Could an Impression Be a Process?

139. COULD AN IMPRESSION BE A PROCESS? Processes are of two main kinds, depending on whether the process has or lacks culmination. I am concerned with non-culminating processes, e.g. , with a burning fuse sans explosion. This is reported as secondary by any good dictionary, derived from the head, or culminating, sense of 'process'. An ontological criterion for 'process' is as follows: something is absolutely unchanging, if it is unchanging in every sense of the word. Those who hold that, e.g. , a monotonous sound is absolutely unchanging hold that in an absolutely unchanging universe there is no reason why there should not be such a sound. Like any absolutely unchanging existent, a sound is caught, so to speak, in an instantaneous freeze on all change. Those who opt for process hold that change is, so to speak, of its essence. Hence, in an absolutely unchanging world, there could not be a process. The question I wish to raise is not whether there are processes, and certainly not whether Hume opts for processes. It is doubtful that Hume entertained the question of process. Indeed, that is the point. One of Hume's main commentators, R. W. Church, holds that Hume's perceptual atoms, defined by his dictum that distinguishability mutually entails separability, as well as their philosophical relations, are incompatible with the thesis that "experiences exist not in succession but in process." Church goes on to say that it is "difficult to see how . . . 'process' can have meaning for Hume. He plainly holds perceptions and their contents to be successive merely. I begin by considering Church's reason why Hume must reject processes, and then consider an additional reason drawn from Hume's account of time. Specifically, 140. divisibility òf time terminates in unchanging atoms. The essence of process is change. Hence, no temporal atom is a process. Neither reason, I argue, suffices for holding that impressions and processes are mutually exclusive. Hume holds that distinguishability mutually entails separability. Church holds that this dictum defines Hume's perceptual atomism. To highlight the atomism it is supposed to define, he rewords it, as follows: "Whatever is distinguishable is intrinsically self-identical and therefore self-contained." What does this rewording mean? According to Church, Hume, in the body of the Treatise, holds that resemblance is qualitative identity distributed, numerically, over many complexes. "On Hume's theory of abstract ideas, 'resemblance' is a verbal term referring (in virtue of habits of association) to any case of a qualitative 4 identity numerically distributed." Further, the qualitative identity in question is not relative to any difference from another quality, Bradley to the contrary notwithstanding. Difference, for Hume, is incompatible with relation and it is itself not a relation. It follows, according to Church, that Hume's absolute self-identity mutually entails self -containment. So much for Church's version of Hume's perceptual atomism. Is it incompatible with process, as Church claims? A trombone's slide illustrates non-culminating process with succession. Let us use it as a basis for an account. A trombone's slide is unbroken not only qua sound but qua pitch. Nevertheless, it incorporates pitch multiplicity. By "successive merely" does Church mean that the transition from pitch to pitch must be broken, contrary to what is heard, and, for this reason, Hume cannot account for the slide qua process? If so, he is mistaken. 141. Distinguishability mutually entails separability for Hume, but this does not mean that the transition from pitch to pitch cannot be experienced as a slide. In fact, it is easy to show that a trombone's slide conforms to Hume's dictum, by reason of the just noticeable difference and Hume's philosophical relation of contiguity in time. We are dealing with three notions: first, distinction, and, in particular, how pitches in the slide are distinguished. Second, separability, and, in particular , how separation corresponding to distinction is guaranteed by the fact of process. Third, slide, and, in particular how Hume's philosophical relation of temporal contiguity, coupled with the just noticeable difference, guarantees phenomenal slide. I take up these three notions in the order mentioned. The distinction between two pitches in the trombone's slide is...