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Monday, January 18, 2010

Intellectual Grasp, Absence of Knowledge

Someone reached this blog by using the following search phrase: “intellectually understand but don’t know.” He or she got my post titled Understanding and Intellectual Grasp. In that post I argue the exact opposite of that situation, namely that a kind of wordless understanding is frequently present before we understand a matter intellectually. So what is the situation my visitor had in mind? He or she had in mind, I think, those situations where someone has successfully explained something at the conceptual level—but after we have “got it” we still haven’t got it; we still don’t know a thing.

A good example of this might be the explanation by modern physics of the electron supposedly circling the atomic core. We are told that the electron is “everywhere but nowhere.” It is a wave of probability. At the same time, if we wish to locate the electron we can set up an experiment to do so, and when we do, we can detect the electron (say on a photosensitive film). And this detection is then explained as the “collapse of the probability wave.” This is the sort of explanation which is intellectual graspable, but it doesn’t produce the feeling of knowledge. All we can do is repeat it to others, but we don’t really understand what we are talking about. When we seek a deeper understanding, we will be given the wave equation for starters. It looks like this:

Much of physics is of this character. The experiential base consists of experimental instruments, dial readings, and points of light on photographic film. The explanation is mathematical, the math derived from instrument readings. There is here a major disconnect between intellectual grasp and knowledge as we experience it. Okay. It is useful knowledge. We can apply it in practice in the design of electronic circuits, etc. Those circuits, however, are no more knowable in the core, in the gut, than the probability wave.

Let me now present an equally arcane counterexample where experience is involved. Let us say that you were mad enough to read the entirety of Dante’s Divine Comedy—in a version yet where the Italian text is in one column, the English translation in the other. And you arrive, at last, on the point where Beatrice, Dante’s great love, dead these many years, reappears to Dante on the portals of Paradise. She wears a dress di fiamma viva (of living flame), a green mantle over it, veiled in white, crowned with olive branches. The image shocks Dante, and he says: E lo spirito mio…d’antico amor sentì la gran potenza—And my spirit…felt the great power of the old love.

Now in this case the reader—if ever that reader has experienced genuine love, the kind we fall into, the kind we cannot help but feel, the kind that makes us remember our first love with a kind of numb and inarticulate awe—a person like that will not be puzzled by this magical appearance, by the fantastical procession that comes first, nor by the seemingly inaccessible assertion that this takes place in earthly paradise. All those concepts were at least felt to a tiny degree in our own first encounter with the magic of love. This is understanding based on experience—and later translated into intellectual concepts. The story of the electron’s sudden flash-up as its probability wave collapses—why that is intellectual grasp without understanding—unless, by a little magical trickery, we imagine that the beautiful electron, perhaps, is alike to the beautiful Beatrice, and that the wave’s collapse is like love’s crashing arrival on our own arid, sandy beach.
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Wave equation courtesy of Wikipedia. Dante reference is to Purgatory, Canto XXX, 31-33 and 40-42, translation by Charles Williams.

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