). Essence is an epistemological, not a metaphysical, concept. Metaphysically, an entity is all of its characteristics, not just its essential characteristic(s). For example, the essence of ice is solid water. But ice possesses other characteristics besides being a solid form of H2O. It is cold to the touch; it floats; it cools drinks, etc. I’m saying that an entity’s action is limited by its identity, and it’s identity includes all of its characteristics, not just the essential ones.
All of its characteristics aren't derivable from its identity alone, for surely how it acts on other bodies has largely to do with the laws of material interaction.
First of all, an entity’s identity is all of its characteristics, known and not yet known, including its mode of action under conditions that have yet to be discovered.
Careful, you are very near to giving up human free will. For, if one can only act in a manner conditioned by one's antecedent characteristics (brain states, physical location, causal relations), one is not free (in any real sense of the term). In short, one has no power over determining his personal characteristics, since one only can "discover" them. William: does what you are fully determine wholly what you will be in the future? If so, free will is in danger, and a fatal necessity is imputed to all human action.
Secondly, your statement that “the laws of nature could be changed such that an entity could be placed under conditions completely foreign to those permitted by our own universe” is simply false. In fact, it’s a contradiction in terms. If they’re not permitted by our own universe – i.e., by existence – then they’re not permitted period.
All scientists should be required to study the foundations of mathematics and logic. Such study would disabuse them of the philosphically annoying habit of inferring necessary truths from actual ones. First, show me that the laws of nature are necessary. Show me that Newton's law of gravitation enjoys the same sort of necessity that Euclid's theorems do. You can't, because it doesn't. Existence is nothing more than actualized essence. Believing anything else is an exercise in dogmatism.
You state that the conditions are inconceivable. Well, if they’re inconceivable, then on what grounds do you claim to be conceiving of them? If your point is simply that an entity will act differently under different conditions, then I agree, but its mode of action is still limited by what its nature permits it to do under those conditions.
Pardon, I meant to say indeterminable, not inconceivable, from the perspective of our universe.
“This universe” is all there is. “Universe” refers to what is universal – to everything that exists. Another universe is not logically possible, any more than it’s logically possible for water to freeze at 212 degrees Fahrenheit. What is logically possible to existence depends on the entities that it comprises, to which the only actions logically possible are those consistent with their natures.
Wrong. A universe with different 'universal' laws of nature would be a different universe by definition. Moreover, a cat in another universe might take on what appear to be inattainable properties from the perspective of our uinverse.
Well, I reject the notion that the universe is contingent. Contingent on what? There is nothing for the universe or existence to be contingent on. Existence is all there is.
Contingent in that the reason for its existing is not present in itself. Mathematical truths are necessary because their truth becomes self-evident through analysis. Not so with the universe.
And even if other things in existence were different, a thing would still be what it is. It may respond differently to different conditions, but that’s because it would be part of its nature to do so.
If entities acting under universal laws began to shave away Plank-length slices from a table, at what point would it cease to be the table? At what point would its "nature" alter? Your metaphysical theory is fraught with difficulties such as this.
By the way, to say “fundamental” identity is redundant. There is no fundamental versus non-fundamental identity. There is only identity, because a thing simply is what it is.
We cannot have access to the fundamental identity of things. Such is the price of being less than omniscient. The distinction is warranted, since whatever we know about an existent will be knowledge of non-fundamental identity.
I wrote:
"Faith is intellectual assent, whereas hard evidence is what influences intellectual assent. You speak as though faith merely means 'the absence of evidence', such that faith and hard evidence compose a disjunction. But this is simply not how I'm employing the word. Indeed, though you might often hear people say, 'He had no evidence; he took it on faith', this is not the way I use the word. What I mean by 'faith' is 'intellectual assent' or 'belief'."
William responded:
Well, then your use of it, especially in the context of our discussion, is misleading, as I’m sure you were aware that it would be.
It is not my fault that you are not familiar with traditional Christian epistemology.
You don’t perceive your perceptions; you perceive the object of your perceptions, and are aware of the world directly, not via a representation of it. If you were aware only of a representation of it, then you couldn’t know that what you are aware of is a true representation, since you’d have no independent verification that that what you are aware of corresponds to the external world.
This is dogmatism. Brain states-- neuronal relationships--are what influence (either by interaction or by divine pre-established harmony) mental states. Sensations are drawn from the world, sure, but these sensations are represented to the mind; the mind is not directly aware of the world: "I'm sorry, it's science" (a memorable quote from Anchorman). Yes, if you were only aware of a representation of it, you couldn't know directly that what you are aware of is a true representation. But you could believe in the truth of these representations. Ah, rational belief, a wonderful antidote to skepticism, isn't it? ;)
I wrote:
“In my opinion, the tabula rasa understanding of the human mind is both philosophically and scientifically repugnant. Philosophically, the idea is without merit, since it somehow maintains that necessary truths like 1+1=2 and the absurdity of the conjunction A^~A can be deduced from particular representative examples."
William responded:
Not deduced; induced. 1+1=2 and the laws of logic are arrived at inductively, not deductively. For instance, in order to grasp the proposition that “One plus one equals two,” one must first have formed its constituent concepts.
I said "deduced" to highlight the absurdity of trying to get to necessary truths by beginning from particular examples. After how many examples does the truth become necessary? 100,000,000? Or ought we to say that the necessary truth is a priori? (Hint: Yes.)
How does one form the concepts “one” and “two”? In the same way that one forms any other concept -- by observing various instances of the concept’s units and then abstracting their common feature – i.e., by observing that certain things bear a greater similarity to each other than they do to certain other thing(s) from which they’re being differentiated. In other words, one forms a concept by identifying similarity against a background of difference.
We think in terms of concepts, not in terms of the 'things out there'. Our mind is not just a wax tablet on which sense-impressions get impressed. Rather, our mind conceptually organizes sensory information before they become present to us as impressions. Such is the reason behind our experiencing 3 dimensions, not 2 dimensions with shadow and highly variant shape. Furthermore, if all concepts are formed by abstracting from sense-impression, from where does the concept of a concept come?
For example, one forms the concept ‘fruit’ by observing that (say) an apple and an orange bear a greater similarity to each other than either does to a carrot or a beet. Similarly, one forms the concept ‘apple’ by observing that two different apples (say a MacIntosh and a Pippin) bear a greater similarity to each other than either does to an orange or a pear.
Assuredly, because concepts like 'fruit' are not a priori.
The same principle applies in forming the concept of a particular number (say, two). One observes that a group of two oranges and a group of two apples, say, bear a greater numerical similarity to each other than either does to a group of three oranges or to a group of four apples. In so doing, one isolates what the groups of two have in common as against the other groups, and thereby forms the abstraction ‘two’, which one then designates by the visual-auditory symbol “two” or “2.” The same principle of concept formation pertains to numerical concepts as to any other concept.
Look closely at what you just said. You began with the intention of describing how it is that we form the concept of two. Then you say, "One observes that a group of two oranges..." Whoa. You've employed the concept to account for it, which looks circular. I have a question, how does one ever differentiate the two apples into 2 without recourse to the concept of 2? Again, it looks as though we have good reason to suppose that mathematical concepts are innate, especially if a person trying to argue against their being innate unintentionally proves their innateness.
The laws of logic are also discovered by observing reality – by observing that existence itself is non-contradictory – that existence itself possesses identity.
No, the laws of logic are not discovered by observing 'reality' (if reality be understood as that which is outside us), at least not in an essential sense. They are discovered by introspection-- thinking about how we think--and realizing that we can't think against the basic laws of logic. And once we realize this, we realize their necessity.
We cannot think contradictory propositions, because we see that a thing cannot have at once and not have the same character; and the so-called necessity of thought is really the apprehension of a necessity in the being of things.
I agree with Joseph, but he's got it backwards. One cannot apprehend necessity in the being of things, if the being of things is understood merely as that which is given through the senses. For the perception of the being of things conforms itself to a necessity of thought, and the necessity of thought comes from the necessity of truth, and this is found whole and entire in the Mind of God.
The Law of Contradiction then is metaphysical or ontological. So also is the Law of Identity. It is because what is must be determinately what it is, that I must so think.
The Law of Contradiction is metaphysical, ontological, and epistemic. Our thoughts are distinct from our encounters with 'what is'. Descartes showed that every person can prove his own existence through the contemplation of the implications of one's own thought. But, n.b., one can only prove one's own existence in such a fashion during this introspective process.
I wrote:
"It makes much more sense to say that geometrical, mathematical, and logical truths exist latently in the human mind, and that experience is what triggers our awareness of them."
William responded:
Experience doesn’t “trigger” our awareness of them. Experience makes us aware of them.
Please give an account of how experience "makes us aware of them". Can experiences speak? What is it that analyzes experiences? Surely necessary truth does not come from experience alone. But if the recognition of necessary truth does not come from experience alone, it must come from the mind's meditation upon it, for necessary truths can only come to us via conceptual analysis (since concepts are universals).
What these studies show is that the mind has a certain innate capacity to grasp and conceptualize reality. They have not shown the presence of innate ideas -- ideas about reality that exist in the mind prior to any cognitive contact with reality.
You seem to be tied down by a sort of intransigent idea that "reality" is only 'out there', and that we only really perceive things 'out there'. But this is false, and we can imagine that an infant in a womb experiences some kind of subconsious apperception (i.e. self-awareness of his/her own state of mind). Advances in neuroscience have shown that fetuses experience neuronal activity. Now, of course an infant is liable to sensation within the womb, but the point is that, even in such a state of experiential darkness, the first forms of thought are taking place, and these thoughts are introspective.
I wrote:
"If you believe the mind to be tabula rasa, you are forced to admit this. But tabula rasa seems dubious at best. Furthermore, I find that, even if your principle could be true for us, it could not be true for God. For God is not a composite of mind and body, but is rather pure consciousness, such that his self-awareness is immediate and timeless. Indeed, God's understanding is his being, whereas our understanding is derivative of our being. There is no 'external world' for God, since God is immediately present to all things as a cause is to its effect."
William replied:
You are employing what Objectivists would term a “floating abstraction” – an abstraction that is not anchored to anything in reality. Your notion of ‘God’ as pure consciousness isn’t based on any concrete aspect of the real world. You are taking a concept, which you arrived at only by observing conscious organisms, divesting it of its basis in reality and then treating it as if it existed in the real world as a pure abstraction. This is no different in principle from claiming that there is in reality such a thing as “pure” two – not two oranges, two pencils or two people, but just two by itself. It’s as if I had said that I have two in my pocket, and you asked two what, to which I replied, “two nothing, just plain two.” Well, of course, that’s nonsense, but it’s no different if you declare the existence of a “pure” consciousness. The same principle applies. The concept of a pure consciousness is meaningless, because consciousness requires a concrete basis in reality, in the absence of which the concept makes no sense.
First and foremost, I've never observed any consciousness other than my own. To observe another consciousness is impossible. (Refer to Nagel: What is it like to be a bat?) So, I obviously didn't arrive at a concept of consciousness by "observing conscious organisms". Now, as to your suggestion that there cannot be a "pure" two, I ask you to provide an account of how we are to discern two entities in the first place without recourse to the concept. Moreover, I petition you to show me how speaking of God's consciousness as "pure consciousness" is to entail that God is not anchored in reality. If you remember from what I've said in the past, I've attributed all positive reality (limitations excepted) to God. This ought to be adequate grounding for His consciousness, which is, as I've said again and again, not to be confounded with any sort of human consciousness.
Again, our perceptions don’t represent reality; they’re of reality. You still haven’t grasped the difference.
I've grasped the difference. But you seem to think that our eyes and other sensory faculties are like windows through which we "see" what is out there-- a position which runs contrary to the findings of brain science.
I wrote:
Indeed, imaginary could just mean 'at variance with what is perceived to be real'.
William responded:
You’re committing the same error, without realizing it. “Perceived to be real” itself presupposes the concept of reality, because it makes a distinction between what is perceived to be real and what is actually real.
Of course it presupposes the concept of reality. But the point is that reality may not be something to which we have direct access. It may be that our perceptions (which we believe to correspond with something 'out there' that is perceived) are in fact illusory, e.g. created through an artificial brain stimulation.
You’re not getting my argument; at least your not addressing it. My point is simply that in order to conceive of the possibility of being a brain in a vat, you must assume the ability to identify an objective reality, in contrast to which you can then identify an illusion. An illusion is a state of consciousness that is unlike a perception of the real world, which, by definition, is what I am now experiencing. But if what I’m now experiencing is the real world, then I couldn’t possibly be a brain in a vat.
I think it rather the case that you are not getting my point, which is really quite simple. All I'm saying is that what we perceive may be at variance with what is, in actuality, 'out there' (whatever that may be). Now, you say that I need to have some notion of reality in order to conceive of an illusion. This is not true, for though I can construct a notion of "reality", and then imagine an illusion, I can also imagine that what I take to be "reality" might actually be an illusion in the same sense of the imagined illusion that is abstracted from what I take to be "reality." That is, from the concept of "illusion" I take from "reality", I can question whether or not the "reality" from which I derived "illusion" is not also an "illusion", and perhaps beneath that illusion there is yet another, etc. So the illusionary chain can stretch almost infinitely far back before it terminates in something 'real'.
[A] the person exhibits conscious behavior, not conscious-like behavior. His behavior isn’t simply conscious-like; it is conscious. How do we know? We can infer it from his behavior.
Right, but this isn't a logical inference. It isn't necessary that an entity exhibiting conscious-like behavior be conscious.
I wrote: "How are we to know persons are actually conscious?"
William responded:
From their behavior. How am I to know that I’m actually communicating with you in my dialogue? By your words, which reflect a comprehension of what I am saying. I can infer from that that I am dealing with another mind.
Again, conclusion-begging. I could just be a very well-programmed computer that knows what symbols to spit out when certain symbols are presented to it.
We can only be aware of our own consciousness introspectively, but we can be aware of other people’s consciousnesses extrospectively, via their behavior.
I do not doubt that other people are conscious. But, epistemically speaking, it cannot be proven that other people are conscious. Descartes' cogito argument works only for individuals contemplating their own thoughts.
What reason do you have to think that other people are nothing but programmed computers? None whatsoever.
This isn't about evidentialism, it's about knowledge. And, since you want to push out the notion of belief from your epistemology, you are committed to the idea that knowledge is infallible, which means that you can't settle for merely weighing the evidence, because then belief would have to step in to settle the choice. No, you must present proof.
Programmed computers are not biological offspring. To be sure, if I had some reason to think that the responses I'm getting are not from a real person, as I do when I call a business and get computerized response that is programmed to answer my questions, then I have some basis for concluding that I am not or may not be interacting with another consciousness. But absent such evidence, I would have no reason to draw that conclusion.
I'd like proof that I am conscious (from your perspective), please.
Well, then it’s conclusion-begging to infer that if I jump off a tall building, I’ll fall to my death. The only reason I know that is through a causal inference; I don’t know it from direct experience. To know it from direct experience, I would actually have to jump off the building and experience falling, and even then I wouldn’t know from direct experience that I would die, because I can’t experience being dead. I could know that I would die only through a process of causal inference. Is that conclusion begging too? I don’t think so.
The analogy fails, because while we can justly conclude that people die when they jump off of buildings (from our seeing them do this, from the law of gravity, etc.), we cannot so easily conclude that other people are conscious. For the analogy to work, it would be required that we see consciousnesses in the same way that we see falling bodies. But this is not the case.
What I meant is you cannot know for certain that you will be alive tomorrow. In other words, how do you know that the proposition "I will be alive tomorrow" is actually true? You don't. So my point was that it is a mistake to "accept" it as actually true, since you have no grounds for accepting that conclusion. The most you can know as being actually true is the proposition that "It is very likely that you will be alive tomorrow."
This doesn't answer the question. If someone were to ask me, "Do you believe you'll be alive tomorrow?" I would answer, "Yes." I would not answer, "I believe it is very likely that I will be alive tomorrow," since this doesn't answer the question. The question is obviously not about the probability of my being alive tomorrow, but rather about whether I will be alive tomorrow. And to the question of whether, there are only three possible answers: 'yes', 'no', and 'undecided'. The 'undecided' option is really quite impractical, and could in fact endanger marriages and friendships. For instance, consider if my future wife (that is, if I don't become a priest) were to ask: "Do you love me?" And I responded, "Judging from your behavior, there is a high probability that you love me." And she pressed, "What if you had to choose whether or not I really do love you." And I responded, "I can't choose, because based on inconclusive evidence I must withhold judgment." I would be sleeping in the garage for a few weeks, I assure you, as punishment for pedantry. The point: Life presents us with situations in which we ought to form committed beliefs about objective uncertainties.
It’s not possible for the universe not to have existed.
So it's necessary that the universe exist, is what you're saying. And I'm asking, "Why?" It's certainly not demonstrably necessary, as mathematical truths are.
Possibility refers only to the actions of already existing entities.
An unsupportable assertion.
Given the existence of the universe, one can talk about what is possible to the entities composing it, but what is possible to the entities composing it is a function of their respective identities, which necessitate a certain course of action and no other. They must act according to their natures; they cannot act otherwise.
I agree with this. This is called necessity of the consequence.
When I said that it is not logically possible for men to fly, I was clearly referring to our present environment, which would include the earth’s gravitation, a medium of air and so on. Obviously, in zero gravity, it would be possible for men to fly. Is that the kind of thing you are talking about?
Yes, that is the kind of thing I am talking about, though I also think it possible that men could be made to fly by being so moved through the action of God. Of course, in this case, they wouldn't be flying according to their nature, but rather according to the intervention of God.
I wrote:
"Catholics take it as a maxim that obeying God's commandments will always be in our (at least long-term) self-interest."
William replied:
Well, sure, if you assume that God will reward you for following them and/or punish you for not following them. But that assumes the existence of an afterlife. I was talking about our present earthly existence. Since there is no evidence for an afterlife, any more than there is for God’s existence, it makes no sense to sacrifice your actual life for the sake of an existence beyond the grave.
I would dispute the fact that there is no evidence for an afterlife or for God's existence, but let's place that to one side. It makes much more sense for me to respond to the question of whether it is worth living according to the belief that God and afterlife exist, even if they do not in fact exist. I'm glad you brought up this question. My belief is that the virtuous and faithful life is ultimately the most fulfilling, even if what incites it to action-- a love of God-- is shown to have no actual object. You'll remember that Socrates was willing to stake his whole life on the "if" of immortality, and that his was one of the most noble lives, motivated wholly by the pursuit of truth and goodness. He died thinking that he would "have life more abundantly", as the Phaedo reports. But what if he just decomposed? Well...what if he did? What if we all do? In that case, I don't think it really matters how we live, because all our lives, without exception, end in decomposition. Surely, it might be desirable to live, to move, to learn, to have children, etc., but in the end we must believe that everything we do here comes to naught. And I do not want to build my life around that belief. I'd rather not live thinking that behind every human face there is inevitably a skeleton buried in dirt, that every new insight into our universe is to be just another discovery that we'll inevitably have to surrender to nothingness, that every single action I do here is destined to be counted as nothing once humanity dies out, and our sun, and our universe.
Placing the interests of God above your own selfishness is self-defeating, if there is no God or life after death. And since there isn't any God or life after death, following Christian dogma and obeying God’s commandments is against your self-interest. And that, in the final analysis, IS suicidal.
On your view, it's all suicidal in the final analysis.
The human mortality rate may be 100%, but that doesn't mean that one shouldn't promote one’s survival to the best of one’s ability and try to extend one's quality of life for as long as possible...
If nothing that you do while you live ultimately matters (and it doesn't, from the perspective of atheism and cosmological inevitability), why live? I mean, I don't mean to depress you, but I find your worldview insipid and wholly uninspiring.
As for the universe tending toward a heat-death, perhaps in its present form it is, but existence qua existence cannot self-destruct. The universe will simply take a different form.
Right, and this form will be a dead form, with no more energy to sustain activity or life. As G.K. Chesterton once said of Nietzsche's thought, he "scales staggering mountains, but he turns up ultimately in Tibet."
(Edited by Gottfried Wilhelm Leibniz on 2/25, 10:16am)
|