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Not-Separateness

28 Monday Sep 2026

Posted by petersironwood in AI, creativity, design rationale, essay, HCI, leadership, management, nature, politics, psychology, Uncategorized, user experience

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AI, architecture, art, beauty, Design, development, ecology, governance, GreenNewDeal, HCI, human factors, IBM, leadership, painting, peace, photography, society, technology, TNOO, UI, usability, user_experience, UX, ux-design

Not-Separateness

It seems odd to specify a property of natural order in terms of what it is not. On the other hand, I cannot come up with a positive alternative that doesn’t bring other connotations with it. I think it’s related to “unified” or “integral” or “belonging” or “inter-related” but none of those seem quite so on the mark as does “Not-Separateness.” 

Christopher Alexander’s degree from MIT was in architecture. Part of the reason he may have chosen this particular term is in reaction to some examples of architecture in which the architect seems to be in the business of constructing a building whose primary purpose is to make them famous regardless of what that building does to the neighborhood or its occupants. 

Photo by BROTE studio on Pexels.com

Imagine Mr. Bigg designs a house that is a perfect black cube set on on vertex. In effect, this design says to me: “I am BIG. I am Mr. Bigg! I am a genius! You would have never been brilliant enough to design a house that is a cube on its vertex! You would have wasted your time and done something mundane like placed the cube on the ground on one of its faces. Anyone could think of that! But I put it on a vertex!” Indeed, we may easily imagine that he says words to this effect when his interview is reported on in the (mythical) architectural journal entitled, Things that look different! 

“Mr. Bigg, you made the Bigg House out of black steel and black glass. Some critics have argued that this doesn’t fit with the existing neighborhood of stone cottages with thatched roofs.”

“Of course, little minds will always criticize Bigg ideas.” 

“Yes, yes. It also means that the construction costs of the house were quite high. And, the estimated costs of heating and cooling are much higher as well.”

“Nothing that a worthwhile (i.e., wealthy) client can’t afford.” 

“Some have also argued that it is inconvenient for the occupants who have to walk up and down at a steep angle and that furniture such as dressers, tables, chairs, and beds do not accommodate well to the tilted walls.” 

“Let me ask you a question. Would you have ever thought of putting a cube on its corner? No. I didn’t think so!” 

Of course, this is exaggeration.

But not much. 

We would hope that User Experience designers take into account the users, their tasks, their contexts, and the way in which their designs interact with other related artifacts, people and processes. We would hope that applications and artifacts and services are all designed with the property of “Not-Separateness.” 

In the early 1980’s, I worked in the IBM Office of the Chief Scientist. My main assignment was to get IBM to pay more attention to the usability of its products. As part of that process, I visited quite a few IBM development labs around the world and spoke to many development teams. On many of these visits, I was accompanied by the Chief Scientist, a brilliant physicist, who “got” usability. 

On one occasion, we watched a new printing technology. Instead of printing out black printing on a white sheet of paper sized 8.5” x 11” or A4, this printout was of no standard size. The printing was black on a shiny silver sheet that curled severely. The Chief Scientist asked the head of the development team how they envisioned this being used. 

Chief Scientist: “Once someone printed this out, what would they do with it?”

Answer: “Oh, anything they liked.” 

Chief Scientist: “I mean, would people tape this into a notebook or paste it? Or would you imagine notebooks that would bind such paper?” 

Answer: “It’s not up to me to decide how people would use it. Doesn’t it look cool?” 

Another type of answer we heard more than once to the question, “How would this be used?” 

— “Oh, it’s a (replacement/upgrade) for this other IBM product.” 


“But who would use it and for what?” 


“It has three main components. Would you like a description of the components?” 

Photo by Andru00e9 Ulyssesdesalis on Pexels.com

Of course, there is a place for “playing around” with technology and thereby discovering things which someone else may find a use for. But in design and development of a product or service, having a clear notion of context of use and the users and tasks is fundamental. Of course, other users may appropriate a product or service for purposes beyond those envisioned by the original designers. That’s cool. 

What’s not cool is designing a device that is to be used in the bright outdoor sunlight and then testing the display in a typical office environment. Have you ever run across something like that? I have. Many times. At ATMs, Gas Stations, and outdoor display maps.

A more subtle lack of contextualization in design occurs when the design team fails to realize how many interruptions happen to the user while they are trying to accomplish a single task with the new application. If you “test” the application while the user is in a quiet “usability lab” and they can give your tasks their undivided attention, then necessitating them to remember the invisible internal state of “Insert” versus “Edit” mode may not be a big deal at all. They will simply remember. But in their office environment, they may be interrupted by a phone call, a message, or their boss entering their office and asking a series of detailed questions. If they now go back to the task at hand, there is about a 50-50 chance that they will correctly guess whether they are in “Edit” mode or “Insert” mode. 

A design which shows the property of Not-Separateness is the natural result of a process which shows not-separateness. Here are a few common ways to help ensure the design process grows organically from the users and their goals & contexts. 

* Put people on the design team who are familiar with the users, and/or their tasks, and/or their contexts. 


* People on the design team observe people engaging in the relevant processes, whenever possible, not — or not only — in a “Usability Lab” but in the actual work environment. For instance:

  • Observe people actually using product P (or service S) in version N so that version N+1 can be better attuned to the needs of the users.
  • Have people think aloud while doing this.
  • Gather and understand feedback from service calls and help desks and customer complaints in order to improve over time. 

There will be benefits to a company who takes such approaches beyond initial sales. If you’ve done any gardening, you will appreciate that the quality of the tomatoes you enjoy eating is related to the quality of the soil and the quality of the care you give the tomatoes. Similarly, a product or service that has the quality of Not-Separateness will not only be useful — users will fight to keep your product or service. It becomes integrated with the environment. To change the brand means that they will have to change the way they work; possibly even with whom they work. Not-Separateness is likely a path to what business people like to call a “Cash Cow.” 

If you’ve ever walked through a neighborhood after a hurricane, you’ve likely seen many uprooted trees. When you look at the roots of an uprooted tree, what do you see? Of course, you see roots. But what else? You see rocks and soil all around and embedded into the roots. They are Not-Separate. In a hurricane, there are typically not only high winds. There is also a lot of rain. The trees are hit with a double whammy. The wind pushes the tree but the rain weakens the solid soil in which the tree is embedded. It is the combination that makes it very difficult for the tree to “hold on” and keep from falling over. 

Living things, just like us, have a 4.5 billion year history of living. The living things adapt over time to their environment and they mold the environment to their needs. They are not separate. Flowers appeal to the insects who pollinate them. The insects who pollinate them are adapted to the characteristics of the flower. A horse adapts to their rider and the rider adapts to their horse. A product or service must have a design that serves the needs of its stakeholders. For a product or service to have maximum beauty, utility, and longevity, it must also have a way to adapt to the changing needs of the users and other stakeholders. At the same time, if the users and their organizations adapt to the product or service, then true Not-Separateness is achieved. 

If you want to skimp on designing your product or service, you can make it more separate, more divorced from its context, its users, and its tasks. Of course, if you do that, you also make much easier for your users to abandon your product and switch to a new one. 

Another way to think about this in terms of systems theory is where you draw the boundary. If you draw a sharp boundary around your product, you may find that, over time, your product becomes ever more peripheral to the community you’re trying to support and your product is ever more fungible with others in its class. On the other hand, if you draw the boundary around the product or service and the people and organizations who provide the product or service then, you are on the path of ever tighter interconnect. 

“Who Speaks for Wolf” is a Pattern in a Pattern Language for Collaboration and Cooperation. It is based on a Native American story and shows the importance of making sure that knowledge and perspectives of all relevant stakeholders are taken into account when a change is contemplated. Who is “relevant” may not always be obvious, but, in my experience, many more projects fail or are delayed because of too limited a view than of too broad a view.

Who Speaks for Wolf

Not-Separateness is not only a quality of good design in terms of not overly separating the context and users from the product or service. It is also a good quality for the organization that produces products & services. Of course, some people today must manage a giant amorphous “organization” of tens of thousands of people so they set up divisions, and departments, and groups, and teams, and positions etc. There may indeed be a “UX Department” and a “Software Department” and a “Hardware Department.” That’s all fine. But it is counter-productive if the UX Department sees itself as separate from the rest of the company. To a great extent the success of the UX Department depends on the success of the Hardware and Software Departments. The Sales Department’s success will, of course, depend partly on the skills of the Sales Department. But it will also depend on the success of the UX Department, HW, SW and Services. 

Have you ever had a paper cut? It isn’t just the skin on a quarter inch of the inside of your ring finger that’s cut. You’re cut! It isn’t just that the finger feels pain. You feel pain! That causes you to take steps to ameliorate the pain and to try to make sure it doesn’t happen again. That’s why empathy in leadership is important. A leader must feel empathy for all, or the organization will disintegrate from lack of Not-Separateness. At some point, a raccoon may chew off its own arm in order to escape a trap. 

But it isn’t the first thing that occurs to them every time they experience a thorn in the paw! 

The raccoon doesn’t say to itself:  — “that paw is giving me pain! I’m going to chew it off! Then, it won’t hurt any more.”

Photo by anne sch on Pexels.com

Evolution did not evolve a raccoon that acts that way. Self-mutilation exists but it is typically a last resort.

But not for corporations. It is the first thing they think of:

“Our (you name it) Department is not performing well. Let’s lay them off and outsource it. Better yet, we’ll replace it with AI!”

What does that say to every thinking employee in the entire corporation? It says:

“You know what? All this talk about teamwork and pulling together is a total bunch of bull$hit. You cannot trust management to do what’s best for everyone. You can only trust them to do what’s best for them.” 

Living forms in nature are living forms. Their parts have severe Not-Separateness with the other parts of that form. Often, as in well-functioning families or teams, that extends to all members of the group. 

Not-Separateness is essentially deep cooperation. I give to the larger community by becoming a part of it and doing my part in it. I lend strength to the community. In return, I gain strength from that community. It is not a zero sum game, of course. The community, if it is functional, is much stronger than the sum of the individuals in that community. 

This is so deeply embedded in 4.5 billion years of evolution that it does not surprise me that we recognize beauty as being even more beautiful if it is not separate. Not-Separate enhances beauty because, like all the other properties, it is essential to life. 

Eventually, if humanity is to survive, we will realize that Not-Separateness applies to all of us. We are not there yet. But that doesn’t mean we cannot appreciate and design Not Separateness in our products, in our services, and our lives. 

Photo by Pixabay on Pexels.com

—————-

The Declaration of Interdependence

How the Nightingale Learned to Sing

Roar, Ocean, Roar

Imagine all the people

Cancer Always Loses in the End

Ripples

Author Page on Amazon

Thomas, J.C. and Kellogg, W.A. (1989). Minimizing ecological gaps in interface design, IEEE Software, January 1989.

Thomas, J. C. (2012).   Patterns for emergent global intelligence.   In Creativity and Rationale: Enhancing Human Experience By Design J. Carroll (Ed.), New York: Springer.

Thomas, J. C. (2001). An HCI Agenda for the Next Millennium: Emergent Global Intelligence. In R. Earnshaw, R. Guedj, A. van Dam, and J. Vince (Eds.), Frontiers of human-centered computing, online communities, and virtual environments. London: Springer-Verlag.

Thomas, J.C. (1985). Human factors in IBM. IBM Research Report. RC-11267.  Yorktown Heights, NY: IBM Corporation.

Simplicity and Inner Calm

27 Sunday Sep 2026

Posted by petersironwood in Uncategorized, psychology, management, creativity, politics, nature, design rationale, essay, user experience, HCI, leadership

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aessthetics, architecture, art, beauty, Design, HCI, human factors, leadership, life, lifestyle, management, painting, photography, TNOO, usability, user experience, UX, writing

Simplicity and Inner Calm

(Christopher Alexander, architect and city planner, proposed fifteen properties as characteristic of natural order. I’m considering them one by one in terms of society, design generally, and user experience in particular. “Simplicity and Inner Calm” is number 14.)

Photo by Nikolay Ivanov on Pexels.com

“Send me $50,000 and I’ll enroll you in a two year course in Simplicity and Inner Calm. All you have to do then is follow the twenty-five hundred rules on the Path to Enlightenment while renouncing everything else.”

Somehow, that does not seem to be in the spirit of simplicity and inner calm. Some of the properties I discussed earlier are closer to being about something “out there” that is somewhat measurable; e.g., levels of scale, boundaries, alternating repetition, roughness. Simplicity and Inner Calm are characteristics of things “out there” but they cause or at least resonate with simplicity and inner calm within a person. 

I don’t think it’s reasonable to expect a place to enforce a particular emotional state. If someone arrives at a beautiful still lake with hate and rage in their heart and possesses a determination to stay mad by God because he deserves to be mad! Then the mere presence of beautiful scenery won’t calm them in some immediate and magical way. But, I would bet money that they would be less upset an hour later than when they arrived. 

Photo by Andru00e9 Ulyssesdesalis on Pexels.com

Meanwhile, let’s imagine their identical twin also had an identical quantity of rage in their heart and arrived at a loud buzzing booming construction site and had to sit there for an hour. Such a setting, I would imagine, would do nothing to calm them and might make them even more enraged. 

Photo by Leonid Danilov on Pexels.com

Of course, as any therapist can tell you, what you do inside your head often has more to do with how you feel than does the objective situation. I certainly believe that. Yet, I also believe that situations out there make a difference on average. In my experience, being in a safe situation surrounded by natural beauty tends to make nearly everyone feel better. 

Not all situations “work” equally well for everyone, but for most of the people I have interacted with, views of distant mountains; calm clear lakes; ocean shores; a clearing in the woods — especially if there is a calm animal there; a single tree on a small hilltop — these tend to induce a feeling of simplicity and inner calm. 

There are two things that have amazed me for a long time about natural settings. I think they both relate to why natural settings seem to produce more simplicity and inner calm. 

The first mystery is auditory. I have heard the calls of many creatures in nature. Most are, in and of themselves, attractive. Some are beautiful. A few are more annoying sounds. But for me, at least, they never seem to clash. Walking through a field and forest, I may hear insects, frogs, and a dozen species of birds. But none of them clash. Fancifully, I could say that the auditory sphere in a natural setting reinforces the reality that all life is kin. I am of this world. Wilderness was the home of my ancestors and yours for four billion years. We are all instruments in one orchestra. That adds to inner calm.

The second mystery is visual. I’ve walked through many natural settings and have seen what must be every color possible to see. But the colors never “clash.” How can that be? It’s one thing to mix and match greens and blues. They don’t really seem to clash that much even in artificial settings. But what about pinks, reds, oranges? I’ve seen plenty of people wearing clothing that clashes and likely been guilty of it myself. But autumn leaves? They are all over the place chromatically, but they never clash. This also adds to inner calm.

Photo by Jacob Colvin on Pexels.com

I think the genetic reason that clashes are not prevalent in nature is that we co-evolved with the environment. Perceiving harmony in what is would have been adaptive in two important ways. First, since harmony is the natural state, feeling good while surrounded by harmony would mean that you would feel good most of the time. As Harry Potter once put it, you would have something worth fighting for. If you enjoy life, then, when the going gets tough, you are more likely to tough it out.

Second, when things go sideways in external reality, you would quickly notice the disharmony. While normally, you would feel peaceful, when the birds suddenly start fleeing in one direction and squawking, your feeling would change and you would be more likely to prepare and therefore survive whatever comes next. 

These reasons are manifest in some of the other fifteen properties. For example, the roughness of shape of autumn leaves means that there will be natural variation in color as seen even if they are actually identical (which of course, they are not). Having distributions of color is a kind of “roughness” characteristic of nature’s colors. Clothing on the other hand is another matter. The goal of mass production is lack of variability. So, 10,000 items are precisely the same color (or as close as humanly possible). If one is slightly off, it is noticeable. If each of the 10,000 items were part of a very broad, multidimensional distribution, being slightly more extreme than most would not produce a perception of clash. 

That, to me, is also the problem with monoculture as a social philosophy. I delve into this in more detail in the blog post — “A tight flock united by division.”

A tight flock united by division.

Briefly, the more everyone is supposed to “toe the line” to a particular way of doing things; e.g., which restaurants to go to, which shows to watch, which religion to believe in, what clothes to wear, what food to eat, etc., the more intolerant the society becomes. And the more intolerant it becomes, the more people try desperately to adhere to the middle of the crowded road they share with everyone they know. Everyone who does anything differently comes to be seen as a reproach to the lack of individuality in the middle of the road. And the people who insist that everyone must stay in the middle do not want to move. Not only that. They insist that they are exercising their freedom of choice by being exactly in the middle as determine by everyone else and not at all by them. It is rather humorous at one level and rather pathetic at another.

But just as such sharp and arbitrary boundaries in artificially produced goods mean clashes are more common, so too in human societies, when there is a group that insists everyone be exactly like them and, at the same time, insist that they are expressing their freedom, clashes are inevitable. Harmony and truth are no longer conceived of as being desirable. When people reject the resolution of conflict via agreed upon rules of law, what results is inevitably chaos and death. It is almost the polar opposite of Life. 

Photo by Anna Tarazevich on Pexels.com

Some epidemiologists think the various recent explosion in the variety of pollutants that we are all subject to has resulted in a much higher incidence of auto-immune diseases and allergies. The immune system sees so many different invaders, it has trouble distinguishing real threats (streptococcus, covid, cancer cells) from imaginary ones (peanut oil, cat dander, tree pollen). 

In similar fashion, people stuck on a thin sliver of what they feel is “normal” feel assailed from all sides. They can no longer distinguish real threats (COVID 19, Climate catastrophes, racial inequities) from imaginary ones (chip implantation via needles, Medicare for all, mask mandates). Clash. Clash. Clash. No “Simplicity and inner calm.” 

But from their perspective, there would be “Simplicity and inner calm” if only everyone were just like them! Most will deny this, when put so baldly, but that is essentially what they strive toward.



There can be many such factions, all with different rigid and implacable beliefs or only two (Right/Left; Catholic/Protestant; Striders/Walkers) or really, only one. It only takes one faction to reject all connection to truth in order to destroy simplicity and inner calm — even though, ironically, that is what they are actually trying to achieve. 

Moving from societal beauty to user interfaces, for the most part, I would have to say most UIs lack simplicity and inner calm. They seem to be splattered with functions and features everywhere. This is not surprising since most product managers believe that sales will be greater with more functions and features. 

Photo by Alex Knight on Pexels.com

When I use pages, I would say my user experience is mainly one of simplicity and inner calm. That mainly comes from the fact that my attention is almost entirely on writing and I ignore everything else the interface offers “around the edges” of my vision. Sometimes, something untoward happens and the “harmony” of my environment is temporarily destroyed. Then, I have to stop writing and pop out to the interface level in order to diagnose and fix the problem. Once I do that and return to writing, I again feel “simplicity and inner calm.”

On much rarer occasions, I will wish to do something “unusual”; e.g., I might want to put a table in the text to illustrate a point. Then, before I can work on the task at hand — creating the proper table — I must first search for the proper functionality. Since I do not typically do this, I am like the creature in the forest suddenly alerted to the presence of possible “predators” (such as accidentally destroying my file). 

I have found very few UI’s that, in and of themselves, are conducive to feelings of simplicity and inner calm on first use. I have often come to feel that way fairly quickly after I become conversant with the basic functions. 

Photo by Johannes Plenio on Pexels.com

We evolved for millions of years to resonate with the simplicity and inner calm of peaceful natural settings. It’s not surprising that it would be difficult to reproduce that feelings with an artificial interface. But familiarity does move us in that direction. When I glance at the toolbar across the top of the “Pages” page, e.g., I see a set of pull-down menus. I don’t recall exactly how the entire menu structure is laid out, but I do know how to use it and explore it. This familiarity, in and of itself, helps me feel more serene, more secure, safer. 

Although I am very interested in seeing new ideas in UI, I am more likely to use a different sort of UI if I am seeing a completely new kind of functionality or access to new kinds of data. I would be far less interested in trying a completely new UI for writing, say, or an application that had the same features and functions as Bluesky but with a completely different UI. 

Sometimes, even radicals are conservative. 

If you wanted to design something that evoked simplicity and inner calm, would you yourself want to be in such a state while you were designing? Would that help or hinder you? Or, perhaps you would use the design experience itself to force yourself to experience simplicity and inner calm. Do you have any examples of a UI with simplicity and inner calm? I don’t refer here to an application whose sole purpose is to guide you through meditation. There are surely many things available whose content is meant to evoke simplicity and inner calm. But are there UI’s which, in and of themselves, evoke simplicity and inner calm? 

Photo by Markus Spiske temporausch.com on Pexels.com

——————————

What if…?

The Isle of Right

John vs. Worrier

You must remember this

Shooting the moon

Checks and balances

How the nightingale learned to sing

Ah wilderness

Comes the reign

The jewels of November

The Forest

Somewhere a Bird Cries

The Dance of Billions

Author page on Amazon

Some recommended books:

The Winning Weekend Warrior focuses on the mental game for all sports using examples from tennis, golf, baseball, and other sports. It covers self-talk, imagery, mental practice, strategy, tactics, & sportsmanship. http://tinyurl.com/ng2heq3

Turing’s Nightmares explores the implications and ethics of Artificial Intelligence through fictional short stories. http://tinyurl.com/hz6dg2d

Fit in Bits shows many ways to put more fun, variety, & exercise into daily chores and habits to help with strength, flexibility, fitness, and balance. http://tinyurl.com/h6c7fce

Tales from an American Childhood recounts early experiences mainly in the American Midwest in the 1950’s and relates them to contemporary issues and events. https://tinyurl.com/y9ajvz9j

Dream Planet. Where do you run when the whole world is crumbling under the weight of human folly? When the lethal Conformers invade 22nd century Pittsburgh, escape becomes the top priority for lovebird scavengers Alex and Eva.

https://www.barnesandnoble.com/w/dream-planet-david-thomas/1148566558

11. Roughness

24 Thursday Sep 2026

Posted by petersironwood in creativity, design rationale, essay, HCI, leadership, management, nature, politics, psychology, Uncategorized, user experience

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adaptation, architecture, art, beauty, Design, evolution, HCI, human_factors, leadership, organizations, psychology, Roughness, TNOO, UI, usability, user experience, UX, writing

Roughness

Materials and organisms in the natural world such as wood, rock, clouds, reeds, water, animals, and plants exhibit a degree of roughness. By contrast, mass production ideally produces items that are identical and “sharp” or “smooth” at the boundaries. 

Think of the difference between a hand-thrown pot and a cup that is mass produced. Think of the difference between a cottage made of stone and a house made of prefabricated walls. Think of a path with flagstones and gravel versus a “sidewalk.” 

A rough path may mean it takes you longer to reach your goal. It may also make the entire journey more enlightening and enjoyable.

Perhaps because our ancestors evolved in a natural world for billions of years, we sense that roughness connotes something natural. To me, the property of “roughness” evokes beauty and comfort while perfectly straight lines and rectangles makes me feel as though I am in, and perhaps imprisoned in, a purposefully constructed space. Someone who builds a tower of stones or wooden blocks must be mindful of the whole. Tiny to moderate variations in size, angle and texture mean the constructor must pay careful attention. No two constructions are identical. By contrast, if you and I were to build a plastic rectangular lego tower of a specified size out of specified blocks, the results would be indistinguishable. It is much like cursive script versus printing. It is much like making a stew from scratch versus heating up a TV dinner. 

An old house is prone to crumbling, leaks, misalignments, idiosyncrasies, and cracks. If we allow the house to go completely to ruin, it becomes impractical or at least quite inconvenient to live in. On the other hand, a little bit of roughness gives the abode more character. Since glass is actually a fluid, old windows begin to “flow” slightly introducing irregularities in the glass and therefore in what is seen through the glass. A new window, on the other hand, it typically “perfect” and therefore somewhat boring. 

As a driveway ages, the effect of nearby life and natural forces begins to produce small cracks. These make the surface more interesting visually. It also requires someone walking to pay more attention to where they are stepping; that is, to be more in the moment. Such cracks encourage further incursions by living forms. 

Flowers often exhibit beautiful symmetry. The symmetry, to me, is made more beautiful because of slight variations in the size, angle and color of the individual petals. If instead, you imagine a mathematically perfect flower in which there is zero perceptible difference in the size, angle and color of the petals, do you feel that is more beautiful? Does it make you feel more comfortable? 

I don’t mind that your keyboard may be identical to mine (although probably not quite because my ‘N’ key and ‘A’ key are completely illegible and the ‘E’ key nearly so). I use the computer as a tool. Sometimes, it is used to produce art of one sort or another. But if the art that everyone produced were as much the same as the keyboards, it would seem sterile, non-living, mechanical. A brand new chair will hopefully be evenly painted and the upholstery will be unworn. Over time, the paint will begin to chip and the upholstery will be threadbare and potentially stained in places. 

We have been taught to see such things as flaws, defects, and imperfections. But are they? At some point, the “ravages of time” (or, more accurately, perhaps, the “ravages of entropy”) can make things less than ideally functional. For instance, your tires wear over time and, while they may look more interesting, overly worn tires are a safety hazard for you, for your passengers, and for everyone else on or near the road. 

Similarly, if you must undergo surgery, there’s a good reason for your surgeon to use a machine-tooled scalpel with a “perfect” edge. Railroad cars and railroad tracks that were too diverse from each other might look more interesting, but they would be less safe. 

In many cases, however, roughness does not negatively impact functionality. Roughness looks better without negatively impacting functionality. A chair, baseball glove, or pair of shoes that is slightly worn still works. Perhaps it even works better. A new baseball mitt or pair of shoes needs to be “broken in” for optimal use.

Roughness in the body of a living thing often allows local adaptation. The muscles in your body, for example, are not of a “pre-specified” and precise size. If you exercise a muscle, it will get stronger and grow larger. That allows your body to adapt to your circumstances. Your skin is also capable of growing stronger in places where it needs to be. Your bones grow stronger if they are required to bear a greater load. 

Roughness also exists across individuals within a species. Unlike items that come off the assembly line, items that come from life have slight variations from each other. Some seeds are smaller; some are larger; some are stickier; some are smoother. In some cases, these differences will have no impact on the viability of the seed. But sometimes they might. Life is always trying little “experiments” of small variations to see whether one might be better than another. And, by the way, that is not some minor feature of life: in many ways, that is life: the balance between repetition and variation. 

To me, the roughness of stucco adds to its beauty.

It’s ironic that our minds, which sprung from this balance, often strive for imbalance. To make things “simpler” we like to over-regularize and over-specify. Sometimes, you can go a rather long ways in one particular direction if you take such a drastic step. But if you’ve miscalculated in any way, or if your data were inaccurate, or if conditions changed after your data were collected, you’ll be stuck speeding down a railroad track toward what is now obvious disaster. Trying to impose an absolute pre-specification of action that actually works for every set of circumstances is impossible. To achieve something like it, people sometimes ignore the complexities (the roughness) in real life, and throw things into a small number of buckets. Making decisions on the basis of what bucket something is in, is a lot like judging a book by its cover. Such a process takes things which are, in fact, rough and treats them as though they were mathematically perfect.

Because of the “roughness” of circumstances, many societies have found that putting in place the human judgement of many with countervailing interests often works best. In America, for instance, there are three branches of federal government. The judge conducts a trial, with different people advocating for the two sides. In many cases, a jury of twelve decides guilt or innocence. 

Living systems are robust to various changes in circumstances. A conventional car engine, for instance, is designed to use gasoline or diesel. Put in the wrong fuel and you might ruin the engine. But what about a human being? You can use a tremendous number of different kinds of fuel in the form of food. This is just one of the many millions of ways that various life forms show resilience and robustness. Because life endlessly plays; because it exhibits roughness; because it is diverse; because of this, it adapts and it evolves. 

Meanwhile, as we look at things, we feel intuitively that “Roughness” is conducive to life and is also one of the quintessential aspects of life.  

“One could do worse than be a swinger of birches.” — Robert Frost, Birches

If you have ever swung on birches, or tried to climb any other kind of tree, you know that each is shaped and branched a little differently. From the ground, it’s easy to glance at a tree and think the branches are all basically the same. They are not. And if you are a kid who actually spends a lot of time climbing trees (as I once did), you pay attention to the peculiarities of specific trees and specific branches on those trees. Why? So as not to kill yourself, or worse, hear your parents say “I told you so!” after you break your arm swinging from a tree, say. But the miracle is that, although you are not immortal, you can heal your broken arm. In order for that to happen, obviously, some parts of your body have to do things differently than they have been doing. The “Roughness” of life isn’t only a visual characteristic. It’s also a characteristic of the processes of life. It’s also characteristic of a the processes of a healthy organization. 

As a kid, I would have learned every branch of this tree. Noticing “Roughness” is being mindful and sometimes noticing “Roughness” saves lives.

When it comes to the elements of a User Interface, in most cases, the elements are modeled after machines, not natural phenomena or living things. Is that necessary? Perhaps a designs that incorporates “Roughness” would be harder to program, harder to maintain, and may be even confusing to users? What do you think? 

In physical objects, usage often creates or exacerbates “Roughness.” Could it be advantageous for this to happen with UI elements as well? Would window edges that looked “handmade” or “rough hewn” be more beautiful? More comforting? More usable? Less usable? Right now, conventional systems would make it harder to “calculate” the edges of a rough window than a conventional, straight-edged window. Must it be so? Or, could different architectures make roughness easier to calculate and require fewer resources?

When I think about the broader User Experience in terms of Roughness, what I imagine is that a system that has “Roughness” might mean that there is flexibility in the order in which subtasks are carried out. Perhaps, it means that you offer the user of a word processing application different options in terms of font, style, documents. etc. Perhaps it even means that the user can design their own font or create their own document type. What do you think “Roughness” means in terms of User Experience? 

———————————

A short story about the lack of “Roughness.” 

As Gold as it Gets

As Gold as it Gets

A short story illustrating that likely things are not the only things that happen in life. 

Wilbur’s Story

Wilbur’s Story

Categories are useful. But to guide such a horse effectively, hold the reins loosely. 

What about the butter dish?

Wilbur’s Story

Essays on America: Labelism

Checks and Balances

Bounce

The Winning Weekend Warrior focuses on the mental game for all sports using examples from tennis, golf, baseball, and other sports. It covers self-talk, imagery, mental practice, strategy, tactics, & sportsmanship. http://tinyurl.com/ng2heq3

Turing’s Nightmares explores the implications and ethics of Artificial Intelligence through fictional short stories. http://tinyurl.com/hz6dg2d

Fit in Bits shows many ways to put more fun, variety, & exercise into daily chores and habits to help with strength, flexibility, fitness, and balance. http://tinyurl.com/h6c7fce

Tales from an American Childhood recounts early experiences mainly in the American Midwest in the 1950’s and relates them to contemporary issues and events. https://tinyurl.com/y9ajvz9j

Dream Planet. Where do you run when the whole world is crumbling under the weight of human folly? When the lethal Conformers invade 22nd century Pittsburgh, escape becomes the top priority for lovebird scavengers Alex and Eva.

https://www.barnesandnoble.com/w/dream-planet-david-thomas/1148566558

8. Deep Interlock & Ambiguity

19 Saturday Sep 2026

Posted by petersironwood in creativity, leadership, management, nature, psychology, Uncategorized, user experience

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aesthetics, ambiguity, architecture, art, beauty, Design, HCI, interlock, photography, reading, usabiity, UX, writing

8. Deep Interlock & Ambiguity

In many cases, the various 15 properties that Christopher Alexander poses as characteristic of natural beauty seem to contradict each other. They don’t actually contradict each other. They are forces that sometimes oppose each other or work at angles to each other. This should not surprise us because the same is true of life in general. Of course, I want my bones to be bigger because that will make them stronger. But bigger bones will make me weigh more and demand more nutrition. I want the biggest brain I can have, but a big head makes childbirth almost impossible. One way out of the conundrum is to risk having human babies born way earlier in their development than for most animals. 

So, Good Shape plays off against Deep Interlock & Ambiguity. Partly, it solves this problem by asking a third character in this morality play to step onto the stage — Levels of Scale. If one focuses attention on a single leaf or flower or petal of a flower, one typically finds “Good Shape.” In clusters of well-shaped leaves, or well-shaped flowers, one often sees the flowers or leaves interleaving with the space of other well-shaped leaves or flowers. Thus, at one level of scale, there is Good Shape. But at a higher level, all of these Good Shapes interact with each other so as to interlock. 

Typically, when we design User Experiences, we try to make things clear, not provide “Deep Interlock and Ambiguity” — that sounds like something to be avoided. Perhaps we can see how some decorative elements might exhibit Deep Interlock & Ambiguity, but surely anything that is functional should be clear. 

I think there is a place for Deep Interlock & Ambiguity in design — even functional design. First, we need to distinguish two sorts of reasons for having Deep Interlock & Ambiguity. On the one hand, the application itself may require deep interlock and ambiguity. Insisting that the user make absolute or irrevocable decisions when inappropriate is not good design. The importance of pliant design I’ve mentioned before. Here’s the paper that first introduced me to the term.

https://dl.acm.org/doi/10.1145/302979.303003

Harris, Jed & Henderson, Austin. (1999). A Better Mythology for System Design.. 88-95. 10.1145/302979.303003. 

Consider the relationship between a father and son, or between spouses. Do you think such intimate relationships could be reduced to a black and white set of clear, consistent, precise rules? I doubt it. It’s a “natural relationship” and, as such, will be ill-suited to predefining everything. That doesn’t mean that there need be no rules or that each person themselves should not have a “Good Shape.” Multiple “Good Shapes” with the right spacing will include both “Boundaries” and “Deep Interlock and Ambiguity” and as a result help produce “Positive Space.” 

Who’s pulling whom?

On the other hand … (did you forget the first hand? It was quite a diversion. Well, the first hand was about revealing to the user the Deep Interlock and Ambiguity inherent in their particular context, task, and the field they are working in. That is much better than hiding that truth.

Photo by Nafis Abman on Pexels.com



On the other hand, it may well be worth asking yourself whether you adding ambiguity because you yourself are not really clear about how a function is supposed to work. Or, are you pushing decorative elements so hard that it is obscuring the relationship of functional elements? A decorative example of mis-using “Deep Interlock & Ambiguity” (which I doubt anyone would actually do) would be to interlace two different menus like interlocking fingers of the two hands. It might indeed look more interesting visually. Perhaps someone out there could even make a good argument for having interleaved menus in certain situations. One example that might make some sense would be interlocking food and wine menus. 

Deep Interlock & Ambiguity is not only a property of visual beauty. Good drama, poetry, and music exhibit them as well. In various ways, so also do most sports. Almost every sport allows and requires the athlete to make decisions that have tradeoffs. Should they attempt the riskier move or the safer one? Should they attempt a higher bar, the heavier weight, the faster start? In addition, many sports (soccer, basketball, baseball, American football, hockey, rugby, etc.) have the two teams interacting directly. In tennis and volleyball, the players stay on their own side of the net, but the players need to shift constantly depending on the positions & motions of everyone else and the position & trajectory of the ball and the capabilities of the various players. I think this qualifies as a sort of Deep Interlock and Ambiguity. Such sports seem not that different from a simplification and stylization of the kinds of interactions that take place in natural ecosystem interactions. 

Original drawing by Pierce Morgan

Many simplified childhood games seem quite close to re-enactments of life and death struggles: Hide and Seek, Tag, Hare and Hounds, Cops and Robbers. In my neighborhood, when a new movie came out, the kids would typically go see it and then “play out” variations on the theme of the music. We would play in the setting of the movie (in our imaginations) and adopt characters from the movie. Movies aimed at children typically don’t exhibit quite as much Deep Interlock & Ambiguity as those aimed at older audiences when it comes to Character development. But the plot swings back and forth between apparent victory & defeat, loss & gain, life & death, honor & dishonor, etc. In that sense, the “experiencer” — whether adult or child — doesn’t know (or let themselves know) how things will turn out.

My childhood friends and I moved far beyond re-enacting the actual movie. We improvised entirely new plot lines, we created new lines of deep interlock and ambiguity. Were we taking actions we “really wanted to do” or merely taking actions we thought the characters in the movie would do if they were in the new situation? If we, as an actor, acted too “angry” with one of our friends, would it carry over into real life? If we, as ourselves, acted a certain way and liked it better than our ordinary way, could we “keep” the new behavior (or name, or hairdo, or way of dressing, or favorite expression, etc.?). 

Something like that continues throughout adulthood as well, both within our careers and in our personal lives. Or, at least it may. As you take on different “roles”, you begin to notice that you are better than most people at some things; worse at other things; and roughly average at still other things. You may also notice that doing certain kinds of things is very enjoyable while other activities leave you cold. Your preferences about what you want to do might stay fairly constant through your whole career. Or, your preferences might change quite a bit. If you allow yourself to really “get into a role,” you’ll have a better time deciding if it is a role you really relish. You might find yourself falling in love with your work, which of course is quite different from falling in love with the rewards or the trappings of work. If your life is like most, you’ll spend a lot more time working than enjoying the rewards or trappings of work.

When you read something such as this blog post, you allow for the possibility of interlock and ambiguity with the material, with the author, with another take on reality. The words can resonate (or not) with your own experience and possibly alter things. Moreover, you can leave a message or talk to others and set them on a different course. To read is an act of courage as is any other form of open-hearted and truth-based communication.

——————-

How the Nightingale Learned to Sing

Maybe it needs a new starter

The Joy of Juggling 

Life is a Dance

Choosing the Script

Who are the Speakers for the Dead

Take a Glance Join the Dance

Some recommended books:

The Winning Weekend Warrior focuses on the mental game for all sports using examples from tennis, golf, baseball, and other sports. It covers self-talk, imagery, mental practice, strategy, tactics, & sportsmanship. http://tinyurl.com/ng2heq3

Turing’s Nightmares explores the implications and ethics of Artificial Intelligence through fictional short stories. http://tinyurl.com/hz6dg2d

Fit in Bits shows many ways to put more fun, variety, & exercise into daily chores and habits to help with strength, flexibility, fitness, and balance. http://tinyurl.com/h6c7fce

Tales from an American Childhood recounts early experiences mainly in the American Midwest in the 1950’s and relates them to contemporary issues and events. https://tinyurl.com/y9ajvz9j

Dream Planet. Where do you run when the whole world is crumbling under the weight of human folly? When the lethal Conformers invade 22nd century Pittsburgh, escape becomes the top priority for lovebird scavengers Alex and Eva.

https://www.barnesandnoble.com/w/dream-planet-david-thomas/1148566558

————-

7. Local Symmetries

17 Thursday Sep 2026

Posted by petersironwood in Uncategorized, psychology, creativity, nature, design rationale, user experience, leadership

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architecture, art, books, Design, HCI, photography, psychology, usability, UX

7. Local Symmetries. 

Complex organizations typically have many levels of organizations. In life, there are cells which often have symmetry. The human body has large-scale bilateral symmetry (two eyes, two ears, two arms, two legs, two sides to the brain, etc.). If we look at our hands, we see a thumb and four fingers. Each finger, and the thumb, each have roughly bilateral symmetry. Symmetries such as these are visible. 

There are also often functional symmetries in living systems as well. We breathe in. We breath out. Our nervous system has excitatory circuits and inhibitory circuits. Most complex organisms reproduce via two sexes. Many animals have cycles of sleep and wakefulness. Often birds, and other animals have migrations tied to the cycle of the seasons. Trees are able to draw water up and move water down. 

Photo by Wendy Wei on Pexels.com

The structural symmetries and the functional symmetries are often connected. When a person runs, for example, they use one leg and then the other. In fact, as your left leg goes forward, typically so does your right arm. As you move your right leg forward, you move you left arm forward. As you breathe in, your rib cage expands on both sides symmetrically. As you breathe out, your rib cage contracts on both sides symmetrically. 

Human organizations often have functional symmetries as well as structural symmetries. For example, most organizations have an “onboarding process” as well as a “termination process.” Our physical artifacts often exhibit local symmetries and these are often related to our physical and behavioral symmetries. A long boat, for instance, allows for multiple rowers to row in unison. The boat and oars are symmetrical and so is the rowing of the boat. 

Photo by Patrick Case on Pexels.com

Human artifacts of many scales may exhibit local symmetries for two reasons. First, since most natural living things exhibit local symmetries, copying that may strike us a more beautiful. In addition, if one learns the skills necessary to make the left half of a canoe, one already knows a lot about how to make the right half, provided the canoe has bilateral symmetry. The same is true of an oar, a cane, a bowl, etc. It also makes it easier for the user of the artifact. 

As a user of an artifact such a chair, for example, you come to expect that the right arm rest and the left arm rest will be at the same height and be equally hard. If the arm rests are at different heights, you will, I believe, be more likely to bang your elbow when shifting position or reaching for something. 

One could, no doubt, adapt fairly quickly to a chair which had two different kinds of arm rests, but imagine a keyboard for your computer in which every key was a different size and shape. Or, imagine a piano keyboard in which all the keys were at different spacings, and sizes. 

Local symmetries also offer another advantage. Systems with local symmetries are easier to repair or maintain. Imagine how much more expensive it would be to maintain a piano, for example, if a repair shop had to keep 88 different sizes of keys! In a similar fashion, imagine a programmer decided it would be fun to program every pull-down menu with completely different algorithms. When the next release of the application required changes or additions, it would make understanding and modifying the code much more difficult. 

Why does local symmetry, as opposed to merely, symmetry, make sense? Let’s go back to the chair example. It might make sense for a family to have three chairs for three different sized people; e.g., a papa bear chair, a mama bear chair, and a baby bear chair. Or, think of tee-shirts that come in Small, Medium, Large, and Extra Large. It makes no sense to make every tee-shirt the same size. People differ a lot in their size. But for mass manufacturing, it does make sense that the left and right sleeves match for any particular size. Similarly, it doesn’t matter that the arms on papa bear’s chair are of a different size than the arms on baby bear’s chair. It doesn’t matter if the teeth on my comb are different from the teeth on your comb. It doesn’t matter if the tires on my Saab match the tires on your Range Rover. And, generally, this is true for most artifacts, organizational structures, architectural features, and anatomical features. Local symmetry almost always has four advantages: 1) it adds to beauty. 2) it’s easier to create 3) it’s easier for the user and 4) it’s easier to maintain or repair. 

Design always carries messages. Design which solves our problem or beautifies our world or resonates and echoes the properties of natural beauty carries the messages: “I care. I am a bit like you. I am making this for you and others like us. It shows the beauty that I see is a lot like the beauty (and usefulness) that you see. You are not alone. We are in this together. You and I both belong to “Team Humanity.” 

What could be more important? 

On the other hand, (notice the oblique reference to symmetry) when I look at most of the screens of most of the interfaces I deal with on a daily basis, there is generally a decided lack of local symmetry. Would they look more natural and more beautiful if there were more local symmetry. I think so. What’s less clear is whether they would be more usable. Much of the screen is taken up with words and icons. In drop-down, pop-up, and flyover menus, there are lists which mainly consist of words. Words, by virtue of the nature of written language are of different lengths.

On the other hand, programming languages and functionalities often do exhibit local symmetry. This probably makes learning and using such languages more tractable.

———————————————-

Design – Interpretation Model of Communication

Design Interpretation Analysis of Natural English

Some recommended books:

The Winning Weekend Warrior focuses on the mental game for all sports using examples from tennis, golf, baseball, and other sports. It covers self-talk, imagery, mental practice, strategy, tactics, & sportsmanship. http://tinyurl.com/ng2heq3

Turing’s Nightmares explores the implications and ethics of Artificial Intelligence through fictional short stories. http://tinyurl.com/hz6dg2d

Fit in Bits shows many ways to put more fun, variety, & exercise into daily chores and habits to help with strength, flexibility, fitness, and balance. http://tinyurl.com/h6c7fce

Tales from an American Childhood recounts early experiences mainly in the American Midwest in the 1950’s and relates them to contemporary issues and events. https://tinyurl.com/y9ajvz9j

Dream Planet. Where do you run when the whole world is crumbling under the weight of human folly? When the lethal Conformers invade 22nd century Pittsburgh, escape becomes the top priority for lovebird scavengers Alex and Eva.

https://www.barnesandnoble.com/w/dream-planet-david-thomas/1148566558




The Walkabout Diaries:

The Walkabout Diaries:

The Walkabout Diaries:

Travels with Sadie

Travels with Sadie

Travels with Sadie

4. Alternating Repetition

14 Monday Sep 2026

Posted by petersironwood in creativity, design rationale, HCI, leadership, management, nature, psychology, Uncategorized, user experience

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aesthetics, architecture, art, beauty, Design, diversity, HCI, human factors, leadership, order, repetition, UX, writing

(This is the fourth post in a series of 15 which aim to examine the fifteen properties of natural order postulated by Christopher Alexander. I wonder whether the property of “Alternating Repetition” could be more frequently incorporated into User Experience and what the pros and cons might be).

4. Alternating Repetition

In nature, whether we look at clouds, waves, mountain ranges, forests, plants, the leaves of plants, or almost any animal, we see alternating repetition. Such natural repetition is almost never a precise and complete replication. Just as every reproductive act of life introduces an element of recombination as well as the possibility of mutation, so too the repetitions we see in life are not mathematical. We indeed see patterns repeated in a line or in a circle, but the instances in living things show variation. Similarly, human artifacts made with the hands; e.g., weaving or poetry or rock walls or tennis strokes show repetition but with slight and subtle variations. 

If you look at modern industrial society, you see many examples of exact repetition. It’s true that if you looked at 10,000 examples of the same brand and model pen, or notebook, or scissors, or streak knives under a microscope, you could likely find small differences. To the naked eye, however, they would appear identical. Seeing 10,000 pebbles, leaves, or waves you would always see slight to moderate differences. To me, it makes a difference in terms of beauty. Handmade items and human actions naturally show more variation than things produced by machines. 

Photo by Pixabay on Pexels.com

The various “elements” of a User Interface generally have the feel of something made by machine. The size of all the application icons on the tool bar, for instance, are the same. They are all almost the same exact shape and size. On my tool bar the icons for Finder, Launchpad, Mail, Safari, Chrome, FaceTime, Messenger, Maps, Photos, Contacts, Calendar, Reminders, Notes, System Preferences, Keynote, Pages, Preview, and News are the same. However, the Kindle icon is slightly larger and more square. The Zoom icon is very slightly rounder. [NOTE: This is no longer true in 2026]. The icon for Facebook is still circular, however. In other words, there is some slight variation, but mainly the icons are the same in outline, but different inside. But the set of icons on the tool bar has no sense of “harmony” whatsoever–at least, not to me.

Note that the tool bar is both abnormally homogeneous in terms of positioning and size but completely disconnected in terms of the images which differ in a random disharmony seldom exhibited in nature.

Instead, each icon seems to scream out its individuality without regard to its neighbors. (Which reminds me of things like not masking, getting vaccinations, or telling the truth, for instance, because you don’t feel like it so who cares what the consequences to others are). Anyway, the layout of the toolbar, to me, it’s reminiscent of driving down the highway and seeing a sequence of billboards, each advertising some random product or service in no particular order. Often, each billboard is the same size but they are independent of each other. The one exception I can think of were the “Burma Shave” signs along the highway. Each sign was a small rectangle with several words on it. About a quarter mile down the road, another sign would appear. They were meant to be seen in a specific order and together, they made a kind of “story” which usually rhymed. Typically, the signs touted the joys of the product — “Burma Shave” — or, provided public service announcements about safe driving. 

In the early days of computing, putting in “variation” might have been insanely wasteful of space and processing time. This is no longer true. Yet, the “look and feel” of User Interfaces remains, for the most part, quite “mechanical” or “mechanistic” rather than “natural.” Sometimes modern computer games include naturalistic looking variations in how repeated plants, rocks, clouds, etc. are represented. Look at the palm trees and you will see variations among the trees that are reminiscent of the real palm trees I see every day in the San Diego area. In addition, each tree contains a number of fronds that repeat a generic theme; yet, each front is somewhat different. The fronds themselves each contain alternating repetition, just as do real palm tree fronds. 

We might consider whether it would make sense to put more natural looking alternating repetition into the more utilitarian aspects of user experience. For example, could it be both more beautiful and more useful to allow more variation in the way files are represented visually?  Will Hill, James Hollan, Dave Wrobleski, & Tim McCandless suggested (in a CHI ’92 paper) that physical documents such as manuals naturally show wear in places where they are most used. They suggested that the visual representation of computer documents might be altered slightly to show which documents have been used or edited more and also that such cues within a document might also be useful. 

Hill, William; Hollan, James; Wrobleski, Dave; McCandless, Tim; “Edit Wear and Read Wear,” Human factors in computing systems: Striking a balance. Proceedings of the 9th annual conference. SIGCHI ’92 Proceedings (Monterey, CA), Addison-Wesley, 1992, pp. 3-9.

One of the few cookbooks I use with some regularity is entitled, Fat Free and Flavor Full. The recipe I’ve used many times is the black bean salad. If I open the physical book, it naturally falls open to that particular recipe. “Open Recent” I find a very useful features of the Pages application, but I don’t see a way to look at files based on overall frequency of use. It could be the case that there are some applications for which you would want specific files to be easily found depending on the season or the date. The authors of “Edit Wear and Read Wear” were mainly talking about the utility of encoding information about a file into its visual representation. There might well be aesthetic reasons to do so as well. 

The wooden blinds shown below exhibit alternating repetition in several ways. First, there is the matter of perspective. Some variation almost always presents itself simply by virtue of the fact that I typically view the blinds at an angle and some are closer to me than others. This means that the size, and the retinal shape are slightly different. Second, there is variation caused by slight changes in the angle of the slats relative to vertical. Third, each slat is made of wood. The wood itself shows rings (or more commonly a planar projection of the concentric cylinders. 

The wooden blinds, because they are illuminated from the outside by tree-filtered sunlight also show further variation; however I don’t think that is typically “alternating repetition.” Perhaps not coincidentally, although I find it a little interesting, I can’t say I find that source of variation to be beautiful to me. The other three all add to the aesthetics, at least to me. 

Is it feasible to introduce alternating repetition with slight variation into User Interfaces? Would it be desirable? What negative side-effects might arise? Do you even agree with Christopher Alexander that Alternating Repetition is an aspect of natural beauty and beautiful design? One thing that occurs to me is that if some element of the UI is more variable in outline etc., it may mean that the actions upon that object must deal with that variability. If designed greenfield, that might not be too difficult. But if, for example, the code for dragging and dropping was written under a presumption of zero variability, that might be problematic. What do you think?

——————-

Discussion of Alternating Repetition with additional visual examples can be found here: 

The Fifteen Fundamental Properties of Living Structure. 4. Alternating Repetition

Because Christopher Alexander wrote a book, about the 15 properties, his examples are mainly visual. But alternating repetition as an element of beauty is also clearly present in music and in dance. There is a little of it, it seems to me, in culinary arts as well. I am also reminded of the smelling actions of my dog, Sadie. As she watches an animal without charging it, she waves her nose back and forth quite deliberately in a kind of “sampling” of the surrounding air. A bear will sometimes move sideways with alternating repetition to provide better depth perception of a far away target (like me!). But that’s a story for another time.

Use Diversity as a Resource

The Tree of Life

Life is a Dance

Take a Glance; Join the Dance

Piano

The Winning Weekend Warrior focuses on the mental game for all sports using examples from tennis, golf, baseball, and other sports. It covers self-talk, imagery, mental practice, strategy, tactics, & sportsmanship. http://tinyurl.com/ng2heq3

Turing’s Nightmares explores the implications and ethics of Artificial Intelligence through fictional short stories. http://tinyurl.com/hz6dg2d

Fit in Bits shows many ways to put more fun, variety, & exercise into daily chores and habits to help with strength, flexibility, fitness, and balance. http://tinyurl.com/h6c7fce

Tales from an American Childhood recounts early experiences mainly in the American Midwest in the 1950’s and relates them to contemporary issues and events. https://tinyurl.com/y9ajvz9j

Dream Planet. Where do you run when the whole world is crumbling under the weight of human folly? When the lethal Conformers invade 22nd century Pittsburgh, escape becomes the top priority for lovebird scavengers Alex and Eva.

https://www.barnesandnoble.com/w/dream-planet-david-thomas/1148566558

Strong Centers

12 Saturday Sep 2026

Posted by petersironwood in Uncategorized, psychology, creativity, nature, design rationale, user experience, HCI

≈ Leave a comment

Tags

aesthetics, architecture, art, beauty, Christopher Alexander., Design, HCI, human factors, usability, UX

This is the second posting in a series of fifteen which examine Christopher Alexander’s “Fifteen Properties” of natural beauty and suggests how these properties might apply to user experience design. 

Photo by Dominika Greguu0161ovu00e1 on Pexels.com

2. “Strong centers” is probably one of the most overlooked properties of design in UX/HCI. Often, what exists for the user, from their perspective, is a “sprawl” of functions, tool bars, and icons with no obvious overall or subsidiary organization. A better design would allow the user to quickly find a “home base” from which, it would be obvious where to find subsidiary home bases. There is some sense in which hyperbolic trees, fisheye lenses, and home pages partly begin to address this issue. 

Instead of “strong centers”, the impression I often get in looking at applications for word processing, organizing photos, searching, or dealing with settings is that the designers are given or generate a long list of functions to be supported. Which ones are related to which though? Which ones are central? In many cases, UX practitioners give users (or, more often, potential users), a set of cards with one function each and ask the users to sort these into piles. I am not against such studies, but they are unlikely to lead to a coherent design with a strong center. The users are not, in most cases, professional designers. In many cases, an application is supposed to support many different specific actions. For example, I use word processors to write essays, poems, and fiction. I also use a word processor to proofread something, to re-organize ideas, to “jot down” a bunch of ideas, or to write an outline. These are very different tasks, at least to me. If asked to sort cards, I would do it differently depending on which type of task and which type of material I’m thinking about. 

As I type this, I glance at the “Pages” tool bar which includes: Pages, File, Edit, Insert, Format, Arrange, View, Share, Window, and Help. None of these seems like “home” to the task of writing an essay. I know from experience that if I want to write any kind of material, I must go to the “File” menu even though, as best I can recall, my initial impression of this label was that it would be something to do after I was “done” with the tasks of composing and proofreading. The toolbar gives no impression of their being any “center” at all, let alone a “strong center.” 

In my native language (English), I read from top to bottom, left to right. In that sense, the Apple Icon is first and the “Pages” item is next and it is in bold print. That could be considered a subtle clue that it’s the “most important.” In a way, the items on the “Pages” menu are “meta-items.” In that sense, I suppose you could argue that they are “important” — though as a writer, none of the items seem that important. In fact, if we get right down to it, nothing in Pages really seems designed to support the actual writing process. And, I’m not trying to single out Pages because it’s the only one or the worst one. Lack of a “strong center” seems true of nearly all applications. 

Different people use different processes for writing — and I myself use different processes for different types of writing, so perhaps trying to organize the features and functions so that there is a “strong center”reflective of the “strong center” of the task of writing is just not feasible. I am certainly not advocating for resurrecting “Clippy.” 

Ideally, it should be possible for users to “know where the action is” upon entering an application or a web page.

In another interpretation, “strong centers” refers more to underlying architecture and points to the need for a core of functionality that transcends a specific release or even a specific application. A good underlying architecture will communicate this essential center (related to central purpose or style) to the user.

All too often, the processes involved in developing an application or system themselves have no “strong center.” If the development process is itself a hodgepodge political process of accommodating to a portfolio of features and functions that are advocated for by diverse and uncoordinated stakeholders, then, what one has are a long, unorganized list artificially shoved into menus and sub-menus and toolbars. It should not be surprising then, that the user finds it difficult to know where to begin when first encountering an application — even if the user knows exactly what they want to accomplish. 

Compare and contrast most menu structures and user interfaces with the “strong centers” that are extremely common in life forms. Here are some examples of butterflies. 

Photo by Cu00e1tia Matos on Pexels.com

The central axis includes the head, the thorax and the abdomen. These are in a line in the strong center. Typically, they are colored differently from the wings. The bilateral symmetry of the wings as well as the overall shape reinforces the strong center. Wing patterns, and even the antennae and legs lead the eye back to the strong center. 

Most people think of butterflies as beautiful — and I agree. When asked, however, most people will say they are “brightly colored.” Some are; some are not. But “bright colors” don’t necessarily give rise to beauty!

Strong Centers doesn’t just apply to butterflies. Look at most birds, fish, mammals, insects and you will see how the symmetries and smaller centers reflect and strengthen the major center. Indeed, Strong Centers are not limited to the animal kingdom. The trunk of a tree provides a strong center. Each branch is itself a center and the connection of the branches to the trunk reinforces the strength of the central trunk. 

Photo by Snapwire on Pexels.com

Even single cells often exhibit strong centers (and many of the other 15 properties, by the way). 

It would love to be able to provide you with a process or checklist or formula so you could design user experiences with “strong centers.” I cannot really do that. Nor can anyone else. If you keep it in mind, even at the back of your mind, you may see opportunities to help make that happen with regard to whatever you’re working on. I’m curious to hear your thoughts about “Strong Centers.” 

One technique that may be of some use was shared at a workshop by someone who worked at a car company. In the design of a specific car, the team decided the car would reflect “a professional soccer player out for a night on the town.” This is obviously not a “formula” or “checklist” but it offers a metaphor that designers of car interiors, exteriors, and the drive train could all relate to. A similar method is sometimes used in film — some specific person is responsible for the artistic integrity of the whole.

There is no one way to produce strong centers. Here are some examples from flowers.

———————

Here we see that each flower has a strong center and the central stem provides a strong center for the entire plant.

Some useful links to more information, discussion, and examples relevant to “strong centers” or to the fifteen properties.

Christopher Alexander – Fundamental Property 2: Strong Centers

https://www.archdaily.com/626429/unified-architectural-theory-chapter-11

Roar, Ocean, Roar!

Imagine All the People

The Dance of Billions

Somewhere a Bird Cries

How the Nightingale Learned to Sing

Piano!

Unite!

Fifteen Properties of Natural Beauty & UX/HCI

09 Wednesday Sep 2026

Posted by petersironwood in Uncategorized, psychology, creativity, nature, design rationale, user experience, HCI

≈ 1 Comment

Tags

architecture, art, books, Design, gratitude, HCI, human factors, mindfulness, photography, Travel, UX

Photo by Dominika Greguu0161ovu00e1 on Pexels.com

This is an introduction to a series of blog posts on the “Nature of Beauty.” 

Christopher Alexander was an architect and city planner. In his MIT dissertation, Alexander took a very mathematical approach to design. In our studies at IBM Research on the “Psychology of Design” I first ran across that work (Notes on the Synthesis of Form). Later in his career, however, he took a quite different approach to design. With an international team, he visited many different parts of the world to see what “worked” in terms of architecture and city planning. The results were documented in the form of a “Pattern Language.” In this sense, a “Pattern” is the named solution to a recurring problem. A “Pattern Language” is a connected lattice of Patterns that together, “cover” a field. 

Others (including me) have emulated his approach for other fields such as pedagogy, organizational change, object-oriented programming, software development processes, and human-computer interaction. A few years ago, I suggested such Patterns for collaboration and teamwork. Here’s a link to the introduction of that effort. Here’s a link to the index of those Patterns. 

Still later in life, Christopher Alexander embarked on a project called The Nature of Order. This work is documented in a series of four books. In the first book, he proposes fifteen properties of good form in nature — and in beautiful artifacts. Explication and example will be needed to appreciate what these properties mean. In this post, I list the fifteen and will attempt to explain the first one with respect to UX and Human Computer Interaction.

OLYMPUS DIGITAL CAMERA

First, you might be wondering what relevance these fifteen properties of nature might have to interface design. After all, can’t the designer just test out their ideas empirically until a UX design is shown to be usable, learnable, and perhaps enjoyable as well? Well, sure. Ideally, every possibility could be explored and tested empirically. 

But how many possibilities are there? Without any guiding principles, there are not only more possibilities than can be tested by you. There are more possibilities than there are atoms in the universe. Imagine a very simple interface on a small mobile device. Let’s say there are only ten screens in your whole application. The iPhone 12, for instance, has nearly 3 million pixels. 24-bit color allows over 16 million colors per pixel. If you literally tested out every possible arrangement, this would mean 16 million to the 3 millionth power for each of the ten screens!! The number of atoms in the universe is estimated to be between 10**78 and 10**82. Obviously, this is far less than 16,000,000**3,000,000 !! 

Of course, I’m not suggesting that anyone would attempt a pixel by pixel test of an interface, but the general point remains: you need some way to limit testing to reasonable alternatives. The notion of using these fifteen properties is not that they dictate a particular design nor that you don’t need to do any empirical testing. Rather, the fifteen properties could be used to help guide design. The properties could be thought of as reducing the search space. 

Here are the fifteen properties: 

  1. Levels of Scale
  2. Strong Centers
  3. Boundaries
  4. Alternating Repetition
  5. Positive Space
  6. Good Shape
  7. Local Symmetries
  8. Deep Interlock and Ambiguity
  9. Contrast
  10. Gradients
  11. Roughness
  12. Echoes
  13. The Void
  14. Simplicity and Inner Calm
  15. Not-separateness

Perhaps the names themselves might resonate with your own sense of aesthetics for design and composition, but let’s review them one by one. 

The first is “Levels of Scale.” 

Photo by Roney John on Pexels.com

When it comes to natural beauty, a few moments reflection may provide you with many examples. Christopher Alexander claims this property is also present in traditional art and architecture across many cultures. As you see something such as, e.g., the Taj Mahal or the Parthenon in the distance, you see a beautiful shape. As you approach it, you will see more and more levels of scale. By contrast, many modern buildings are largely featureless between the overall shape and the texture of the building material. 

If your design has multiple levels of scale, it will be easier for your user to orient themselves; to know “where they are” in the application and therefore easier to take appropriate action. Not only are you making their “task” more doable, you are providing a kind of entertainment. If it works well, they will be thinking of the building and perhaps its significance the entire time they approach the building. By contrast, if I approach a modern no-scales building, I bore quickly and, like most people, there are a whole host of things waiting to be thought about. So, I’ll mainly be thinking of one or my problems and largely ignoring your building and what it stands for. Reflect on your own experiences and see whether you agree. Lincoln Memorial, Winchester Cathedral, Temple in Kyoto: they are completely different from each other and yet in this way, they are all the same: they keep your attention focused on the moment. In other words, they help you be fully alive and awake. In the best circumstance, they also elicit some awe and gratitude not only for the geniuses who designed but also for the many laborers who found and mined the materials, constructed something from it, and even those whose taxes paid those workers.

Levels of Scale is something to keep in mind with respect to your design — whether hardware, software, documentation, story, or a building. 

How could you use or see “Levels of Scale” as a desirable property of what you are doing right now? 

———————————-

Some references to Pattern Languages in HCI. 

Pan, Y., Roedl, D., Blevis, E. and Thomas, J. (2012), Re-conceptualizing Fashion in Sustainable HCI. Designing Interactive Systems conference.  New Castle, UK, June 2012.

Thomas, J. C. (2012).   Patterns for emergent global intelligence.   In Creativity and Rationale: Enhancing Human Experience By Design J. Carroll (Ed.), New York: Springer.

Thomas, J. (2012). Edging Toward Sustainability. CHI Workshop Position Paper for Simple Sustainable Living. CHI 2012, Austin, Texas.

Thomas, J. (2012), Enhancing Collective Intelligence by Enhancing Social Roles and Diversity. CSCW Workshop Position Paper for Collective Intelligence and Community Discourse and Action. CSCW 2012, Bellvue, WA.

Thomas, J. (2011), Toward a pattern language for socializing technology for seniors. Workshop position paper accepted for CSCW 2011 workshop: Socializing technology among seniors in China, Hangzhou, China, March 19-23.

Thomas, J. (2011). Toward a Socio-Technical Pattern Language for Social Systems in China and the World. Workshop position paper accepted for CSCW 2011 workshop: Designing social and collaborative systems for China. Hangzhou, China, March 19-23.

Thomas, J. (2011). Toward a Socio-Technical Pattern Language for Social Media and International Development. Workshop position paper accepted for CSCW 2011 workshop: Social media for development, Hangzhou, China, March 19-23.

Bonanni, L., Busse, D. Thomas, J., Bevis, E., Turpeinen, M. & Jardin, N. (2011). Visible, actionalble, sustainable: Sustainable interactin design in professional domains.  Workshop accepted for CHI 2011. Vancouver, B.C., May 7-12.

Thomas, J. (2011). Focus on Ego as Universe and Everyday Sustainability. Workshop position paper accepted for CHI 2011 workshop: Everyday practice and sustainable HCI: Understanding and learning from cultures of (un)sustainability.  Vancouver, B.C., May 7-12.

https://www.researchgate.net/publication/2242380_A_Pattern_Approach_to_Interaction_Design

Click to access dearden-patterns-hci09.pdf

https://www.mit.edu/~jtidwell/common_ground.html

Thomas, J. C. (2018), Building common ground in a wildly webbed world: a pattern language approach. Journal of Information, Communication and Ethics in Society, 16 (3), 338-350.

——————————-

Some recommended books:

The Winning Weekend Warrior focuses on the mental game for all sports using examples from tennis, golf, baseball, and other sports. It covers self-talk, imagery, mental practice, strategy, tactics, & sportsmanship. http://tinyurl.com/ng2heq3

Turing’s Nightmares explores the implications and ethics of Artificial Intelligence through fictional short stories. http://tinyurl.com/hz6dg2d

Fit in Bits shows many ways to put more fun, variety, & exercise into daily chores and habits to help with strength, flexibility, fitness, and balance. http://tinyurl.com/h6c7fce

Tales from an American Childhood recounts early experiences mainly in the American Midwest in the 1950’s and relates them to contemporary issues and events. https://tinyurl.com/y9ajvz9j

Dream Planet. Where do you run when the whole world is crumbling under the weight of human folly? When the lethal Conformers invade 22nd century Pittsburgh, escape becomes the top priority for lovebird scavengers Alex and Eva.

https://www.barnesandnoble.com/w/dream-planet-david-thomas/1148566558

The Walkabout Diaries are photo-essays inspired by walks in nearby neighborhoods, gardens, and parks.

The Walkabout Diaries

Where is the door?

21 Sunday Sep 2025

Posted by petersironwood in Uncategorized

≈ Leave a comment

Tags

A Pattern Language., architecture, Christopher Alexander., Customer experience, Design, HCI, history, photography, Travel, userexperience, UX

Photo by Laura Tancredi on Pexels.com

Symmetry is often a really nice thing.  I like snowflakes as much as anyone.  So long as no more than three gather at any one time.

And, I suppose that making a building with four identical sides probably saves marginally on costs.  Maybe.  

But if you really care about the “customer experience” wouldn’t it be nice if the customer can figure out how to enter your building? I mean, enter it without walking the perimeter a few times.  Especially if it is raining, or sleeting, or boiling hot, or dark.  There is a variant on this which is popular with convention centers.  They are required by law, I guess, to have approximately 480 doors or more.  However, typically, all but one or two of these are locked.   

Perhaps an argument could be made that making the entrance to a building difficult to detect adds to security.  I seriously doubt it.  A determined burglar could find out by trial and error or observation where the door is.   That burglar has plenty of time because you see, being a burglar is how they make their living.  But not so your customer.  Much as you would love to *think* that your customer has nothing better to do than circle your establishment trying to find a way in, they do, in reality, have better things to do.  

Recently, I had occasion to visit Paris.  Do you have any trouble finding the doors in the building shown?  Last year was the 850th birthday for Notre Dame.  So, having an entrance which is distinctly visible from a distance as an entrance, we would have to say is a *solved problem*, n’est pas?  Check out Pattern 110, Main Entrance, in Christopher Alexander’s A Pattern Language.

Image


A Context-setting entrance

Roar, Ocean, Roar

The Dance of Billions

Peace

The First Ring of Empathy

Travels with Sadie 1

The Walkabout Diaries: Bee Wise

Imagine All the People

7. Local Symmetries

08 Sunday Aug 2021

Posted by petersironwood in Uncategorized

≈ 1 Comment

Tags

architecture, Design, HCI, psychology, usability, UX

7. Local Symmetries. 

Complex organizations typically have many levels of organizations. In life, there are cells which often have symmetry. The human body has large-scale bilateral symmetry (two eyes, two ears, two arms, two legs, two sides to the brain, etc.). If we look at our hands, we see a thumb and four fingers. Each finger, and the thumb, each have roughly bilateral symmetry. Symmetries such as these are visible. 

There are also often functional symmetries in living systems as well. We breathe in. We breath out. Our nervous system has excitatory circuits and inhibitory circuits. Most complex organisms reproduce via two sexes. Many animals have cycles of sleep and wakefulness. Often birds, and other animals have migrations tied to the cycle of the seasons. Trees are able to draw water up and move water down. 

Photo by Wendy Wei on Pexels.com

The structural symmetries and the functional symmetries are often connected. When a person runs, for example, they use one leg and then the other. In fact, as your left leg goes forward, typically so does your right arm. As you move your right leg forward, you move you left arm forward. As you breathe in, your rib cage expands on both sides symmetrically. As you breathe out, your rib cage contracts on both sides symmetrically. 

Human organizations often have functional symmetries as well as structural symmetries. For example, most organizations have an “onboarding process” as well as a “termination process.” Our physical artifacts often exhibit local symmetries and these are often related to our physical and behavioral symmetries. A long boat, for instance, allows for multiple rowers to row in unison. The boat and oars are symmetrical and so is the rowing of the boat. 

Photo by Patrick Case on Pexels.com

Human artifacts of many scales may exhibit local symmetries for two reasons. First, since most natural living things exhibit local symmetries, copying that may strike us a more beautiful. In addition, if one learns the skills necessary to make the left half of a canoe, one already knows a lot about how to make the right half, provided the canoe has bilateral symmetry. The same is true of an oar, a cane, a bowl, etc. It also makes it easier for the user of the artifact. 

As a user of an artifact such a chair, for example, you come to expect that the right arm rest and the left arm rest will be at the same height and be equally hard. If the arm rests are at different heights, you will, I believe, be more likely to bang your elbow when shifting position or reaching for something. 

One could, no doubt, adapt fairly quickly to a chair which had two different kinds of arm rests, but imagine a keyboard for your computer in which every key was a different size and shape. Or, imagine a piano keyboard in which all the keys were at different spacings, and sizes. 

Local symmetries also offer another advantage. Systems with local symmetries are easier to repair or maintain. Imagine how much more expensive it would be to maintain a piano, for example, if a repair shop had to keep 88 different sizes of keys! In a similar fashion, imagine a programmer decided it would be fun to program every pull-down menu with completely different algorithms. When the next release of the application required changes or additions, it would make understanding and modifying the code much more difficult. 

Why does local symmetry, as opposed to merely, symmetry, make sense? Let’s go back to the chair example. It might make sense for a family to have three chairs for three different sized people; e.g., a papa bear chair, a mama bear chair, and a baby bear chair. Or, think of tee-shirts that come in Small, Medium, Large, and Extra Large. It makes no sense to make every tee-shirt the same size. People differ a lot in their size. But for mass manufacturing, it does make sense that the left and right sleeves match for any particular size. Similarly, it doesn’t matter that the arms on papa bear’s chair are of a different size than the arms on baby bear’s chair. It doesn’t matter if the teeth on my comb are different from the teeth on your comb. It doesn’t matter if the tires on my Saab match the tires on your Range Rover. And, generally, this is true for most artifacts, organizational structures, architectural features, and anatomical features. Local symmetry almost always has four advantages: 1) it adds to beauty. 2) it’s easier to create 3) it’s easier for the user and 4) it’s easier to maintain or repair. 

Design always carries messages. Design which solves our problem or beautifies our world or resonates and echoes the properties of natural beauty carries the messages: “I care. I am a bit like you. I am making this for you and others like it. It shows the beauty that I see is a lot like the beauty (and usefulness) that you see. You are not alone. We are in this together. You and I both belong to “Team Humanity.” 

What could be more important? 

———————————————-

Design – Interpretation Model of Communication

Design Interpretation Analysis of Natural English

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