| | Jordan:
Hi Nathan,
First, interestingly, this argument uses induction to invalidate induction. It reasons from SOME circumstances for which induction cannot give us quantitative or relative information* to the inference that NO circumstances can do so. The skeptic is more cunning that this. She concedes that we might arrive at a universal truth after extrapolating from circumstances, but that we lack justification for why we should accept that truth as universal.
That's just the point. The Axiom of Order posits that there IS order in the universe, not that EVERYTHING IS ORDERLY.
A consequence is that NO inductive belief can ever be "justified" and certified truth or universal. At best there will be a preponderance of apparent likelihood.
Second, it's a mistake to reason that because a precise mathematical probability cannot be calculated that NOTHING can be known about imprecise degrees of "more likely that not." Why is that a mistake?
Because the Axiom of Order assumes that order exists. Consciousness, to be conscious, MUST perceive order in at least SOME degree.
Without assuming these things, we have no basis for ANY mental activity. We have not just repudiated the notion that "induction provides NO degree of certitude," as Daniel's examples purported to demonstrate, but the whole basis for thought itself.
The Axiom of Order (Order exists.) The need for this is clear, whether as a metaphysical or an epistemological axiom. Without order, regularity, we have a universe filled with floating, formless, orderless mush.
Not exactly. First, the skeptic will argue that just because we have order today, doesn't mean we'll have it tomorrow.
Oh sure, it's awfully handy for us that the universe thus far has been pretty regular, but that's not stopping the universe from going haywire on us later.
And I would agree with the second part. But that is no less true for existence itself. We ASSUME that things will persist in the realm of existence, but due to unknown factors everything could blink out of existence tomorrow.
Second, the skeptic can question whether the regularity in our universe is the only type of regularity. Perhaps our universe could switch from one type of regularity to another overnight. That's fine. The Axiom of Order simply assumes order. That is a fitting metaphysical and epistemological assumption because both the universe and our thinking appear to exhibit order. We cannot even deny order without using order in the thoughts and sentences of denial.
Our axioms afford no guarantee. They're AXIOMS, not certificates of Eternal Guarantee with doiley-fringe patterns printed on gilded edges.
Third, the skeptic can argue that we impose order, pursuant to our conceptual faculty, on an otherwise chaotic world. This would render your "axiom" as an epistemic rather than metaphysical. The skeptic would be foolish to so argue.
Imposed order would have no predictive power in a chaotic world. The nature of our consciousness and of the universe is predictive, which leads us to conclude that the order is an objective reality.
Fourth, the Objectivist will argue that an axiom is that which is undeniably and inescapably true. As we can see from the skeptic's argument, one can successfully reject order as a necessarily ever-present attribute of existence. The Objectivist would be foolish to so argue.
First, axioms are things we ASSUME. We assume them because they APPEAR true and irreducible to components. Axioms do not come with guarantees.
Second, no rule says axiomatic facts need apply to all possible universes.
You (and plenty other philosophers) have identified a pretty important assumption required for inductive efficacy -- that the universe behaves regularly. But I don't see a solid justification for that assumption from you. I'll buy that last statement when you can demonstrate that the Axiom of Order is any less "justified" than the Axiom of Existence.
And even if you did justify it, you'd then have to explain why our little sample size of that regular (and vast) universe is sufficient basis for successful generalization. The success itself proves sufficiency (i.e., it allows conscious entities to predict circumstances with sufficient success to ensure survival).
Anyway, I think there're interesting ways to reduce (though not overcome) the problem of induction.
(A) One way is to abandon "non-advancing" theories. I tried to explain this to Laj in the other thread. Consider the two theories: (1) all ravens are black and (2) some ravens are nonblack. If ravens exist, then one of these is true, and the other false.
Consider the evidence: I see one black raven, then another, then another. Every time, thus far, that I've seen a raven, it's been black. Which theory is advanced by this evidence? I say that (1) is advanced because, thus far, it still might be the case that all ravens are black. Our evidence might've converged on the truth, even if we can't be certain of it. I say that (2) is not advanced by this evidence because it doesn't matter whether I see 5 black ravens or 5,000, I will never get closer to (2) until I actually see one nonblack raven, at which point I should, of course, adopt ... You have restated, in different words, the numerical problem Daniel cited. The problem lies in three words you use: true, false, and certain. These simply do not apply, in the way you're using them, to inductive knowledge.
Metaphysically, it is either true or not true that all ravens are black (assuming no 'shades' of black).
Epistemologically, we cannot EVER have logical certainty of the truth without a full knowledge of the raven population. (Knowledge of raven genetics and the black-producing mechanism is no help, unless we are willing to classify a white raven, defective only in pigment-producing genes, a "nonraven.")
(2). Utility suggests we abandon the dead-end theory in favor of the theory advanced by the evidence. We might be wrong about (1), but we'll get more mileage from it given our evidence. I'm not sure what you mean by this.
You might ask: why not just adopt (3) some ravens are black? This is tricky, and I don't have a super great answer for this, but here's one of the better ones. The antithesis of (3) would be (4) all ravens are nonblack. Clearly, the evidence is against (4), which means that we could safely abandon it and safely accept (3). But the problem with (3) is that it's not advanced by the evidence because it doesn't matter whether I see 5 black ravens or 5,000, it will still just be the case that some ravens are black. So while (3) is safe, it is not advanced by our evidence, and therefore is less useful than (1).
This is getting a bit convoluted. I think I'd like to work on the "raven paradox" another time.
(B) Another way to reduce (but not overcome) induction -- although I'm not sure how useful this is -- is to severely limit the universe. I think the Axiom of Order fully overcomes the "problem of induction." I think you just don't recognize that yet.
Pretend the universe is a 5 by 5 matrix (25 squares total). Let us accept that any entity, including a raven, can fill exactly and only one square in the matrix. How probable is (1) that all ravens are black? After I see one raven in the matrix, I think I can say with certainty that there's at least a 1 in 25 chance that all ravens are black. When I see a 2nd black raven, there's a 2 in 25 chance. But then something weird happens: I see a copy of Atlas Shrugged in the matrix as well. Does the existence of an Atlas Shrugged make (1) any more or less likely? In my limited universe, it does. It means we can say that there's a 2 in 24 chance of (1). Then I see a copy of The Fountainhead, which gives us a 2 in 23 chance of (1), then I see another black raven (a 3 in 23 chance of (1)), then a brown fox (a 3 in 22 chances of (1)), etc. This is weird because no matter what I observe, whether it's a raven or otherwise, so long as it's not a nonblack raven, the chances of (1) improve. This is weird (and somewhat counterintuitive, I think) because what the hell does the existence of a brown fox have to do with the proposition that all ravens are black? It's weird to say that the more brown foxes I see, the more likely it is that all ravens are black. But in a severely limited universe we gain much ground by pointing out instances of non-ravens.
The reason I'm not sure whether this is very useful is because our universe would be a friggin huge matrix and entities don't fit nicely into each square. Still, in our universe, pointing out brown foxes does get us closer to (1), but only minisculely and negligably so.
(Aside: I should note that I'm importing at least one inductive inference into my ontology: that solids can't overlap. While this inference renders (B) even less effective, I think (A) can successfully survive it.)
I think it's a mistake to apply notions of mathematical probability to the problem of induction. That kind of thinking is what creates the appearance of a dilemma where none exists. I can see several problems with what you just wrote, but don't have the time at present to unwind all that.
If you wish to simplify an objection or problem you find with my solution, one I haven't dealt with, that would be a little closer to my current agenda. I'd like to consider the raven thing another time, though.
I enjoyed your post.
Nathan Hawking
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