There’s the barefoot operationalism, again. This may be useful advice to an experimental physicist — if not to a superstring theorist — because all they deal with is functing anyway, whether measurable or unmeasurable. But it is just question-begging if you are trying to explain how\/why organisms feel rather than just funct.<\/p>\n
DC: <\/b>“Earlier you suggested that experience\/qualia\/feeling are measurable by the subject and reportable, but are not causal or perhaps are epiphenomenal.\u00a0 Could you…clarify this?”<\/i><\/p><\/blockquote>\n
(First, why the needless synonyms “experience\/qualia\/feeling” when feeling covers them all and is problem enough?)<\/p>\n
Second, I did not say feelings are measurable. (I think physical properties and feelings are incommensurable, and that measurement itself is physical, functional.) I said our feelings correlate with functing. We say (and feel) “ouch” when our skin is injured, not when it is stroked, or randomly; we say (and feel) a sound is louder when an acoustic amplitude increases, not when it decreases (or randomly). So the correlation is definitely there.<\/p>\n
But this does not help explain why (or how) tissue damage and acoustic amplitude change is felt, rather than functed. If our neurons simply fired faster when we were hurt, or when a sound got louder, and caused our muscles to act accordingly, but we did not feel, then we’d still have the psychophysical correlation (stimulus\/response) — including, if you like, JND by JND psychophysical scaling — but no correlated feeling. So the question naturally arises: what’s the point of the feeling?<\/p>\n
I also don’t think I am measuring anything when I feel, or report my feeling. I am simply feeling. When I say “more” or “less,” I am saying this feels like more and that feels like less. The psychophysicist is doing the measuring (not I): He is measuring what I do (R) and comparing it to the stimulus (S) and noting that they are tightly correlated. I am just saying how it feels. As I said in my reply to Arnold Trehub: apart from the S\/R correlation, there is not a separate “sentometer” to measure the feeling itself; it’s not even clear what “measuring a feeling” would mean. Nor, as I said, am *I* “measuring” what I’m feeling, in feeling it, and acting upon it. I’m just feeling it, and acting on it. And there is a tight correlation between what happens outside me (S), what I feel, and what I do (R). There better be, otherwise I would come from a long line of extinct ancestors. But the co-measurement is only between S and R, which are both functing and unproblematic. It feels as if I am drawing on feelings in order to generate my R, but how I do that is rather too problematic to be called “co-measurement” in any non-question-begging sense of measurement. So although the feeling is correlated with S and R, they are not commensurable, because the feeling is neither being measured, nor is it itself a measure, or measurement.<\/p>\n
You also seem to be misunderstanding “epiphenomenal”: Epiphenomenal does not just mean “unimportant or unmeasurable side-effects.” It means (1) an effect that is uncaused, or (2) an effect that has no effects. I am a “materialist” in that I am sure enough that feelings are caused by the brain, somehow (i.e., they are not uncaused effects (1)); I simply point out that we have no idea how<\/i> feelings are caused by the brain (and we never will). But the real puzzle is not that: the real puzzle is why feelings are caused by the brain, since feelings themselves have no effects (2). They are functional danglers, which means that they are gaps in any causal explanation.<\/p>\n
There is one and only one epiphenomenon (unless QM has a few more of its own), and that is<\/i> feeling: Caused (inexplicably) by the brain, feelings themselves (even more inexplicably) cause nothing — even though it feels as if they do.<\/p>\nDC: <\/b>“You don’t want experience to influence anything physical.\u00a0 You don’t want there to be an unmeasurable influence on any material comings and goings.” \u00a0<\/i><\/p><\/blockquote>\n
First, this has nothing to do with what I do or don’t want!<\/p>\n
Second, rather than equivocate on “experience,” can we please stick to calling it feeling!<\/p>\n
Feelings have no independent causal power, not because I don’t want them to, but because telekinetic dualism is false: there is no evidence for feelings having any causal power, and endless evidence against it.<\/p>\n
And whereas there can certainly be unmeasurable effects, one cannot invoke them by way of an explanation of something without evidence. Besides, the problem with feeling has nothing to do with measurability; it’s their very existence that is the problem. And even if they were completely uncorrelated with anything else (the way our moods sometimes are), they would still defy causal explanation.<\/p>\n
DC: <\/b>“As an example, we might consider a computer being used to control some process such as the launching of a rocket.\u00a0 One might say the computer has a causal influence over this process, albeit an epiphenomenal one.”\u00a0\u00a0<\/i><\/p><\/blockquote>\n
Why on earth would you want to say the influence was epiphenomenal? This is a perfectly garden-variety example of causal influence!<\/p>\n
DC: <\/b>“One might take the position that everything above the molecular level is epiphenomenal, and certainly philosophers have suggested exactly this.” \u00a0<\/i><\/p><\/blockquote>\n
Philosophers say the strangest things. If everything about the molecular level is “epiphenomenal,” we have lost the meaning of “epiphenomenon” altogether.<\/p>\n
And that’s just fine. I get not an epsilon more leverage on the inexplicability of how and why some functions are felt if I add that they are “epiphenomenal”!<\/p>\n
DC: <\/b>“computers, circuits or transistors are… all part of a causal chain from atomic and molecular interactions to rocket launch.” \u00a0<\/i><\/p><\/blockquote>\n
Indeed they are. No causal gaps there. It’s with feelings that you get the causal gap that lies at the heart of the explanatory gap.<\/p>\n
DC:<\/b> “you’re suggesting that experience is not part of that causal chain.\u00a0 Experience\/qualia\/feeling can not play a part in any way in this causal chain.” <\/i><\/p><\/blockquote>\n
First, can we just stick with the one term “feeling”? The proliferation of synonyms just creates a distraction, and what we need is focus, and to eliminate everything that is irrelevant.<\/p>\n
The evidence (not I) says that feelings have no independent power to cause anything. All the causal chains on which they piggy-back mysteriously are carried entirely by (unproblematic) functing.<\/p>\n
DC: <\/b>“What I don’t think you’re suggesting is that feelings are epiphenomenal in the same sense as the computer’s causal influence is epiphenomenal”<\/i><\/p><\/blockquote>\n
(1) I don’t for a minute think a computer’s causal influence is epiphenomenal. It’s causal influence is causal!<\/p>\n
(2) I would suggest forgetting about “epiphenomena” and just sticking with doing, causing and feeling.<\/p>\n
(3) All evidence is that feelings do not cause anything, even though they feel as if they do. All the causation is being done by the functing, on which the correlated feeling piggy-backs inexplicably.<\/p>\n
(4) The inability to explain feeling causally is the explanatory gap.<\/p>\n
DC:<\/b> “let’s suggest\u00a0that the experience of the color red can be reliably measured by a person.” <\/i><\/p><\/blockquote>\n
Alas we are back into ambiguity and equivocation.<\/p>\n
It feels like something to see red.<\/p>\n
The feeling is correlated with wave length (and brightness and luminosity), as psychophysics has confirmed.<\/p>\n
Persons don’t measure. They feel, and respond (R). Psychophysicists measure (S and R).<\/p>\n
S and R are reliably correlated, and since R is based on feelings, we can say feelings are reliably correlated with S too (even though, strictly speaking, S and R are commensurable, but neither is commensurable with feelings).
\nThe human subject, however, is not measuring, but feeling, and doing.<\/p>\n
DC:<\/b> “a digital camera can take light and convert it to a digital pattern which can be reconverted to wavelength using just three pixels on a computer screen.\u00a0 The intensity we observe from each pixel is interpreted and converted to color inside the brain.\u00a0 I doubt anyone would say that the experience of color exists at any step of the process between recording the color red using the camera and the reproducing of the color at a computer screen.” <\/i><\/p><\/blockquote>\n
No, the feeling (sic) of seeing color occurs in the brain of the feeling subject. Not before or after in the causal (or temporal) chain.<\/p>\n
(And why the computer? Let the stimulus be color. No need for it to be computer-generated color. If the digital-camera\/computer is used instead as an analogy for the seeing subject, rather than the stimulus, the answer is that there is no feeling in the camera or the computer.)<\/p>\n
DC:<\/b> “let’s say we had a device which could reliably measure the experience of red.\u00a0 A human is just such a device if experience reliably correlates to function\/behavior.”<\/i><\/p><\/blockquote>\n
David, with this “assumption” you have effectively begged the question and given up (or rather smuggled in) the ghost (in the machine): Until further notice, the only devices that have experiences (feeling) to “measure” are biological organisms. If you declare some other device to feel by fiat, you’re headed toward panpsychism (everything and every part and combination of everything feels) which is not only arbitrary and as improbable as telekinesis, but is probably incoherent too.<\/p>\n
No device can measure a feeling (sic); it can only measure a functional correlate of a feeling. And a human subject\u00a0feels<\/i> the feeling; he does not measure<\/i> it.<\/p>\nDC:<\/b> “Now, if this internal measurement is reliable, then let’s assume we can similarly produce this experience computationally.”<\/i><\/p><\/blockquote>\n
You’ve lost me. There is no internal measurement going on, just feeling. And it is “reliable” inasmuch as it correlates with S and R.<\/p>\n
It is of course the easiest thing in the world to replace a human — feeling, say, sound intensity — by a computer, transducing sound intensity, in such a way as to reproduce the human S\/R function.<\/p>\n
Trouble is that in so doing you have not solved the f\/f problem but simply begged the question — which is, let me remind you: How and why are we not also like that unfeeling device, transducing the input, producing a perfect S\/R function, but feeling nothing whatsoever in the process?<\/p>\n
DC:<\/b> “Let’s assume our computer’s transistors can produce this reliable correlation and report dutifully the experience has been accomplished.\u00a0If this is possible, then that computer… has physically measured the phenomenon in question and produced a physical report.” \u00a0<\/i><\/p><\/blockquote>\n
You seem to think that the f\/f problem is getting a device to produce a reliable psychophysical detection (S\/R) function: It’s not. The problem is to explain how and why we are not<\/i> just devices that produce a psychophysical detection (S\/R) function: how and why we feel whilst we funct.<\/p>\n
(And this is not about measurement, but about explaining the causal role of feeling in human functing.)<\/p>\n
DC:<\/b> “If the measurement of the experience is reliable, then that measurement can be (must be) converted to a physical signal so that it is reportable, else it is not reliable.\u00a0 So if the measurement of experience is reliably reported, then something can be done with that signal.\u00a0 The signal can be interjected into a causal chain…”<\/i><\/p><\/blockquote>\n
I’m afraid you have left the real problem long behind as you head off into this measurement operationalism that begs the question at issue, which is not about reliable “measurement” but about felt functing.<\/p>\n
DC:<\/b> “We can have an if\/then statement in our computer which says, If Xperience = RED then “SCRUB LAUNCH”.\u00a0 In this way, qualia\/experience\/feeling is interjected into the causal chain.” \u00a0<\/i><\/p><\/blockquote>\n
You really think feeling is just a matter of an if\/then statement in a computer program? Would a problem with a solution as trivial as that really have survived this long? If the physical substrate of feeling were (mirabile dictu) if\/then statements in a computation, there would still be (as with the perpetuum mobile) that niggling little problem about why the if\/then statements were felt rather than just functed…<\/p>\n
DC: <\/b>“Unless I’ve screwed up somewhere, which is entirely possible, the bottom line is that experience\/feeling can be a part of the causal chain if it is internally measurable (subjectively measurable) and as long as that measurement is reliable.” <\/i><\/p><\/blockquote>\n
I regret to say that you have indeed screwed up at a number of points, big time! I’ve tried to point them out. They begin with your operationalism about “measurability,” they continue with the equivocation on “experience” (felt experience? how\/why felt, then, rather than just functed?), and your (arbitrary) equation of feeling with “measuring,”<\/p>\n
DC: <\/b>“One might still claim this influence is epiphenomenal as I’ve defined epiphenomenal above using the rocket launch example.” \u00a0<\/i><\/p><\/blockquote>\n
As you’ve defined epiphenomenal, epiphenomenality is so common that it casts no light at all on the special case of the causal status of feeling.<\/p>\n
DC: <\/b>“We can explain everything a computer does by examining the function of each transistor and circuit.\u00a0 The experience for a computer \u00a0therefore is merely functing.<\/i><\/p><\/blockquote>\n
Here the equivocal word “experience” has even led you to saying something that is transparently false or absurd if stated in unequivocal language: “The feeling for a computer is merely function” i.e., the computer does not feel, it merely functs. (And our problem — remember? — was not computers, but *us*, ’cause we really do feel, rather than just funct, like the computer…<\/p>\n
DC: <\/b>\u00a0“Experience can not be proven to reliably correlate inside a computer, and in fact, experience is never needed to explain anything a computer does.” <\/i><\/p><\/blockquote>\n
For the simple reason that (replacing the weasel-word “experience”) the computer does not feel. (Hence we are not just computers, or like computers in that crucial respect.)<\/p>\n","protected":false},"excerpt":{"rendered":"
David, I think you have misunderstood a number of things: (1) The most important is the ontic\/epistemic distinction: Distinguish been what there really is (ontic) and what we can know about what there really is (epistemic), e.g., what we can observe or measure. Although it was fashionable for a while (though one wonders how and … <\/p>\n
Continue reading “On Measuring, Feeling, and Commensurability: (And Mind the Ontic\/Epistemic Gap!)”<\/span><\/a><\/p>\n","protected":false},"author":3074,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true},"categories":[1],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"http:\/\/generic.wordpress.soton.ac.uk\/skywritings\/wp-json\/wp\/v2\/posts\/294"}],"collection":[{"href":"http:\/\/generic.wordpress.soton.ac.uk\/skywritings\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/generic.wordpress.soton.ac.uk\/skywritings\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/generic.wordpress.soton.ac.uk\/skywritings\/wp-json\/wp\/v2\/users\/3074"}],"replies":[{"embeddable":true,"href":"http:\/\/generic.wordpress.soton.ac.uk\/skywritings\/wp-json\/wp\/v2\/comments?post=294"}],"version-history":[{"count":1,"href":"http:\/\/generic.wordpress.soton.ac.uk\/skywritings\/wp-json\/wp\/v2\/posts\/294\/revisions"}],"predecessor-version":[{"id":295,"href":"http:\/\/generic.wordpress.soton.ac.uk\/skywritings\/wp-json\/wp\/v2\/posts\/294\/revisions\/295"}],"wp:attachment":[{"href":"http:\/\/generic.wordpress.soton.ac.uk\/skywritings\/wp-json\/wp\/v2\/media?parent=294"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/generic.wordpress.soton.ac.uk\/skywritings\/wp-json\/wp\/v2\/categories?post=294"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/generic.wordpress.soton.ac.uk\/skywritings\/wp-json\/wp\/v2\/tags?post=294"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}