Thursday, 19 April 2012

The relationship between "New Aesthetic" and Computationally Minimal Art

A couple of weeks ago, something called "New Aesthetic" was brought to my attention. It is difficult to find any sort of coherent definition for the idea, but it seems like an umbrella label for a wide variety of visual things that somehow look computational, often in not-so-computational contexts. The main spreader of the meme is apparently a Tumblr blog that collects pictures of things such as pixellated glitches in textiles, real-life voxel sculptures, mugs decorated with website graphics, digitally glitched photographs, satellite images as well as all kinds of other things that evocate suitably futuristic associations.

Despite the profound vagueness of the umbrella term, it is not difficult to notice the general trend it refers to. Just a decade ago, a computationally inspired real-life object would have been a unique novelty item, but nowadays there are such things all around us. I mentioned an aspect of this trend back in 2010 in my article on Computationally Minimal Art, where I noticed that "retrocomputing esthetics" is not just thriving in its respective subcultures (such as demoscene or chip music scene) but popping up every now and then in mainstream contexts as well -- often completely without the historical or nostalgic vibe usually associated with retrocomputing.

As the concept of "New Aesthetic" overlaps a lot of my ponderings, I now feel like building some semantics in order to relate the ideas to one another:

"New Aesthetics", as I see it, is a rather vague umbrella term that contains a wide variety of things but has a major subset that could be called "Computationally Inspired".

"Computationally Inspired" is anything that brings the concepts and building blocks of the "digital world" into non-native contexts. T-shirts, mugs and other real-life objects decorated with big-pixel art or website imagery are obvious examples. In a wide sense, even anything that makes the basic digital building blocks more visible within a digital context might be "Computationally Inspired" as well: big-pixel low-fi computer graphics on a new high-end computer, for example.

"Computationally Minimal" is anything that uses a very low amount of computational resources, often making the digital building blocks such as pixels very discernible. Two years ago, I defined "Computationally Minimal Art" as follows: "[A] form of discrete art governed by a low computational complexity in the domains of time, description length and temporary storage. The most essential features of Computationally Minimal Art are those that persist the longest when the various levels of complexity approach zero."

We can see that Computationally Inspired and Computationally Minimal have a lot of overlap but neither is a subset of another. Cross-stitch patterns are CM almost by definition as they have a limited number of discrete "pixels" with a limited number of different colors, but they are not CI unless they depict something that comes from the "computer world", such as video game characters. On the other hand, a sculpture based on a large amount of digitally corrupted data is definitely CI but falls out of the definition of CM due to the size of the source data.

What CM and CI and especially their intersection have in common, however, is the tendency of showing off discrete digital data and/or computational processes, which gives them a lot of esthetic similarity. In CI, this is usually a goal in itself, while in CM, it is most often a side-effect of the related goal of low computational complexity. In either case, however, the visual result often looks like big-pixel graphics. This has caused confusion among many New Aesthetic bloggers who use adjectives such as "retro", "8-bit" or "nostalgic" when referring to this phenomenon, when what they are witnessing is just a way how the essence of digital technology tends to manifest visually.

There has been a lot of on-line discussion revolving New Aesthetic during the past month, and a lot of it seems like pseudo-intellectual, reality-detached mumbo-jumbo to me. In order to gain some insight and substance, I would like to recommend all the bloggers to take serious a look into the demoscene and other established forms of computer-centric expression. You may also find out that a lot of this stuff is actually not that new to begin with, it has just been gaining a lot of new momentum recently.

Saturday, 17 March 2012

"Fabric theory": talking about cultural and computational diversity with the same words

In recent months, I have been pondering a lot about certain similarities between human languages, cultures, programming languages and computing platforms: they are all abstract constructs capable of giving a unique form or flavor to anything that is made with them or stems from them. Different human languages encourage different types of ideas, ways of expression, metaphors and poetry while discouraging others. Different programming languages encourage different programming paradigms, design philosophies and algorithms while discouraging others. The different characteristics of different computing platforms, musical instruments, human cultures, ideologies, religions or subcultural groups all similarly lead to specific "built-in" preferences in expression.

I'm sure this sounds quite meta, vague or superficial when explained this way, but I'm convinced that the similarities are far more profound than most people assume. In order to bring these concepts together, I've chosen to use the English word "fabric" to refer to the set of form-giving characteristics of languages, computers or just about anything. I've picked this word partly because of its dual meaning, i.e. you can consider a fabric a separate, underlying, form-giving framework just as well as an actual material from which the different artifacts are made. You may suggest a better word if you find one.


The fabric of a human language stems (primarily) from its grammar and vocabulary. The principle of lingustic relativity, also known as the Sapir-Whorf hypothesis, suggests that language defines a lot about how our ways of thinking end up being like, and there is even a bunch of experimental support for this idea. The stronger, classical version of the hypothesis, stating that languages build hard barriers that actually restrict what kind of ideas are possible, is very probably false, however. I believe that all human languages are "human-complete", i.e. they are all able to express the same complete range of human thoughts, although the expression may become very cumbersome in some cases. In most Indo-European languages, for example, it is very difficult to talk about people without mentioning their real or assumed genders all the time, and it may be very challenging to communicate mathematical ideas in an Aboriginal language that has a very rudimentary number system.

Many programmers seem to believe that the Sapir-Whorf hypothesis also works with programming languages. Edsger Dijkstra, for example, was definitely quite Whorfian when stating that teaching BASIC programming to students made them "mentally mutilated beyond hope of regeneration". The fabric of a programming language stems from its abstract structure, not much unlike those of natural languages, although a major difference is that the fabrics of programming languages tend to be much "purer" and more clear-cut, as they are typically geared towards specific application areas, computation paradigms and software development philosophies.

Beyond programming languages there are computer platforms. In the context of audiovisual computer art, the fabric of a hardware platform stems both from its "general-purpose" computational capabilities and the characteristics of its special-purpose circuitry, especially the video and sound hardware. The effects of the fabric tend to be the clearest in the most restricted platforms, such as 8-bit home computers and video game consoles. The different fabrics ("limitations") of different platforms are something that demoscene artists have traditionally been concerned about. Nowadays, there is even an academic discipline with an expanding series of books, "Platform Studies", that asks how video games and other forms of computer art have been shaped by the fabrics of the platforms they've been made for.

The fabric of a human culture stems from a wide memetic mess including things like taboos, traditions, codes of conduct, and, of course, language. In modern societies, a lot stems from bureaucratic, economic and regulatory mechanisms. Behavior-shaping mechanisms are also very prominent in things like video games, user interfaces and interactive websites, where they form a major part of the fabric. The fabric of a musical instrument stems partly from its user interface and partly from its different acoustic ranges and other "limitations". It is indeed possible to extend the "fabric theory" to quite a wide variety of concepts, even though it may get a little bit far-fetched at times.

Noticing one's own box

In many cases, a fabric can become transparent or even invisible. Those who only speak one language can find it difficult to think beyond its fabric. Likewise, those who only know about one culture, one worldview, one programming language, one technique for a specific task or one just-about-anything need some considerable effort to even notice the fabric, let alone expand their horizons beyond it. History shows that this kind of mental poverty leads even some very capable minds into quite disastrous thoughts, ranging from general narrow-mindedness and false sense of objectivity to straightforward religious dogmatism and racism.

In the world of computing, difficult-to-notice fabrics come out as standards, de-facto standards and "best practices". Jaron Lanier warns about "lock-ins", restrictive standards that are difficult to outthink. MIDI, for example, enforces a specific, finite formalization of musical notes, effectively narrowing the expressive range of a lot of music. A major concern risen by "You are not a gadget" is that technological lock-ins of on-line communication (e.g. those prominent in Facebook) may end up trivializing humanity in a way similar to how MIDI trivializes music.

Of course, there's nothing wrong with standards per se. Standards, also including constructs such as lingua francas and social norms, can be very helpful or even vital to humanity. However, when a standard becomes an unquestionable dogma, there's a good chance for something evil to happen. In order to avoid this, we always need individuals who challenge and deconstruct the standards, keeping people aware of the alternatives. Before we can think outside the box, we must first realize that we are in a box in the first place.


In order to make a fabric more visible and tangible, it is often useful to introduce artificial constraints to "tighten it up". In a human language, for example, one can adopt a form of constrained writing, such as a type of poetry, to bring up some otherwise-invisible aspects of the linguistic fabric. In normal, everyday prose, words are little more than arbitrary sequences of symbols, but when working under tight constraints, their elementary structures and mutual relationships become important. This is very similar to what happens when programming in a constrained environment: previously irrelevant aspects, such as machine code instruction lengths, suddenly become relevant.

Constrained programming has long traditions in a multitude of hacker subcultures, including the demoscene, where it has obtained a very prominent role. Perhaps the most popular type of constraint in all hacker subcultures in general is the program length constraint, which sets an upper limit to the size of either the source code or the executable. It seems to be a general rule that working with ever smaller program sizes brings the programmer ever closer to the underlying fabric: in larger programs, it is possible to abstract away a lot of it, but under tight constraints, the programmer-artist must learn to avoid abstraction and embrace the fabric the way it is. In the smallest size classes, even such details as the ordering of sound and video registers in the I/O space become form-giving, as seen in the sub-32-byte C-64 demos by 4mat of Ate Bit, for example.


Sometimes a language or a platform feels tight enough even without any additional constraints. A lot of this feeling is subjective, caused by the inability to express oneself in the previously learned way. When learning a new human language that is completely different to one's mother tongue, one may feel restricted when there's no counterpart for a specific word or grammatical cosntruct. When encountering such a "boundary", the learner needs to rethink the idea in a way that goes around it. This often requires some mind-bending. The same phenomenon can be encountered when learning different programming languages, e.g. learning a declarative language after only knowing imperative ones.

Among both human and programming languages, there are experimental languages that have been deliberately constructed as "mind-benders", having the kind of features and limitations that force the user to rethink a lot of things when trying to express an idea. Among constructed human languages, a good example is Sonja Elen Kisa's minimalistic "Toki Pona" that builds everything from just over 120 basic words. Among programming languages, the mind-bending experiments are called "esoteric programming languages", with the likes of Brainfuck and Befunge often mentioned as examples.

In computer platforms, there's also a lot of variance in "objective tightness". Large amounts of general-purpose computing resources make it possible to accurately emulate smaller computers; that is, a looser fabric may sometimes completely engulf a tighter one. Because of this, the experience of learning a "bigger" platform after a "smaller" one is not usually very mind-bending compared to the opposite direction.

Nothing is neutral

Now, would it be possible to create a language or a computer that would be totally neutral, objective and universal? I don't think so. Trying to create something that lacks fabric is like trying to sculpt thin air, and fabrics are always built from arbitrarities. Whenever something feels neutral, the feeling is usually deceptive.

Popular fabrics are often perceived as neutral, although they are just as arbitrary and biased as the other ones. A tribe that doesn't have very much contact with other tribes typically regards its own language and culture as "the right one" and everyone else as strange and deviant. When several tribes come together, they may choose one language as their supposedly neutral lingua franca, and a sufficiently advanced group of tribes may even construct a simplified, bland mix-up of all of its member languages, an "Esperanto". But even in this case, the language is by no means universal; the fabric that is common between the source languages is still very much present. Even if the language is based on logical principles, i.e. a "Lojban", the chosen set of principles is arbitrary, not to mention all the choices made when implementing those principles.

Powerful computers can usually emulate many less powerful ones, but this does not make them any less arbitrary. On the contrary, modern IBM PC compatibles are full of arbitrary desgin choices stacked on one another, forming a complex spaghetti of historical trials and errors that would make no sense at all if designed from scratch. The modern IBM PC platform therefore has a very prominent fabric, and the main reason why it feels so neutral is its popularity. Another reason is that the other platforms have many a lot of the same design choices, making today's computer platforms much less diverse than what they were a couple of decades ago. For example, how many modern platforms can you name that use something other than RGB as their primary colorspace, or something other than a power of two as their word length?

Diversity is diminishing in many other areas as well. In countries with an astounding diversity, like Papua-New-Guinea, many groups are abandoning their unique native languages and cultures in favor of bigger and more prestigious ones. I see some of that even in my own country, where many young and intelligent people take pride in "thinking in English", erroreusnly assuming that second-language English would be somehow more expressive for them than their mother tongue. In a dystopian vision, the diversity of millennia-old languages and cultures is getting replaced by a global English-language monoculture where all the diversity is subcultural at best.


It indeed seems to be possible to talk about human languages, cultures, programming languages, computing platforms and many other things with similar concepts. These concepts also seem so useful at times that I'm probably going to use them in subsequent articles as well. I also hope that this article, despite its length, gives some food for thought to someone.

Now, go to the world and embrace the mind-bending diversity!