Little Catastrophes: The Topological Structure of Humor and Haiku

First published in Under the Bashō on 3 June 2016. Originally written in April of 1994, and tinkered with in 1995, 1999, 2007–2009, and 2014–2016. New here are the last half of the paragraph beginning with “As for the understanding of jokes” (“To give an example” to the end) and postscripts #6 and later, among a few other minor changes. In some ways, the leap or implication in the topological structure of haiku presented here relies on and relates to the Japanese concept of “ma” 間, or space.       +       +       +       +       +       +

“The union of the mathematician with the poet, fervor with measure, passion with correctness, this surely is the ideal.”

—William James, Collected Essays and Reviews

“Mathematics and Poetry are . . . the utterance of the same power of imagination, only that in the one case it is addressed to the head, in the other, to the heart.” —Thomas Hill

“I think a lot of scientists are secret poets. The modes of exploration are quite similar, and the physical embodiment of discovery feels the same, too. That surprise and delight of discovery is something that poets and scientists share.” —Kate Greene       +

Laughter is the reconciliation of yes and no.—George Gurdjieff (paraphrased)

“Science is not omniscient, nor is it omnipotent, and there will always be room enough for haiku.” —D. T. Suzuki


In 1988 Professor John Allen Paulos of Temple University published a best-selling book called Innumeracy (New York: Hill and Wang). His overriding concern was to draw attention to the fear and misunderstanding of numbers and mathematics in modern American culture—and to emphasize the unfortunate consequences brought on by mathematical illiteracy. He is probably best known for this book. In an earlier book, titled Mathematics and Humor (Chicago: University of Chicago Press, 1980; all page references to this edition), Paulos asserts a three-dimensional model for the structure, development, and understanding of jokes and humor. Numbers and things mathematical may seem far removed from the ken of haiku—except perhaps for the counting of syllables, if one is so inclined. Yet the structural development within many haiku bears a demonstrable resemblance to the mathematical model that Paulos employs to reveal the methodology of humor. Indeed, the structure of jokes and the realization of humor hold many similarities with the structure of haiku and the “aha” moment that releases this small poem’s reverberations. Haiku poets have realized this similarity on an intuitive level for many years, but through Mathematics and Humor it is possible to review the subject in significant detail. With a close study of Paulos’s book, haiku poets might readily recognize the parallels in this model to the moment of heightened awareness in haiku.

Critical Assessments of Humor

Before exploring this mathematical model as an aid to understanding haiku’s structure and development, it is helpful to know Paulos’s application of the model to humor. In prelude, however, Paulos reviews a short history of the various critical assessments and classifications of humor. Many of these observations also hold true of haiku. William Hazlitt, for example, stated in 1819 that “the essence of the laughable is the incongruous” (3). Even as far back as the ancient Greeks, Aristotle proposed that the mark of a poet was to see a connection between apparently incongruous things. Given haiku’s common technique of juxtaposition—which sometimes leads to incongruity—it is no wonder haiku shares similarities with humor. Hazlitt also described humor as “the disconnecting of one idea from another, or the jostling of one feeling against another” (3). He could easily have been talking about haiku. Other philosophers and critics have emphasized the surprise and the unexpectedness in the incongruity of humor—and again this is part of what makes haiku work. Specifically, in 1790, Kant proposed that “Laughter is an affectation arising from the sudden transformation of a strained expectation into nothing” (3). Is this, perchance, the nothingness of Zen? In 1818 Schopenhauer wrote of humor that it “often occurs [when] two or more real objects are thought through one concept; it then becomes strikingly apparent from the entire difference of the objects in other respects, that the concept was only applicable to them from a one-sided point of view” (3). While haiku usually seek to present a unity that does not come apart, certainly humor shares with haiku at least that initial unity. That two objects could be thought at first similar in humor is akin to the technique of internal comparison in haiku. Yet perspective is also essential to haiku, intrinsic to the poet’s voice. In humor that perspective or one-sided point of view is intentionally flawed or absurd, but in haiku it takes observation and juxtaposition beyond the merely playful to hint at profound wholeness. Herbert Spencer observed that laughter can occur “when consciousness is unawares transferred from great things to small” (4)—which is exactly the focus of haiku, enabling readers to notice small and intimate details. No wonder an appropriate response to the sudden awareness found through haiku is a knowing smile, a quick chuckle, or perhaps a laugh, even if the haiku itself is not intentionally “funny.”

        The “incongruity theory” of humor has been emphasized by critics into the nineteenth and twentieth centuries. Baudelaire expanded on the idea by saying that laughter “is at once a token of an infinite grandeur and an infinite misery,” going on to say that “it is from the perpetual collision of these two infinities that laughter is struck” (5). Indeed, haiku makes an effective “approach to infinity”—the infinite now—by focusing on small objects or brief events.

        Central to all humor, of course, is an innate playfulness. Here again humor shares a similarity with haiku, for even the word “haiku” in Japanese means “playful verse.” The writer Max Eastman emphasized this idea of playfulness in developing his “derailment theory” of humor in 1936. He suggested that some humor takes unpleasant topics and intentionally derails our negative emotions toward them by making light of them or observing the humor within them. In January of 1994 the Los Angeles area suffered a devastating 6.8-magnitude earthquake that killed 61 people and caused over $20 billion in damage. That same month, Midwestern Americans were suffering through one of the most consistently cold and snowy winters on record. Lee Gurga wrote to me at that time and shared an amusing “catastrophe” theory: He said that the L.A. quake was caused by all the Midwesterners shivering. Furthermore, one can judge the depth of emotion in response to a tragedy by noting how long it takes for jokes about it to begin circulating—if at all. For example, how long did it take for jokes about the death of Princess Diana to appear? Likewise, it took a very long time for jokes about September 11 to surface, and they still make many people feel uncomfortable. Rather than belittle the tragedy, such jokes derail our negative emotions and help us recover emotionally.

        By the means of derailment, humor helps to disengage readers from what is unpleasant. In contrast, haiku usually seeks to engage rather than detach the reader from life (see Paul O. Williams’ article, “Engagement and Detachment in Haiku and Senryu” in Woodnotes #19, Winter, 1993, reprinted in The Nick of Time: Essays on Haiku Aesthetics, Foster City, California: Press Here, 2001). Yet the engagement in haiku is similar to the disengagement in the derailment theory of humor, in that the means to both ends is playful—that is, creative—and that the net aim is to create shared understanding. Humor of the “derailment” kind may disengage the reader from something negative, but it does still engage the reader in something positive to take its place—humor.

        The contextual nature of the derailment theory of humor—where one must know that an earthquake just happened or a tornado just swept through the nearest trailer-park, or know the values or morals of some intended victim—is one recent understanding of humor. D. H. Munro wrote in 1951 that a sense of humor takes “delight in what is new and fresh” (7)—a comment that applies equally well to haiku. Having a “sense of haiku” is exactly what is meant by the haiku spirit and living the haiku life. In fact, Arthur Koestler commented very directly on the similarity between the “creative insights” of both humor and poetry. In 1964 he wrote that “the logical pattern of the creative process is the same in [humor and poetry]: it consists in the discovery of hidden similarities” (7). Indeed, T. S. Eliot’s notion of the objective correlative—whereby an external object of nature or the world around us may be found that intrinsically embodies and conveys an internal emotion without the stating of that emotion—is central to successful nature haiku, and relies heavily on the observation of exactly those “hidden similarities.” Koestler notes a difference in the emotional climate between humor and poetry, yet calls attention to the similar structure or pattern. Of larger significance, however, is the fact that Paulos follows “Koestler’s principle that creative insights in all fields . . . share the same logical pattern” (8). Paulos summarizes this notion by saying that, “for something to be funny, some unusual, inappropriate, or odd aspects [of something] must be perceived together and compared” (9). While haiku typically embraces and finds virtue in the usual, appropriate, and ordinary, the way haiku works—in the perception and comparison of sometimes disparate objects or events—is similar to the way humor works. Whereas the humor of a joke lies in the resolution of ambiguity, so too the understanding of a haiku lies in the similar resolution of a carefully crafted ambiguity—what I like to call a “perpetrated ambiguity,” wherein two or more ambiguities are intentionally suggested. Whether ordinary or odd, the revelations of suchness in both haiku and humor are strikingly similar in pattern, structure, and even response.

        For humor to work, however, Paulos stresses that the “emotional climate” must be appropriate (10). As an example, earthquake jokes are hardly appropriate while one is excavating the debris of a fallen building looking for bodies—or survivors. As already mentioned, the severity of a disaster may be measured by the delay after which jokes about it begin to surface. Even the common preface “Have you heard the joke about . . .” serves a useful purpose because it alerts the listener to the onslaught of a joke. Thus, despite all its cloying, it helps to create an appropriate emotional climate. By this emotional climate Paulos means to acknowledge the contexts and psychological aspects of humor. These can become quite involved, and if one wants to delve into the writings of Freud and others batting about this topic, one may do so, but it is not directly relevant to the study of the structural patterns of humor—or haiku. Of relevance to the subject of haiku, though, is the analogy that, as with humor, perhaps the “emotional climate” must also be appropriate for haiku. I fear this topic is too large to explore adequately here, and would only diverge from the topic at hand. But it would be worthy of exploration. Suffice it to say that haiku and humor both require an appropriate emotional climate—and this similarity again strengthens the idea that haiku and humor have much in common.

Affinities Between Mathematics and Humor—and Haiku

For his purposes, Paulos notes numerous affinities between mathematics and humor. Many are also surprisingly true of haiku. Not only does he state that “both mathematics and humor are forms of intellectual play” (10), but that they are both “economical and explicit” (11). What could be more true of haiku? The elegance of brevity is no more refined than it is in haiku, and explicitness may also be found in haiku’s directness and objectivity. I cannot vouch for most mathematical proofs, but a long-winded or awkwardly told joke seldom makes one laugh.

        Paulos also suggests that “combinatorial ingenuity” (14) is strong in both humor and mathematics (the cleverness of combining unexpected things in the right way). This is emphatically true for haiku, where the choice of which elements to juxtapose is central to the vibrancy of the poem. More subtle, but vitally important for haiku, is the similarity in logic. For all the absurdity in humor, it is always held together by some internal logic or the joke would not work—it makes sense on some level. Mathematical proofs also depend on logic, of course—and so do haiku. Paulos indicates that humor requires “a perceived incongruity with a point and an appropriate emotional climate” (10, emphasis added). Just as there must be some “point” to a joke, a haiku flounders like a badly told gag if it does not have some sort of goal such as showing the unity or internal comparison of two carefully selected objects or events in juxtaposition. By “goal” in haiku, I do not mean just the poet’s intent, for the poet’s desire for his or her poem can be misguided or the experience may be inadequately told in words. Nor do I mean any overarching moral or manipulative message—polemical agendas that seldom have a place in haiku anyway, because the poem seeks simply to reveal the suchness of things without agenda or ego assertion. Rather, I mean that the goal of a haiku is to have whatever element makes a haiku work, if it works. In a sense, this elusive goal is larger than the poet. Perhaps what I’m saying can be made clearer by stating that a jokester’s “intent” may be to make another person laugh or to prick the conscience through satire, but the method of how the structure of a joke brings about that laughter or realization of satire is quite distinct from what he or she says or may have intended by the joke. In other words, my focus on humor and haiku is objective rather than subjective, a focus not so much on what is said or intended, but how it is said. The similarity to the logic of humor and mathematics is that for the haiku to work, that “how” must, of necessity, be internally logical.

        Paulos also notes an assertive tone in most humor. This assertiveness, the surety of what is being said (“this is so”), is also a clear trait of successful haiku. Its apparent assertiveness arises, I think, from the poem’s clarity, concision, and directness. In a good haiku, as with a good joke or refined mathematical proof, no redundancies exist to suggest doubt, no woolly phrases or flawed syntax, just the clearest verbal path, the most elegant means to an end (one could say that they have the ideal organic form, to use Denise Levertov’s term). The implication for beginning haiku poets is that their work might improve if they write with greater assertiveness—not naively, of course, but to strive after the substance behind the poem that intrinsically gives rise to polite assertiveness.

        A final trait of both mathematics and humor that also applies to haiku involves the necessity of deduction. Just as one may deduce the conclusion of a syllogism through logic, and just as humor works by offering surprise deductions, haiku has its life-blood in the deductions of both writer and reader—little leaps of understanding. The writer makes the first deduction, of course, keenly perceiving one or more elements of nature or human nature in a moment of heightened awareness, deducing an internal comparison or objective correlative or using some other haiku-writing technique to convey meaning. But, because haiku is a poetry of implication, it is also up to the reader to deduce those implications. This is why haiku seem unfinished, like “a hand beckoning, a door half-opened,” as R. H. Blyth has said (Haiku, Volume I: Eastern Culture, Tokyo: The Hokuseido Press, 1949; 272). This is what sets haiku apart from most other poetry, in that the reader has to be engaged to complete the poem (and perhaps why many haiku poets read each of their haiku twice at public readings). And as with humor, where the listener reaps the reward of a joke by “figuring out” the punch line and making a leap of understanding without the joke being explained, so too the haiku works best if it avoids explanation. If the poet knows when to stop and lets the reader figure out what makes the poem work, then that is where the haiku begins to reverberate and reward the reader. For example, consider this poem of mine (from Frogpond 14:3, Autumn 1991, and second-place winner in the Haiku Society of America’s 1991 Henderson haiku contest):

                an old woolen sweater

                      taken yarn by yarn

                           from the snowbank

I’ve shared this poem in workshops and seen the light go off in the eyes of students when they realize that this poem is about a bird building a nest. Yet it takes a risk in hinting at that meaning, and not all readers get it. The light doesn’t always click on. But I believe the poem creates a greater reward by not explaining itself or by avoiding excess information that would make the poem easier for a less sensitive reader. As Toni Morrison once said, “All art is knowing when to stop.”

        Nevertheless, too many haiku, especially by beginners, fail to let the reader figure anything out. For example, a statement of emotion, or an explanation or intellectualization about the relationship between certain natural elements chokes all hope from the poem with these shortcomings. Even concrete poetry must be put together or reconstructed and thus figured out. It would be absurd to explain a successful concrete poem; such an explanation would kill it just as surely as explanations kill the humor of jokes.

        Incidentally, this is one reason why I consider Cor van den Heuvel’s controversial “tundra” poem to be a haiku, though some poets and critics do not. In this poem, the reader figures out that the white space of the page is snow surrounding the lone “rock” of the word “tundra”—or that the expanse of white space is a concrete representation of the tundra itself. This “putting together” of the poem occurs in a spark of understanding, a leap of enlightenment. Indeed, the very “haikuness” of this poem takes place in that realization, rather than in the verbalization or the space of the poem. Meaning has been put in a different place, and it’s up to the reader to figure that out. Because the verbal (surface) structure is so reduced in Cor’s poem, having only one word, it leaves little for poets to understand as “haiku” unless they grasp the metalevel (deep) structure—the relationship of this particular word to the expanse of space around it. To say that any word could be tossed onto a page by itself and called a haiku is a grave mistake that ignores the spark of deep-structure realization that defines not only this minimalist haiku but also more conventional haiku. For me it is this spark, this vital leap of understanding so perfectly crystallized in haiku, that defines haiku and its spirit more than any other characteristic. What seemingly confuses some poets into disallowing “tundra” as a haiku (albeit experimental and on the fringe), I suspect, is too great a focus on the object level or surface structure of the poem, and inadequate focus (even a total lack of awareness thereof) on the metalevel or deep structure of this poem—the level at which I feel haiku is truly defined. I do not mean to suggest, however, that more haiku should be like “tundra.” Quite the opposite, in fact. It’s been done, and because it’s so short, most poems like it would be overly derivative (John Stevenson’s “core” being one brilliant exception). Rather, more haiku poets could benefit from recognizing this poem’s deep structure and how it serves to create a moment of realization. Perhaps I am being generous, but it’s that similarity of deep structure and the emotional effect that “tundra” has on the reader that makes it akin to more traditional haiku, and thus makes it, in my estimation, a haiku.

        Levels and the deep structures of transformational grammar will be returned to shortly. For now, however, note that the understanding of a joke is different from its humor. Similarly, the understanding of a haiku is different from its implied emotion. The problem is simply that some haiku are too often explanatory, thus committing a sin equivalent to the explaining of a joke.

        The traits of deduction and other similarities between humor and haiku temporarily aside, much of this discussion might be abetted with some examples of haiku. The best examples, however, show the failings of specific haiku, and I would rather not discuss any individual failed poems. In general, though, consider the example of a haiku that explains too much. In such a case, the explanation removes the element of deduction, the very “playing with the poet” that makes the game enjoyable—worth playing, even. With too much explanation in a haiku (directly stating one’s intellectualization or emotion rather than freshly describing an object or event, for example), the poet is saying, in effect, “watch me play.” This completely misses two essential aspects of haiku, those of suppressing the ego, and of actively engaging the reader, getting him or her off the bench to join the game and help “finish” the poem. A game of tennis is no fun—indeed, not even possible—without a partner.

        As for the understanding of jokes, Paulos asserts that they are like mathematics because they “depend for their humor on an implicit understanding of the axiomatic method” (19). He summarizes this method as the selection of “certain self-evident statements as axioms and deducing from them, by logic alone, other statements, which often are not so self-evident” (19). The corollary to haiku is extremely compelling: The haiku poet selects certain self-evident (that is, universal) objects or events as axioms from which certain intrinsic, non-self-evident conclusions may be deduced. It’s where we get the haiku poem’s leap of understanding, indeed, the aha moment. This is the heart of how haiku works. To give an example, a window and a rock might be selected for a haiku as axiomatic objects from everyday life. With the appearance of those two objects in a poem, we can leap to the conclusion of what the rock might do to the window. This may be an easy conclusion to make, but it’s not intrinsically evident in the “self” of the window and the rock; rather, it becomes evident in the reader’s interpretation. In this manner, one plus one becomes three.

        I note with more than passing interest, incidentally, that the logical deductions that may be made from the so-called “axioms” in a haiku are sometimes confused with a mystical sort of intuition. Some readers think they “intuitively” understand what a poem is about. That may be so, but quite likely the truth in the way they understand a poem is less subjective: they may have simply deduced a meaning by objective logic, thanks to the axiomatic nature of the primarily noun-based elements of haiku. Indeed, Paulos suggests that axioms may be thought of “as being clues to a mystery and the different possible scenarios for the crime as being models of these axioms” (22). Likewise, the elements of a haiku are indeed clues to a mystery. It may not be a dastardly crime, however, when the poet fails to understand the poem’s intrinsic structure.

Object Levels and Metalevels in Humor and Haiku

Another vital distinction to do with mathematics and humor—and also haiku—is between “object level” and “metalevel.” In terms of haiku, what a haiku describes is the object level—a rock, a tree, a passing glance. But what the poem is about, that is, what it implies, is the metalevel—old age, loneliness, love, or whatever, and the emotions related to the implication. I have at times described haiku as “a brief poem using objective words to convey heightened subjective feeling about nature and human nature.” Here the objective/subjective dichotomy maps neatly to the object level/metalevel distinction—and to surface and deep structures in terms of transformational grammar. I feel that many beginning poets confuse these levels, and doom their poems to failure by trying to directly state a subjective feeling within what is best left as an objective domain. Yet often the very subject of a poem is best removed so that the reader can be left alone to figure it out and make that leap from the objective to the subjective (hopefully, the same subjective intent as the poet). It is in the metalevels of meaning where haiku begin to reverberate. Paulos emphasizes the need to rise to the metalevel for humor to succeed: “to get (i.e., understand) a joke . . . one must ascend, so to speak, to the metalevel at which both interpretations, the familiar and the incongruous, can be imagined and compared” (26). The same is also true with haiku, yet again this “ascent” to the metalevel, the level of meaning, need not be considered mystical.

        I find another intriguing parallel between humor and haiku in Paulos’s assertion that certain basic paradigms must be understood by a common body of people for humor to work (among those people at least). Perhaps, in the widest way, in Jungian terms, this is nothing less than the collective unconscious, which asserts that we all know, feel, or understand certain paradigms and archetypes. In haiku terms, these basic paradigms include the so-called “universal” in the particular that haiku so often espouses, and also include the common understanding we have of most seasonal references. If a poet describes an obscure local custom or insect or place, that poem’s meaning is necessarily limited even among a body of knowledgeable haiku readers. But if one describes what is more universally known, or archetypal, as in the common name for a certain genus of flowers (rather than, say, Helianthus annuus), the chances of successful communication are vastly improved—first on the obvious object level, but also on the more important metalevel. Actually, if there is no possibility to ascend to any metalevel, that is, if the poem operates only on the object level, then no reverberations are possible and the poem will be unremarkable and forgettable—a “so what?” poem. Paulos puts it this way: “With no feeling for what is correct, congruous, or natural, there can be no perception of what is incorrect, incongruous, or unnatural” (27–28). It is not completely accurate to call the metalevels of haiku “incorrect or unnatural,” necessarily, but certainly something unexpected or incongruous is the domain of the meaning level in haiku. Former Haiku Society of America president Virginia Brady Young has described haiku as “leaping the chasm” (Raking Sand, Foster City, California: Press Here, 1993; 28). The point regarding humor and haiku paradigms is that haiku poets must first stand on an identifiable, common cliff edge before they can go about leaping chasms. If poets begin with carefully chosen commonality, they will more readily engage the reader with their leaps to what is uncommon. This is an assumption inherent to humor and haiku that is too often overlooked.

        In contrast to the ideas of object level, metalevel, and shared paradigms, Paulos reminds his readers that Zen philosophers have suggested that “[dualistic] notions like truth and falsity, subject and object, external and internal, while essential in everyday life as well as in scientific thought, nevertheless prevent one from attaining a mystic, oceanic union with the universe” (52). Because some jokes, especially paradoxes, intentionally confuse and then resolve levels, and challenge the notions of truth and falsity, they “might thus be taken as a reminder of this essential is-ness of the universe—a reminder that these distinctions, in some fundamental sense, are unimportant” (52). How true this is of haiku. Certainly the ascent to the meaning level/metalevel in haiku, while not necessarily confused and then resolved intentionally, does remind one of the is-ness and suchness of our surroundings. Therein, it would seem, lies the fundamental brilliance of haiku: By using objective words to convey—that is, imply—heightened subjective feeling about nature or human nature, haiku lays an object-level groundwork from which the reader may make the gestalt leap from the subjective metalevel, and, in the process, unifies the objective/subjective dichotomy into the holistic suchness of Zen’s eternal now. That’s a mouthful, I realize. The point is that, if we trust it, the right objective imagery, carefully juxtaposed, can have magical poetic and emotional effects. The end feeling can seem in many ways mystical or euphoric, like a taste of enlightenment, but here again it is a result, not the full process. And it is, in effect, a meta-metalevel. This figure/ground wholeness might be thought of, if you will, as the grand unifying theory of haiku. At its very base it shows that haiku recognizes that the universe simply is. Just as one laughs at the point when one has resolved a joke’s incongruity, one also breaks into a knowing smile at the “aha” moment of resolving, when it occurs, a haiku’s apparent incongruity—of figuring out what one part of the haiku has to do with the other, for example. At the instant of resolution in haiku, the levels seem to dissolve, the objective and subjective are superseded by the meta-metalevel, and one returns—leaps—to the ultimate yet intimate suchness of life, a mystical unity that is as Zen as Zen can be.

Catastrophe Theory: A Topological Model for the Structure of Humor

Paulos proposes a three-dimensional topological model, based on René Thom’s catastrophe theory, for the unifying moment central to humor. It also fits the structure of haiku, as I hope the reader will see. But before introducing the model, Paulos discusses types of humor, transformational grammar, deep and surface structures, and larger aspects of philosophy. He explains, for example, that “a pun forces one to perceive in quick succession two incongruous and unrelated sets of ideas” (61). This much is already understood, but then he immediately goes on to say that “the suddenness is, as in much humor, very important” (61, emphasis added). He means the suddenness of one’s realization of a joke, and here again is a parallel to haiku—its subject is here and now, but the sudden realization of its metalevel is very sharply here and now also. In presenting a mathematical model for humor, Paulos emphasizes “the idea of an abrupt switch or reversal of interpretation in the sudden perception of some situation, statement, or person in a different and incongruous way” (75). He might just as well say this of haiku. This abrupt switch or discontinuity is akin to René Thom’s topological mapping known as catastrophe theory (and here “catastrophe” is meant more in its primary definition of “the culminating event of a drama . . . by which the plot is resolved,” rather than any natural or personal disaster). As Paulos explains, the model “provides a sort of mathematical metaphor for the structure of humor [and helps observers] to visualize that structure more clearly” (75–76). When I first noticed that this model applies rather neatly to haiku as well as humor, it was not without a good deal of intellectual excitement.

        This topological model presupposes the understanding of a three-dimensional coordinate system, where points are located by their x, y, and z coordinates. Much of the mathematics and topology is perhaps best avoided here, but essentially, given any response to a joke that depends on two factors (that is, an incongruity and its resolution), and given that it is discontinuous and satisfies mild general conditions, a consequence of Thom’s main theorem is that a graph in three-dimensional space of empirically measured results gives rise to the following surface shape:

        In the middle of this model is a double layer where the graph of responses may jump from one layer to the other over an inaccessible gap. In terms of humor, it is here that one’s understanding of the multiple meanings of a pun, for example, may oscillate back and forth. Paulos believes this model is readily adapted to the study of humor (84). Similarly, I extend that adaptation to the study of haiku.       +

        Specifically, Paulos adapts the graph’s application to humor by considering ambiguities. He explains it thus, with my extrapolations regarding haiku and the graph’s layers:

An ambiguity results when a statement or story [or haiku] has more than one possible meaning [represented by the graph’s two layers]. Usually only one of these meanings is apparent (or, if both are apparent, only one is understood in a particular context). The statement or story [or haiku] in which the ambiguity occurs can, however, be developed further so as to change the likelihood of the ambiguity’s being interpreted in a particular way. At some point, in fact, a person suddenly (discontinuously) changes his understanding (gestalt) of the ambiguous story, and there is an abrupt interpretation switch. (84)

        In the epiphany of this sudden change of understanding lies the “aha” moment of haiku, the practically involuntary reaction to humor in the form of laughter, and that sweeping meta-metalevel sense of unity. Paulos ties this mapping more directly to humor as follows:

A joke . . . depends on the perception of incongruity in a given situation or its description. A joke can thus be considered a kind of structured ambiguity, the punch line precipitating the catastrophe of switching interpretations. It [the humor as well as the haiku] adds sufficient information to make it suddenly clear that the second (usually hidden) meaning is the intended one. (85)

        In terms of humor, Paulos cites a joke about a young man who requests from a computer dating service someone who enjoys water sports, likes company, is comfortable in formal attire, and is very short—and is then sent a penguin (26). He maps this joke to the graph as follows:

Here the developing first meaning is that of a woman and a certain life-style (pictorially, gradually ascending the upper layer over the ambiguous region). The punch line, “the computer sent him a penguin,” reveals the hidden second meaning and brings about the catastrophe (pictorially, dropping from the upper to the lower layer of the graph). (85)

Catastrophe Theory in Haiku and Senryu

The mapping of catastrophe theory to haiku may be a little trickier, and may have its limits. But in a typical haiku (or senryu), certain facts are presented (at the object level), and then the reader ascends to a new or larger interpretation of these facts (at the metalevel). This new interpretation produces the catastrophe, which is, in haiku, that unifying leap between now-resolved but seemingly divergent interpretations represented by the graph’s layers. Note that the ascent to the metalevel is not the same as the catastrophic jump back to the object level. It is the understanding of the metalevel, represented pictorially by reaching the graph’s second layer, that causes the jump that, in turn, is the meta-metalevel. Let me illustrate with one of my own poems, in this case a senryu, from Fig Newtons: Senryu to Go (Foster City, California: Press Here, 1993; 4):

                at his favourite deli

                the bald man finds a hair

                in his soup                                                      +

        Notice, first off, that this poem does not have two parts in any kind of grammatical juxtaposition. Such a juxtapositional structure does map to the layers of the catastrophe-theory graph, but is not required. Furthermore, senryu do not require such a structure the way haiku do, but this “one phrase” structure (lacking a kireji or the equivalent of a cutting word) still maps to the three-dimensional model. Here, the initial “meaning” (which is by definition limited to objective facts on the object level) is a person’s discovery of a hair in his soup. At home or at a restaurant (no matter how fancy), the diner’s fleeting concern centers on whose hair it might be. Removing the offending hair is a relatively trivial concern. Before performing that odious task, however, one is somehow more repulsed if the hair is identifiably someone else’s—being red, especially long, curly, or otherwise distinctive from one’s own, if one’s hair happens not to be red, long, or curly. My personal experience, having (at least in the past) plenty of common, short, straight, brown hair, is that I can seldom tell if a hair lurking in a bowl of soup is mine or someone else’s (and no, this doesn’t happen to me often!). But in the bald man’s case, the implication is that this man is completely bald: this hair in his soup couldn’t possibly be his. That is the gestalt of the poem.

        The mapping to the topological graph is perhaps not as obvious as with a simple pun or any other linear or progressive resolution of ambiguity, but the description of a man finding a hair is pictorially akin to gradually ascending to the second layer. The poem is essentially read as a whole, seen all at once like a picture, however, so the poem’s structural “development” takes places not as one reads it linearly, but as one’s understanding of it unfolds in the mind. This is a subtle but important difference, at least for this poem. It is vital here because the word “bald” carries the weight of causing the catastrophic jump in meanings (specifically, this could not be his own hair because he is bald). Pictorially, this is where the graph drops from the upper to the lower level. Again, the “bald” detail does not appear at the end of the poem the way a punch line does at the end of a joke, but the perception of the poem does unfold in a manner similar to a joke, and the gestalt jump is clearly made when the reader comes to the unexpected understanding that the hair in the soup did not grow from that man’s head. Adding to the poem’s overall effect are two intensifying factors. First is the irony that this “catastrophic” event takes place in the man’s favorite deli, and second is the innate humor of total baldness—although the innateness of such humor is undoubtedly more apparent if one is not bald (I am, alas, finding it increasingly less funny myself, but I digress).

        The example I’ve just shared, a senryu, is by nature humorous. But nonhumorous haiku can also be mapped to the catastrophe-theory graph. Consider another poem of mine, this time from my book of earthquake haiku, Tremors (Foster City, California: Press Here, 1990; 4):

                after the quake

                       the weathervane

                              pointing to earth

        Now this poem depicts another kind of catastrophe, but I hope that fact doesn’t confuse matters. Here again the reader is presented with objective facts: after an earthquake a weathervane is seen pointing to earth. There is no stated interpretation or explanation here. The apparent cause-effect explanation is what the reader perceives in that gestalt moment of figuring out the poem. Here the detail of a bent weathervane pointing to the earth in the context of an earthquake is pictorially mapped to the ascension toward the graph’s upper layer. In this poem, perhaps more clearly than in the bald-man poem, there is at this point an ambiguity: why is the weathervane pointing to the earth when it normally does not? Again, this ambiguity passes by very quickly as the reader perceives the facts in the poem as a whole—it is not sequential or linear in the way one actually reads the lines of the poem (the lines are arranged as they are for syntactic reasons that have little to do with the progression of perception in so short a poem, at least for the sake of applying catastrophe theory to the structure of haiku). This ambiguity is resolved in the catastrophic gestalt that the earthquake shook so much that it capsized the building or bent the post that supports the weathervane—that the earthquake caused the weathervane to point to the earth, thus even laying “blame” where it seems rightfully to belong. This again is the jump that maps to the model pictorially.

        By extension, I would suggest that many successful haiku can be mapped to René Thom’s topological model of catastrophe theory in a similar manner. I find this to be true for English-language haiku. And, just as Paulos assumes that the structure of humor is universal, regardless of language (105), I believe the structure is likely also the same for many successful haiku in other languages. I would even wonder if a haiku might be defined as successful if its structure and development in any language maps to this topological model of catastrophe theory. Anything else, it would seem, is merely confusing or a “so what?” poem, a failed attempt at haiku. But that is speculation, for the topological model of catastrophe theory may have limits in its application to haiku. If perchance the model cannot be mapped to certain successful haiku, then at least an understanding of this structure affords a closer insight into the way many good haiku do work.


Paulos goes on to discuss concepts called “divergence” and “hysteresis” that explain why certain jokes misfire or fall flat if told inappropriately (for various reasons they fail to ascend to the second layer, thus preventing any catastrophe or jump). The application of these concepts to haiku, and why poor ones fail, offers itself as an intriguing avenue for further exploration. Paulos also points out the inaccessible gap between the layers in the model. This gap “illustrates the fact that only one or the other interpretation can be made at a time” (87). The same is typically true of haiku, even though rapid oscillation between two different meanings may be attempted—and even enjoyed. It may be likened to viewing the Necker cube, where the three-dimensional shape can be seen to face one way or the other, but not both ways simultaneously:

The “pops” that one’s eyes experience as the cube faces first one way and then the other are just like the leaping of the chasm that is the essence of haiku. It therefore seems serendipitous that Jack Kerouac’s early name for his Americanized haiku was none other than “pops.” Furthermore, this oscillation of visual meaning also reminds me of Allen Ginsberg’s concept of the “eyeball kick,” the brief “double-take” spasm of the eye when it moves from one color to another contrasting color, a technique he adapted in his poetry by combining dissimilar images—the high and low, the holy with the unholy. As Paulos emphasizes, in applying catastrophe theory to humor, “the model, in neatly combining the cognitive incongruity and the emotional climate aspects of humor with the release theory of laughter, provides one with at least the beginning of a pictorial insight into the structure of humor” (90). So too, of course, with haiku—which, incidentally, Paulos mentions in his sequel to Innumeracy, entitled Beyond Numeracy: Ruminations of a Numbers Man (New York: Knopf, 1991).

        Paulos’s models for humor, however, do not stop at three dimensions. He also explores two- and four-dimensional models, and also explains that René Thom posits a total of seven catastrophe models, not all of which necessarily hold true for humor—or haiku. Nevertheless, catastrophe theory provides a convenient pictorial model that not only provides insights into humor, but into haiku as well. Paulos notes in his conclusion that he has employed catastrophe theory to “model the structure of humor, but [suggests that] applications to other cognitive processes are possible” (103). I hope I have accomplished exactly that task for haiku, and recall with interest Paulos’s formula for humor being “a perceived incongruity with a point, in an appropriate emotional climate” (104). Could not haiku be defined in precisely the same way? No wonder Arthur Koestler claims that “the logic of the creative process is the same in art, science, and humor, and that only the ‘emotional climate’ differs” (106–107).

        Indeed, that is the conclusion. To reiterate, haiku has much in common with humor, structurally to be sure, and this structure is neatly expressed through the topological model of René Thom’s catastrophe theory. Also, and of greater import, perhaps haiku writers can better understand haiku by learning from and understanding the structure of humor, particularly in the ideas of object level and metalevel. Because humor is so prevalent, it can form, in all its many varieties, a handy structural analogy to haiku and help poets master the art of this brief yet bursting poetry. As Paulos concludes, “since humor is such a complex and human phenomenon, any understanding of it will necessarily enrich our understanding of thought in general” (102). So too, indeed, of haiku.

Acknowledgments: I am grateful to Professor John Allen Paulos of Temple University for permission to quote heavily from his book, Mathematics and Humor (Chicago: University of Chicago Press, 1980), and for the inspiration to explore his ideas. Thanks also to Ron C. Moss for help in refining the topological image that models catastrophe theory.

Eight Postscripts


One of several serendipitous discoveries in writing this paper was the idea that haiku are assertive. A second discovery was the necessity for an appropriate emotional climate for haiku. These topics are certainly worthy of further thought. But I believe the most important concepts to be gleaned from this paper, for those so inclined, are the ideas of object levels and metalevels, as well as meta-metalevels in haiku. Understanding where meaning resides, and how the poem is often structured, can help us in teaching haiku and in writing and revising our own poems. Nevertheless, haiku poets would do well to remember that haiku is an intuitive poem, a poem of feeling more than intellectual meaning (“since feeling is first,” as E. E. Cummings said, the person “who pays any attention / to the syntax of things / will never wholly kiss you”). Indeed, whatever strides may be made toward understanding the structure of meaning in a haiku, more important is the poetic effect of that meaning in recreating a desired mood and intuitive feeling.

—29 July, 1 August 1999, 15 September 2014


Some ideas in this paper may be intuitive to some readers. And they are hardly new, as I mention at the beginning. In the Canadian Haiku Anthology (George Swede, ed., Toronto: Three Trees Press, 1979), Marshall Hryciuk wrote that “The strength of the haiku is in the bounding line between figure and ground leaping from its vibrancy into an uncanny sense of transcendence” (58). It is exactly this transcendence that makes a strong haiku leap off the page. It leaps, of course, because of the underlying structure that often matches what we find in catastrophe theory. Consider, for example, the following poem:

                snow melting

                the village brimming over . . .

                with children!

Kai Falkman singles out this poem to illustrate “the mechanism of surprise in haiku.” As he explains, “The first line provides a factual picture of melting snow. The second line excites the imagination: there is so much melting snow that the village is flooded. The third line brings the surprise: with children” (from Understanding Haiku: A Pyramid of Meaning, Winchester, Virginia: Red Moon Press, 2002, 38). Comedians understand Falkman’s “mechanism of surprise,” because the same mechanism is at work in a good joke. As a master joke-teller, so to speak, Issa sets up the situation: “snow melting / the village brimming over . . .” and then hits the reader with the unexpected punch line: “with children!” The children have been cooped up indoors during the long, cold winter. Now, as the snow melts, they burst outside, “flooding” the village with their shouts and laughter. This is the satori-like power of catastrophe theory, in miniature, at work in haiku. The leaping of the gap in haiku is indeed a sort of satori, and here it is worth quoting D. T. Suzuki’s description of satori, which might just as well be talking about haiku (An Introduction to Zen Buddhism, New York: Grove Press, 1964, 95):

Satori is the sudden flashing into consciousness of a new truth hitherto undreamed of. It is a sort of mental catastrophe taking place all at once, after much piling up of matters intellectual and demonstrative. The piling has reached a limit of stability and the whole edifice has come tumbling to the ground, when, behold, a new heaven is open to full survey.

In her essay “Haiku Is Not,” Naomi Wakan says that “His [Suzuki’s] ‘behold’ is the ‘Aha!’ moment of haiku.” Indeed, haiku’s “aha” moment is exactly this instant of catastrophe when readers leap that amazing gap that unifies emotional understanding.

—15 August 2008, 18 November 2009


A third thought has arisen in my recent reading of Philomene Kocher’s essay “Inviting Connection Through the Gap in Haiku” (Language & Literacy 11:1, Spring 2009), in which she says that “There is a tension or ‘gap’ created by the association or contrast of two things, and this ‘gap’ invites participation by the reader or listener.” She also adds that “the gap provides both an absence (it does not appear in words) and presence (it is suggested) of connection. The revelation or epiphany experienced by someone when they jump the gap is well described by Natalie Goldberg.” She then quotes a passage from Long Quiet Highway (New York: Bantam, 1993, 35): “The real essence of a haiku is the poet’s awakening, and the haiku gives you a small taste of that, like a ripe red berry on the tip of your tongue. Your mind actually experiences a marvelous leap when you hear a haiku, and in the space of that leap you feel awe. Ahh, you say. You get it.” The gap in haiku, of course, has been described as being like the gap in a spark plug. If the gap is too great, the engine won’t fire. Similarly, in haiku, if the gap between the poem’s two parts is too great, the poem will simply be obscure and unclear, pushing the reader away—readers won’t make the leap between the poem’s two juxtaposed parts. Likewise, if the gap is too small, and the leap is too easy, then the poem will seem too obvious—a so-what poem—in the same way that an engine will misfire if the spark plug gap is too close. The art of haiku lies in making the gap in the poem just right.

        Kocher also notes the following, which I could easily have used as an example in addition to or instead of my reference to the Necker cube: “I am reminded of the picture used in psychological testing that can be viewed as either a vase or two faces.” In viewing this picture, the viewer oscillates between seeing the vase or seeing the two faces. Haiku, in its combination of two parts, is like seeing both the vase and the faces simultaneously. She also quotes poet Tom Clausen as saying “Our being, our haiku, is the connection of events, phenomena and the closing of the gap.” Kocher also mentions that some haiku poets focus on novelty, and said that “novelty can act in a similar manner to the punch line of a joke.” And perhaps of closest similarity to my essay here is the following statement, worth quoting in full:

Both haiku and jokes are characterized by incongruity that invites interaction. The structure of humour as described by psychologist Lucille Nahemow (1986 [“Humor as a data base for the study of aging.” In L. Nahemow, K. .A. McCluskey-Fawcett, and P. E. McGhee (eds.), Humor and Aging (pp. 3–26). Orlando, Florida: Academic Press, Inc., 1986.]) could easily describe the structure of haiku: “The discrepancy between the expected and that which transpires accounts for the humorous experience. However, incongruity alone appears insufficient. There must also be resolution for the joke to make sense” (p. 6). Nahemow also notes that “[t]he recognition that something is funny contains both emotional and cognitive elements” (p. 8), and this kind of wholehearted response is true for haiku as well.

—18 November 2009


In his introduction to Delia Chiaro’s The Language of Jokes: Analysing Verbal Play (London: Routledge Press, 1992), Ronald Carter quotes Roman Jakobson, who noted the following: “A linguist deaf to the poetic function of language and a literary scholar indifferent to linguistic problems and unconversant with linguistic methods, are equally flagrant anachronisms” (ix). This is a finger-wag of sorts, for linguists to remember poetics, and for literary scholars to remember linguistics. It’s in that spirit that I offer my essay, not with an intention for practicing haiku poets to have something to take away with them to improve their writing, necessarily, but to consider deeper linguistic and structural contexts for how haiku poetry works. Chiaro, who in 1992 was a lecturer in English and linguistics at the University of Naples, has much else to say in her book that’s relevant to haiku and the catastrophe theory of humor. For example, she refers to “a quizzical element” in jokes, and says that “an information gap exists between the [writer] and the reader” (27). Is this not the same as in haiku, where a gap is resolved when we “get” the leap? She also says that “If word play is to be successful, it has to play on knowledge which is shared between sender and recipient” (11). We can easily say the same thing about haiku. She echoes Jakobson when she says that “three systems interact with each other in order to make up the sort of competence required in order to get a joke: linguistic, sociocultural and ‘poetic’. Richard Alexander . . . defines poetic competence as the ability to recognize the ways in which linguistic options can be manoeuvred in order to create a desired effect—the recipient of a joke, in a sense, is in a similar position to the reader of poetry; both need to appreciate exactly how the comic/poet has toyed with the language” (13). Ambiguity is helpful in poetry and jokes, of course, because it is so often the source of double meanings and humor, but I think it’s useful for poets to control the ambiguity in their poems, to prevent misreadings—which is all part of how the poet “toys” with the language. Chiaro also notes the moment of disjunction that occurs in jokes, which is akin to what happens in many haiku, at least in that “leap” between layers in the catastrophe theory model, and the implications it creates (think of the Japanese notion of “ma,” or space, in haiku, and how it allows and nurtures implications and reverberations). She says “It is this very implication, this cryptic element which differentiates the joke [and haiku] from many other texts” (53), adding that “Two totally different elements are put up for comparison” (32) and that “The ‘joke’ is obviously more enjoyable if the reader can appreciate it on both levels [of meaning]” (31). She says that a punch line “is the pivot around which a joke is centred” (49), which is like the implications that haiku focus on, and of course like the technique of kakekotoba or pivot words in haiku. Ultimately, she says, “certain jokes can be defined as being poetic” (28), and that “some jokes can be seen as being formally similar to . . . poetry” (87). Some additional thoughts relevant to haiku are that “poetry and puns tend to encounter similar difficulties when an attempt is made at translation” (88), and that “some jokes are worth comparing to poetry in terms of the density of translation obstacles to be overcome” (88). Chiaro concludes her book by saying that “word play [like haiku] can be considered a form of ‘layman’s poetry’” because “playing with language can bring out the poetic side of the layperson” (123). Finally, she says that “The form of ‘poetry’—jokes—which is generated by these ‘poets’ is accessible to anyone who understands the language and the culture” (123). That is certainly true of haiku—a genre of poetry that, as Kerouac said, should be “as simple as porridge.”

—28 April 2016


On 21 August 2015, I had the pleasure of listening to a presentation at Microsoft on the subject of laughter. It was by Bob Mankoff, cartoon editor of the New Yorker. I was fascinated by a number of his comments that resonated with my essay. First, quite simply, Mankoff said that “Humor deflates.” To be deflated, of course, one must start at an inflated state. In terms of catastrophe theory, an inflated state could mean one level of meaning that one jumps from to a second layer of meaning—the deflated layer (since deflation is a source of humor, although not the only one). However, I don’t think deflation applies to the layers of catastrophe theory, since it has more to do with what Hobbes called the “superiority theory” of humor. The key point is that movement happens, a shift in emotional states. We could easily take the inflated state to mean a state of self-importance, which humor loves to skewer, or a state from which we look down on others or take pleasure in the inferiority of others.

        Speaking of the superiority theory, by which we deflate others (if we happen not to be deflated by them), Mankoff summarized Thomas Hobbes by saying that “the passion of laughter is nothing else but sudden glory arising from some sudden conception of eminency in ourselves, by comparison with the infirmity of others.” He mentioned this in his talk, and it also appears in his New Yorker essay of 25 April 2012, “Hostility Is the Soul of Wit” (accessed 18 May 2016), in which he suggested that Shakespeare’s oft-quoted “Brevity is the soul of wit” might replace “brevity” with “hostility.” Of course, not all humor is hostile, although on some level it often has a victim, even if that victim is merely language.

        In the same presentation and New Yorker essay, Mankoff also quoted Plato, who said that laughter is a “mixture of pleasure and pain that lies in the malice of amusement.” That mixture would seem to speak to the two layers of the catastrophe theory model. Both Plato’s claim and Hobbes’ perception of humor seem relevant to understanding senryu, and most likely haiku as well. In dramatic terms, tragedy is about people better than us, and comedy is about people worse than us. In very broad terms, if we extend this thought to haiku and senryu, haiku may be thought of as tragedy and senryu as comedy, even while both haiku and senryu may be either light or dark.

        Mankoff also said that “Arthur Koestler coined the term ‘bisociation’ to refer to the mental process involved in perceiving humorous incongruity. According to Koestler, bisociation occurs when a situation, event, or idea is simultaneously perceived from the perspective of two self-consistent but normally unrelated and even incompatible frames of reference. Thus, a single event ‘is made to vibrate simultaneously on two different wavelengths, as it were.’” This is like our perceptions of the Necker cube or other optical illusions that seem to oscillate, and certainly akin to the catastrophe theory in humor.

        For a general overview of theories of humor, Wikipedia provides basic understandings, including theories of relief, superiority, incongruity, and other less-prominent theories.

—18 May 2016


The disjunction that leads to the catastrophic moment as discussed in this essay finds many precedents in the poetics of the past. For example, in Biographia Literaria (1817), Coleridge said that poetry “reveals itself in the balance or reconciliation of opposite or discordant qualities.” And at Temple University’s “Temple Poetry” blog, in response to Coleridge, A. R. Ammons writes that “This suggests to me that description, logic, and hypothesis, reaching toward higher and higher levels of generality, come finally to an antithesis logic can’t bridge. But poetry, the imagination, can create a vehicle, at once concrete and universal, one and many, similar and diverse, that is capable of bridging the duality and of bringing us the experience of a ‘real’ world that is also a reconciled, a unified, real world. And this vehicle is the only expression of language, of words, that I know of that contradicts my quotation from Lao-tse [“Nothing that can be said in words is worth saying”], because a poem becomes, like reality, an existence about which nothing can be said in words worth saying.” As the Temple Poetry blog explains, these thoughts were first delivered to the International Poetry Forum in Pittsburgh in April 1967, and then published in Epoch 18, Fall 1968, 114–19.

—12 July 2016


In answering a 1988 reader question, “What is the essence of intelligence?” Parade magazine columnist Marilyn von Savant said, “I’d say objectivity. Objectivity makes the difference between a cognitive leap and jumping to a conclusion.” What haiku poets can learn from this is the value of objectivity in their haiku. Presenting the facts, and knowing the difference between fact and opinion (or objectivity and subjectivity)—so we can control them both—is what enables our haiku to give the reader the opportunity to make a cognitive leap. The leap that occurs in haiku, that jump from one level to a metalevel of meaning or emotion, begins with objective description. This process also empowers the reader to make intuitive inferences, which is why many haiku take care to present observation rather than inference, and why it is important for haiku poets to understand the difference.

—29 December 2016


In 2021, Gabe Henry published Eating Salad Drunk: Haikus for the Burnout Age by Comedy Greats (New York: St. Martin’s Griffin), with poems by the likes of Ray Romano, Janeane Garafalo, and Jerry Seinfeld. The poems are at best “haiku,” with quotation marks, which is to say, not haiku. Some poems, however, might rightly be called senryu. Beyond that, nearly all of them are short witticisms. Funny, sure. And maybe it doesn’t matter if they’re really haiku or not, as we can still be amused. Of relevance here, though, is a segment of the editor’s introduction. He says, “Stand-up comedy and haiku poetry . . . have more in common than one might think” (xx). Among these commonalities, Henry specifically mentions concision, wordplay, and the Rule of Three. “In joke telling, this three-item rule usually takes the form of two set-up lines followed by a punch line” (xx). It’s not a juxtaposition, per se, but more of setting of expectations followed by a twist. This structure often applies to haiku, although in haiku the shift sometimes occurs after the first line instead of the second. This fits with the theories of humour presented in John Allen Paulos’s book, and echoes with the topological theory of humour that I find frequently mirrors the structure of haiku. In addition, as Henry says, “Sometimes comedy expands our scope to highlight profound truths about life and the cosmos; other times it narrows our view to the infinitesimal, the everyday, the subtle, and the subtly irritating. Observational humor contains the essence of haiku” (xxii).

—5 May 2022