Reflections on Technology, Media & Culture

Facebook and Twitter have “deplatformed” Trump. In any grievance it’s shrewd practice to focus on just one offence rather than confuse the case with a barrage consisting of all the complaints you could advance.  Following that restrained practice, Twitter Inc. drew attention to Trump’s 2 most recent tweets. In their Twitter blog the company declared: … Continue reading →

When did you decide to grow a beard? Not every event over which a person assumes agency has a singular moment or an origin. Nor does it, of necessity, involve a decision. A slightly less gendered scenario is that of strolling through the neighbourhood — perhaps as exercise during pandemic restrictions. Sometimes we just wander … Continue reading →

Trumpian-style relativism and denialism assumes the right to make up some numbers and refuse others: votes, profits, employment rates, infections and crowd sizes. That’s to mistake variable for uncertain, unreliable and arbitrary as if “up for grabs.” Variables 101 In maths and logic a variable is a symbol standing for something unspecified, though you might … Continue reading →

It came upon a midnight clear. Clarity and its converse unclarity are in the air this season: as people seek clarity on what they can and cannot do during this phase of the pandemic. Clarity is about optics. Something is clear if the perception of it is unobstructed by darkness, fog, blur, glare, distortion or … Continue reading →

“Normal” is an architectural term, according to the OED derived from the Latin noun norma which was a square of wood used by carpenters and masons for creating right angles. As known to any student of geometry, a line (or wall) is normal to another if it meets it at right angles. The term has … Continue reading →

In cryptographic communication, a sender has a message in mind then converts that into a coded signal. The sender dispatches the signal through a communication channel and it is picked up by a recipient who decodes the message. The coding and decoding algorithms at either end of the channel select from an array of alternative … Continue reading →

The satirical fantasy The Good Place is ostensibly about the afterlife, and features different mechanisms for moving between the Good Place, the Bad Place, the Medium Place and Earth via magical doors, a hot air balloon, a train, a snap of the fingers, pneumatic chutes and giant round doors that clamp shut like the iris … Continue reading →

He’s making few public appearances but “the pixels of his Twitter feed continued to live in a world of alternative reality,” echoed the Washington Post this week about Trump. Meanwhile, His Dark Materials that also taps into a multiverse of realities is back on the BBC. A helpful entry in Wikipedia under multiverse lists several … Continue reading →

Cryptography hides messages from the senses, observation and interpretation. It belongs within an array of practices that fit comfortably within the field of semiotics. I’m content to think that cryptographic practices extend C.S. Peirce’s semiological pragmatism. After all, messages hidden in code are signs. On the subject of messaging, I’m also interested in hiddenness as … Continue reading →

Twitter replaced some of Trump’s recent tweets about the US election with the message: “Some or all of the content shared in this Tweet is disputed and might be misleading about an election or other civic process” — followed by a link to Twitter’s Civic Integrity Policy. As votes for Joe Biden (D) secured the … Continue reading →

My online searches into the mathematical techniques of Hidden Markov Models (HMM) led me to this diagram, known as a numogram. I have redrawn it here from the numerous instances on websites and books connected with the short-lived CCRU (Cybernetic Culture Research Uni) at the University of Warwick, and its legacies. At face, it’s a … Continue reading →

A substitution cipher is one of the simplest methods for encrypting a message. A unique symbol stands in place of every letter in the hidden message. The symbol set can be just about anything, as long as each symbol maps uniquely to the letters of whatever alphabet you are using for the message you wish … Continue reading →

A city that’s legible is easy to understand and to navigate, i.e. to read. You can read a city’s people, moods, signs, and what it denotes and connotes. In a previous post I explored the prospect that you might write a city, as well as read it. According to this theory, a city participates in … Continue reading →

With more time spent teaching in front of a computer I’ve learnt more about developments in automated speech recognition. Software that turns speech into text (as transcriptions and closed captions) is a major accomplishment. Practically it’s “artificial intelligence” (AI). Researchers attempt the same with music: turning an audio music track into musical notation: notes on … Continue reading →

What’s it like to be liked? The WordPress blogging platform delivers analytics for each blog post providing the author with stats on visits, likes and comments. You would expect older posts to have more visits than recent visits. So it’s hard to compare the popularity of posts. But you can compare these stats if you … Continue reading →

It’s a banal truism: events follow one another in sequence, inexorably. You brush teeth, you wash face, you pour cereal, you eat cereal, you rinse bowl, you attend online meeting, you get dressed … Such sequences often follow patterns. In some cases, a researcher might want to detect those patterns: to predict what comes next, … Continue reading →

The online book City Rhythm published in 2018 explores rhythm to explain cities and their internal diversity, as well as differences between cities. As I have explored elsewhere, mundane and ordinary events are also everyday events i.e. events that occur every day, repeatedly, and relate to people’s habits, their habitual activities. So a rhythmanalysis can focus … Continue reading →

Text-based blogging, or weblogging, developed in the 1990s as a medium for recording and presenting date-stamped content, accessed through a single web address, presenting the most recent post at the top of the home page. I’ve been doing this for 10 years now. So it’s time to reflect. Video blogs (vlogs) and audio podcasts have … Continue reading →

August 25, 2020 marked the tenth anniversary of this blog site. To mark the occasion I thought I would experiment with visitor statistics and their rhythms. WordPress provides helpful visitor statistics that indicate topics that have most attracted readers — or that people are most likely to stumble across. My most viewed post by far … Continue reading →

For philosopher Henri Lefebvre, rhythms are influenced by their context. They also vary. The waves on the sea provide an obvious example. Perturbations across water involve counter movements, complex overlays of movement, and the patterns rely on the shape and materials of the shore, the tides, weather conditions, and water traffic. He contrasts rhythm with … Continue reading →

I’m interested in the Discrete Cosine Transform (DCT) method as a means of hiding one image inside another. It’s also a key technique in image compression. I’ve implemented the DCT method on an Excel spreadsheet. The image below is an 8×8 grid of pixel values, in grey ranging from 0 = black to 255 = … Continue reading →

Rhythms permeate the city, and these rhythms overlap, combine, aggregate and interfere with one another. That’s the gist of Henri Lefebvre’s book entitled Rhythmanalysis. By my reading the concept fits within the genre of research concerned with everydayness, the quotidian, which implies a concern with ordinary things and everyday phenomena that repeat. (See post: Time … Continue reading →

The visual field is full of smooth curves. Shadows don’t have sharp edges but fade out. Colours blend, sometimes imperceptibly. At some level of detail, most things transition smoothly, but to varying degrees. The variation across such transitions is noticeable in a high quality digital photograph, i.e. a pixel image. Here is a random row … Continue reading →

GIF image files have 8 bit colour for red (R), green (G) and blue (B), i.e. 256 shades each for RGB. Most smartphone cameras currently provide 10 bit colour. So if you convert your photographs to GIF format they will be of lower quality. Apart from that the GIF format provides lossless compression. So GIF … Continue reading →

There’s no real evidence that subliminal messaging works. By most accounts, the experiments of the marketing psychologist James M. Vicary in the 1950s were a hoax. The theory was that we pick up words and images presented to us in ways that defy conscious awareness. Audiences in a cinema could be induced to buy a … Continue reading →

What’s it like to get inside a surface? I’ve been reading Avron Stroll’s seminal philosophy book Surfaces. He exhausts most of the ways people use the word “surface” in everyday speech. E.g. you can be on a surface or under it, but it’s not usual to speak of a surface inside a surface. And some … Continue reading →

The Austrian architect Adolf Loos (1870-1933) wrote Ornament and Crime. It is a celebrated polemic against the superfluity of ornament in the modern industrial age: “not only is ornament produced by criminals but also a crime is committed through the fact that ornament inflicts serious injury on people’s health, on the national budget and hence … Continue reading →

Steganography is hiding one picture (a secret or data) inside another (a host or carrier) image. As with cryptography in general, there are several reasons someone might want to hide content in this way. The hidden image could serve as a digital watermark. That’s to assert your claim on a picture. If someone copies it … Continue reading →

Here’s an anamorphic image of Karl Marx in the aptly named Karl Marx House in Trier, Germany. Face on, the image is a blur. Side on you can see him. That’s one way of concealing an image, revealed only if you know where to stand. Digital images offer other methods as well. Here’s a fragment … Continue reading →

“Raster” is a suitably old fashioned term suggesting the scan lines of a cathode ray television screen. “Pixel” is more up to date. Pixel images have a privileged relationship with architecture. Much architecture is about the grid. Pixel images provide one means of depicting space, i.e. plans and elevations of buildings, zones, regions, city blocks. … Continue reading →

In 1997, the Hubble Space Telescope’s Imaging Spectrograph (STIS) picked up the signature of a black hole. Instead of a vertical straight scan line, the STIS showed an S shape. Signatures point to the presence of something (a referent). But you see the thing only indirectly, i.e. you get to know that the referent exists, … Continue reading →

Encryption is an unfortunate necessity to keep our personal information and communications private. While we ponder whether it’s safe or not to Zoom it’s worth reflecting on encryption’s negatives. Critic Shoshana Zuboff writes “encryption is the only positive action left to discuss when we sit around the dinner table and casually ponder how to hide from … Continue reading →

Generals and soldiers must pass messages up and down the chain of command in secret to avoid interception by the enemy. The same applies to cities. Writing in the 1600s, the English natural philosopher (and proto-semiotician) John Wilkins (1614-1672) affirmed that “there are certain ways to discourse with a friend, though he were in a … Continue reading →

Calamity, cataclysm, catastrophe, crisis, catalysis and cacophony bear no common etymology as far as I can see, though they sound as though they should. A calamity derives from the idea of a corn harvest gone bad. A cataclysm is a deluge. A catastrophe is an overturning. A crisis is a moment of decision. A catalysis … Continue reading →

The camcorder was the quintessential consumer product of the 1980s. I recall the presence of this compact video recorder at a friend’s wedding. People would glance nervously at the camera when it aimed in their direction. Only later when we played the tape did we notice a curious behaviour. People would flick a hand in … Continue reading →

What are the spatial implications of social isolation? Demonstrators arranged themselves on a social-distancing grid at the Athens May Day gathering, conjuring up a scenario of a gridded world, where citizens move about as if on a chessboard or an early version of SimCity. Architects gravitate towards extreme conditions as a way of unleashing new … Continue reading →

Smartphones can’t yet take your temperature and diagnose if you are carrying an infection. But developers are designing smartphone apps to trace if you’ve been in contact with someone who has COVID-19. The most promising contact tracing apps enable smartphones to exchange short encrypted messages when they are within range of one another. That happens … Continue reading →

Why cover your nose and mouth with fabric during an epidemic? Apart from any practical advantages, and disadvantages, a face mask is a sign. Whether or not they are effective in blocking viruses, (non-surgical) face masks transmit messages. Before the current crisis I wrote a book on the founder of semiotics Charles Sanders Peirce (1839-1914). … Continue reading →

The metropolis is about as good as a city can get. As “the mother city”, it combines the best of its predecessor types: the family-based village community (eopolis), and that mutually supporting defensive community known as the polis. The metropolis is that stage in the evolution of the city where labour skills divide. Specialist workers … Continue reading →

As I’m considering this for part of a future publication, I thought I should write the following in the past tense. I wonder if it will stand the test of time. I wrote most of this during the third great confinement, the global shutdown during the pandemic of 2020. Cities had to marshal their resources … Continue reading →

Pandemic and panic look a bit the same. A pandemic is a characteristic shared by everyone, in this case a disease or its threat. Panic pertains to Pan, the god of wild nature. To panic is to go wild. According to etymonline.com pan can be taken to mean “all” in both cases – i.e. all … Continue reading →

This forced quarantine should last forty days, and forty nights. “Forty” is apparently the highest number ever reached in Sesame Street counting lessons. It’s also the number of squares around a Monopoly board. Forty years is a good biblical number, not least as it gives a clear sweep between generations. It was 40 years before … Continue reading →

A book by Kai-Fu Lee called AI-Superpowers outlines what’s needed for the current generation of artificial intelligence (AI) to succeed, and why China has the necessary ingredients to lead in the area. Lee is CEO of Sinovation Ventures, a firm that finances Chinese high-tech startups. Prior to that he was president of Google China, and … Continue reading →

As anyone who plays video games or works with digital media will tell you, a simulation of a city is a model or image of a city. A simulated city (as in SimCity™) is similar in some respects, but not the same as a brick and concrete city. Now consider the related word dissimulation. Something … Continue reading →

I’m interested in cryptography and the city, as a way of thinking about the supposed smart city. The graphic part of cryptographic might make us think of drawing, but it has most to do with writing. Etymonoline.com describes the common abstract noun ending -graphy as a “word-forming element meaning ‘process of writing or recording’ or … Continue reading →

Who wants a car that drives itself? The Tesla car epitomises the ambition for electric-powered self-drive cars. The tesla.com website explains that the hardware (i.e. sensors, controls, etc) is in place. It will soon be safe enough for a driver to recline in her seat and fall asleep while the car does the rest. “All … Continue reading →

Bitcoin is a cryptocurrency, i.e. it is digital money that purportedly carries some of the benefits of cash. You can buy things with it, give it away, invest it, and stash it without involving a bank. But unlike cash, there’s no physical paper or coinage. You could try to design your own banknote, or make … Continue reading →

I heard about onecoin through the BBC Podcast called The Missing Cryptoqueen by journalist Jamie Bartlett and producer Georgia Catt who investigated the scheme and the damage it has wrought to individual lives. As I listened to the first episode of the podcast I thought I was hearing a mockumentary, or a mystery story in … Continue reading →

Google and other digital masters have the capability to capture, store and process the content and meta-data of our communications, movements and interactions. At least, that’s according to Shoshana Zuboff’s argument about life and power in The Age of Surveillance Capitalism. Aided by algorithms that sort, categorise, and make inferences, Google can predict our desires … Continue reading →

In her recent book on surveillance capitalism Shoshana Zuboff explains how digital corporations exploit our data, and us, just they claim that their products meet our needs and help us realise our dreams. “our lives are plundered for behavioral data, and all for the sake of others’ gain. The result is a perverse amalgam of … Continue reading →