Lewis's premise is that reasoning admits of only one description. He could have claimed that other accounts leave out what he's interested in, that they miss the reasoning in an act of reasoning and treat it like any other psychological or biological event. Instead he claims that no such description is even possible, and that nothing that could be so described and explained could be what he considers reasoning.
The question is, why would he think that? And it looks like the answer is: theology. — Srap Tasmaner
That's an interesting way of looking at it. Richard Rorty says something like truth is what communities of shared understanding describe it to be. In other words, reality is a case of intersubjective agreement, not an external certainty.
Do you share some of the post-structuralist views on language and truth? — Tom Storm
The simplest reason is that it's intentional, and intentionality is lacking in physical causation. — Wayfarer
But the argument from reason is about physicalism - that everything about the mind can be reduced to or explained in terms of physical causes. — Wayfarer
If we suppose that there no realist notion of language, what is it that language does when we attempt to describe reality? (I've generally held that language is metaphorical, but then what?) — Tom Storm
If you are convinced that there are twelve categories, then you should be able to articulate the proof that convinced you. — Bob Ross
And BTW, I'm a bit stoned, and suspect that was awfully disorganized and stream of consciousness, but I'm a bit stoned. — wonderer1
. It's a biological theory, but the view that it accounts for everything about human nature and the human condition is biological reductionism (whereas I would say that we're 'underdetermined' by biological factors). — Wayfarer
No, the study of civilization, which includes evolution, is also the study about the intelligence of humans over epochs. What Janus might be referring to is the study of logic, which is a modern development. The "capacity for reason", as civilization reveals, is actually the capacity to use tools, for example. — L'éléphant
I still say it's a mistake to say conceive of reason as result of evolutionary biology, because it reduces reason to mere adaptation. — Wayfarer
As you point out, logic itself is not necessarily descriptive of the world of experience - something can be logically true but physically impossible, and things happen which defy logic. The argument from reason is not presenting reason as a panacea or magic bullet, but as an indispensable faculty which can't be explained in physicalist terms (among other things. — Wayfarer
It's the old Indian elephant parable; that we've only ever got a grasp of some aspect of the elephant, its tail or its ear or tusk and we form conclusions on that basis. Reality, or rather, Being, is infinitely vast, and coming to an understanding exceedingly difficult. — Wayfarer
That's subjectivism and relativism. It's obvious that, for example, in the American political scene, there is a huge polarization, but it's no coincidence that a large part of the cause of this is a leading political figure who quite openly tells enormous lies which large numbers of the electorate are willing to swallow. Surely a political scientist or pollster can come up with reasons why they do that, but it doesn't change the fact that they're believing lies, and that they are lies, regardless of anyone's opinion. — Wayfarer
Say if I do persuade you to believe any proposition whatever - not necessarily this one - where you agree that you 'see the point' of the argument - how can that be understood in any terms other than rational persuasion? — Wayfarer
No, that's scientific materialism. It is not the same thing. It mainly comes from the attempt to apply scientific methodology to philosophical problems, as a few here are doing. — Wayfarer
Surely this does at least suggest 'a transcendent realm accessible to the wise'? — Wayfarer
I would add to what you said above, that we can learn from the study of applications of Artificial Neural Nets (ANNs), to improve the effectiveness with which we use our brains. A key consideration with ANNs is the training set, or the set of inputs that were involved in an ANN learning whatever it learned. Analogously, we can consider the size and scope of the training set that went into the deep learning underlying our intuitions, and consider whether our intuitions are likely to be trustworthy or untrustworthy under whatever the present circumstances are. In doing so we might recognize a benefit to increasing the size and/or scope of our training sets, and improve the training of our neural nets, resulting in an improvement to the reliability to our intuitions in the future. — wonderer1
It is the subject of the OP, and the basis for an argument. — Wayfarer
All of which is quite irrelevant if you were doing an actual exercise in logic. But rationally-inferred propositions aren't a matter of belief at all - the hackneyed example I gave of 'if X>Y and A>X then X>Y' is not dependent on belief nor a matter of belief or sentiment. — Wayfarer
I spend a lot of time in 'provisional credence' country. I hear alarm bells when people say they know something to be certain. — Tom Storm
Right. Going with intuition is relying on the deep learning which has occurred in neural nets between our ears. — wonderer1
So, yes, I broadly agree with what you posted, Janus, but I reserve a bit of Humean horror that the foundations of my rationality are not themselves rational. — Srap Tasmaner
I think it does, because the only way a thing a representation can be invariant is if either (1) the mind of which it is produced simply fabricates it as such, or (2) the object of which it is representing (which is a thing-in-itself) is invariant. There’s no other options by my lights. — Bob Ross
I think, given what I said above, it is an inconsistency. Either the mind’s representative faculty cause the invariance, or the things-in-themselves which are being represented do: there’s no third option. So to make a claim like “we can know phenomenal invariance but nothing about the things-in-themselves”, to me, is claiming a third option that can’t exist. — Bob Ross
How do we build principles that assist in achieving this for all? Even the notion of 'for all' is an axiom, since we know of people who think that the circle of moral concern should only encompass the types of peeps they recognize as citizens. — Tom Storm
I tend to agree with this. If only for the fact that most metaphysical views or scientific theories make no difference to how I live my life or what choices I make. — Tom Storm
And here’s the problem: you can’t say that things-in-themselves cannot be thought of as knowably having object permanence and then turn around and say that the phenomena suggests that the things-in-themselves have object permanence. The phenomena do not suggest anything about the things-in-themselves under Kantianism. Period. — Bob Ross
except in the sense that whatever it is that appears to us as invariant objects does so reliably, which suggests, but doesn't prove, that the in itself is invariant
And here’s the problem: you can’t say that things-in-themselves cannot be thought of as knowably having object permanence and then turn around and say that the phenomena suggests that the things-in-themselves have object permanence. The phenomena do not suggest anything about the things-in-themselves under Kantianism. Period. — Bob Ross
Would you say that we, then, get indirect knowledge of the things-in-themselves? I think that none of the above (that you said) is compatible with Kantianism, but I personally agree with you. Kant argues adamantly that we have absolutely no clue what the things-in-themselves are—not even a reverse engineering of the phenomena. See:
We have intended, then, to say that all our intuition is nothing but the representation of phenomena; that the things we intuite, are not in themselves the same as our representations of them in intuition, nor are their relations in themselves so constituted as they appear to us; and that if we take away the subject, or even only the subjective constitution of our senses in general, then not only the nature and relations of objects in space and time, but even space and time themselves disappear; and that these, as phenomena, cannot exist in themselves, but only in us – CPR
Perhaps you can be a neo-Kantian, but you are clearly contradicting Kant here. — Bob Ross
Janus, you are conceding here that you can, at the very least, get at what is suggested of the things-in-themselves via the phenomena, which is clearly not compatible with Kantianism (in its original formulation). I personally agree with you, but then you can’t turn around and claim, like a Kantian would (which was my whole point originally with Mww), that we can’t do metaphysics beyond transcendental philosophy. Your argument for object invariance here is exactly that: a metaphysical claim pertaining to the things-in-themselves. — Bob Ross
“noumenal invariance” and “object invariance” are the same thing: they are both a metaphysical claim about the same things-in-themselves. By definition (of “object invariance”), we are talking about whatever persists beyond your phenomenal experience and is thusly non-phenomenal (i.e., noumenal). — Bob Ross
Are we still agreed? — Srap Tasmaner
