The Number That Became a Person

For most of the twentieth century, a telephone number belonged to a place. It rang in a hallway, a kitchen or an office. When you called someone, you were really calling a location and hoping they were near it. If they were out, the call failed, and there was nothing to do but try again later.

Today a phone number belongs to a person. It travels in a pocket, rings wherever its owner is, and increasingly stands for the owner themselves: it is how a bank confirms who you are, how a delivery finds you, how a government service sends you a code. The same small device is, for billions of people, their only computer, their camera, their map, their wallet and their window onto the internet. The GSMA, the industry association of mobile operators, reported in 2025 that 4.7 billion people, 58 percent of the world’s population, use the mobile internet.¹

The mobile phone is so ordinary now that it is easy to miss how strange this is. Computers began as machines the size of rooms. Within one lifetime, the most widely owned computer on Earth came to live on the human body, close enough to be touched hundreds of times a day. Understanding how that happened means following a series of decisions, each of which made the device a little more personal than the one before.

The scarcity problem

Radio telephones existed long before cellular networks. In 1946 the Bell System opened a mobile telephone service for cars, using a powerful central transmitter to cover a whole city. The difficulty was arithmetic. A city had only a few radio channels available, and each conversation occupied one for its whole length. A handful of channels could serve only a small number of subscribers, so service was expensive, waiting lists were long, and callers often waited for a free channel.

The constraint was not the telephone. It was the spectrum, a finite natural resource that could not simply be manufactured.

The cell: mobility through infrastructure

The solution was proposed remarkably early. In a Bell Labs memo dated December 1947, the engineer Douglas H. Ring described a different arrangement, crediting his colleague W. Rae Young with key ideas. Instead of one powerful transmitter covering a city, cover it with a grid of small areas, each served by a low-power base station. Because each station’s signal reached only a short distance, the same frequencies could be reused in cells that were not adjacent. Lay the cells out as hexagons, and a call could be handed off automatically from one cell to the next as a vehicle moved.²

This idea contains the central philosophy of cellular systems: capacity and mobility would come not from the device but from the network. A powerful, intelligent infrastructure would allow the handset to be weak, small and cheap. The more cells a network had, the more people it could serve.

In 1947 none of this could be built. The switching computers needed to track moving callers and hand them off between cells did not exist, and regulators had not allocated the necessary spectrum. The idea waited for two decades, until engineers at Bell Labs, including Richard Frenkiel and Joel Engel, developed it into a practical system design in the late 1960s and 1970s.² The gap between concept and implementation is a reminder that many “inventions” are ideas waiting for their supporting technology to arrive.

A phone for a person, not a car

When cellular systems were planned, the natural assumption at AT&T was that mobile phones would be car phones: the car could carry a heavy radio and power it from its battery. Motorola, a company that made two-way radios for police and businesses, pursued a different vision.

On 3 April 1973, Martin Cooper, who led Motorola’s effort, stood on a street in Manhattan holding a prototype handheld phone and called Joel Engel at Bell Labs, the head of the rival project.³ The phone was large and heavy by later standards, and its battery allowed only a short conversation. But the demonstration made a point that mattered more than the specifications. Cooper argued that a phone should be personal: its number should represent an individual, not a place, a desk or a home.³

That belief cost a great deal to act on. Motorola invested heavily for years before any revenue arrived.³ Commercial cellular service began in Chicago in 1983, and Motorola’s DynaTAC 8000X went on sale that year for several thousand dollars. Early mobile phones were status objects for executives, but the idea they carried, that communication should follow the person, was the seed of everything that came later.

Identity on a card, and an accidental culture

The first cellular networks were analogue, and different countries built incompatible systems. In Europe, governments and operators agreed to build a shared digital standard instead, the Global System for Mobile Communications, or GSM. The first GSM call was made in Finland in 1991.

Two design decisions in GSM are especially revealing.

The first was the SIM card, a small removable chip holding the subscriber’s identity and account. With a SIM, the person’s identity was no longer fixed to the handset. You could move your number from one phone to another by moving a card. It extended Cooper’s logic in a precise technical way: the number belonged to the person, and the phone was merely the equipment they happened to be using. Because GSM was shared across many countries, the same identity could also roam across borders.

The second was the Short Message Service. SMS used spare capacity in the network’s signalling channels to carry short text messages, limited to 160 characters. The first was sent in December 1992. A popular story holds that the 160-character limit came from an engineer, Friedhelm Hillebrand, counting the characters in typical postcards and telex messages and finding that most fit; other accounts emphasise the technical constraints of the signalling channel, and the exact reasoning is not fully settled.⁴

What is settled is that SMS was not expected to be one of the most used features of the mobile phone, and it became exactly that. Teenagers, people in countries where calls were expensive, and anyone who wanted to communicate without interrupting, adopted text messages in enormous numbers. A feature designed around a technical by-product became a new form of writing, with its own abbreviations and etiquette. It is one of the clearest examples in technology of users deciding what a product is for.

The phone begins to compute

Through the 1990s, phones gained computing functions one at a time. IBM and BellSouth’s Simon, sold in 1994, combined a phone with a touchscreen, a calendar and email. BlackBerry devices, starting with a two-way pager in 1999, made “push” email practical: messages arrived on the device without the user asking, and professionals came to depend on the small keyboard and the constant connection. In Japan, NTT Docomo’s i-mode service, also launched in 1999, offered news, banking and other services on phones well before such things were common elsewhere.

In most markets, however, the phone was controlled by the network operator. Operators decided which phones they sold, which features were enabled and which services could run. The handset was largely a terminal at the edge of the operator’s system, consistent with Ring’s original philosophy: intelligence in the network, simplicity in the device.

Taking the buttons away

On 9 January 2007, Steve Jobs introduced the iPhone at the Macworld conference in San Francisco. His presentation is worth reading closely, because it explains the design decision at the heart of the device in his own words.

He described the existing smartphones and identified their problem in their bottom half: “They all have these keyboards that are there, whether you need them or not to be there. And they all have these control buttons that are fixed in plastic and are the same for every application. Well, every application wants a slightly different user interface.” Fixed buttons, he argued, could not change for each application and “can’t change down the road if you think of another great idea.” His answer: “What we’re going to do is get rid of all these buttons and just make a giant screen.” Instead of a stylus, “we’re going to use a pointing device that we’re all born with … We’re gonna use our fingers.”⁵

He introduced the device as three products in one: “An iPod, a phone and an internet communicator … These are not three separate devices. This is one device.”⁵

The decision to replace hardware controls with a software-defined screen made the phone general-purpose in a new sense. A keyboard, a camera shutter, a map, a piano, a game controller: each could be drawn on the glass when needed and disappear when not. The device’s identity was no longer fixed at the factory. It was whatever the software running at that moment made it.

Web apps, then the store

What software, and from whom? Apple’s first answer was cautious. At its developer conference in June 2007, it announced that outside developers could build “Web 2.0 applications” that ran in the browser, which “can extend iPhone’s capabilities without compromising its reliability or security.”⁶ Jobs presented this as an innovative approach that kept the iPhone “secure and reliable.”

Within months the company changed course. It announced that autumn that it would release a software development kit, which arrived in March 2008. On 10 July 2008 Apple announced that “more than 500 native applications” would be available on the App Store when the iPhone 3G went on sale the next day.⁷

The reversal shows the tension that has defined the smartphone ever since. A general-purpose device is far more valuable when anyone can write software for it. But every new program is a potential risk to the device’s reliability, security and battery life, and to its owner’s privacy. Apple’s answer was a curated store: native apps, but only through a single channel that the company reviewed and controlled. It traded some openness for consistency and safety, and created a new kind of marketplace in the process.

The open alternative

Google took a different path. In November 2007 it announced Android, an operating system developed with a consortium of manufacturers and operators, and the first Android phone went on sale in October 2008. Android was licensed to many manufacturers, who could build phones at every price point, and it allowed users more freedom to install software from sources other than the main store.

The two approaches reflect two answers to the same question: who decides what the device can do? Apple’s answer was the company that made it, acting as a guardian of a unified experience. Android’s was a broader ecosystem of manufacturers, developers and users, with more variety and less uniformity. Both answers succeeded. Android’s openness to many manufacturers, in particular, helped put inexpensive smartphones in the hands of people who could never have afforded the devices of earlier eras.

The phone becomes the internet

The arrival of affordable smartphones changed who the internet was for. In many countries, people skipped the desktop computer entirely. Their first computer, and often their only one, was a phone.

The consequences went far beyond browsing. In March 2007, a few months before the iPhone, Kenya’s Safaricom launched M-Pesa, a service that let people send and store money using ordinary mobile phones and text-based menus, turning the phone number into something like a bank account for millions of people without access to banks. In India, the launch of the Jio network in 2016 with very low-priced data accelerated mobile internet use on a national scale. In much of the world, the phone became the principal gateway to payments, government services, education and work.

The GSMA’s 2025 figures show both how far this has gone and where it stops. Beyond the 4.7 billion mobile internet users, 3.1 billion people, 38 percent of the world, live within reach of a mobile broadband network but do not use it, while only about 4 percent have no coverage at all.¹ The obstacles today are mostly affordability, skills and relevance rather than signals. The infrastructure that Ring imagined now covers most of humanity. The device and what it costs are the remaining barriers.

A device that is never off

As the smartphone took on more roles, it gained sensors: cameras on both sides, satellite positioning, accelerometers, microphones always ready to listen for a command. In 2009 Apple introduced push notifications for third-party apps, allowing any app to reach its user at any moment. The result was a device that knew where its owner was, could capture what they saw, and could ask for their attention whenever a piece of software decided it should.

These capabilities created extraordinary value. They also turned attention into the main resource the device’s software competed for. By 2018 both Apple and Google had added built-in tools, Screen Time and Digital Wellbeing, that showed people how much they used their phones and let them set limits. It was a notable acknowledgement: the companies that built the devices were now also building tools to help people use them less.

The effect of smartphones on well-being, especially for young people, has become one of the most contested questions in public life. In his 2024 book The Anxious Generation, the social psychologist Jonathan Haidt argued that the shift to phone-based childhood in the early 2010s contributed substantially to rising anxiety and depression among adolescents. Other researchers, notably the psychologist Candice Odgers in a review in Nature, argued that the evidence for a causal effect is weaker than the book suggests, and that the association may run partly the other way, with struggling young people using phones more.⁸ The scientific debate is unresolved. What both sides accept is that a device this personal, used this often, deserves careful study.

What the phone has become

The smartphone’s basic form, a slab of glass with a touchscreen, has changed little since 2007; most development has gone into cameras, processors, batteries and software. What has changed is its role. A phone today holds payment cards and tickets, unlocks cars and doors, carries identity documents in some countries and confirms logins to almost every other service. The number that Cooper wanted to belong to a person has become, in many systems, part of the proof of who that person is.

That shift reverses Ring’s 1947 philosophy. Early cellular design put the intelligence in the network and kept the handset simple. Today the handset holds powerful processors, private data and increasingly on-device artificial intelligence, and the network is largely a pipe. The device has become the place where a person’s digital life is concentrated.

Understanding the philosophy

The mobile phone raises philosophical questions more directly than almost any other technology, because it is so close to the person. It is held, carried and consulted constantly; it stores memories and proves identity; it decides, through its software, what its owner can do. This section takes the main philosophical ideas embedded in the phone’s design one at a time. Each is explained in plain terms, connected to the tradition that has examined it most carefully, traced in the history above, tested against its strongest objection, and related to everyday life with a phone. The connections to named philosophers are interpretations offered to make the ideas clear; the phone’s designers did not, as far as the record shows, have them in mind.

1. The tool that disappears in use

The idea in plain terms

When you are absorbed in a conversation on the phone, you do not notice the phone. You notice it when the battery dies, the screen cracks or the signal drops. The best tools vanish while they work.

The tradition

In Being and Time (1927), Martin Heidegger described two ways things can show up for us. When we use a hammer skilfully, it is ready-to-hand: we do not attend to it as an object but through it, to the nail and the work. When the hammer breaks or is missing, it becomes present-at-hand: suddenly an object with properties, conspicuous and in the way. Maurice Merleau-Ponty, in Phenomenology of Perception (1945), extended this to the body: a blind person’s cane, with practice, stops being felt in the hand and becomes the point at which they feel the world. It joins what he called the body schema, the pre-reflective sense of what one’s body can do.

Where it shows up

Jobs’s argument for replacing fixed buttons with a screen operated by “a pointing device that we’re all born with” was, in effect, an argument for a more ready-to-hand device: an interface that reshapes itself to each task so that attention can pass through it.⁵ Touch, gestures and haptic feedback all aim at the cane’s condition, where the device becomes part of how one reaches the world rather than an object in it.

The strongest objection

The phone never entirely disappears, because it is designed not to. Notifications, badges and sounds make it deliberately conspicuous, present-at-hand by design, many times an hour. Heidegger’s hammer did not ask to be picked up. The smartphone does.

What it means today

A useful test of one’s relationship with a phone is how often it is ready-to-hand, serving a purpose one chose, and how often it is present-at-hand, demanding attention for its own reasons. Many of the wellbeing tools added since 2018 can be understood as attempts to tip that balance back toward the first.

2. Everything available, nothing demanded

The idea in plain terms

A phone makes almost anything instantly available, music, food, maps, conversation, without requiring effort or skill. That is its gift. It may also be its cost, because some of what made those things valuable was the effort they required.

The tradition

In Technology and the Character of Contemporary Life (1984), the philosopher Albert Borgmann described what he called the device paradigm. Modern devices, he argued, deliver a commodity, warmth, music, food, while hiding the machinery that produces it and relieving us of the effort it once took. Central heating delivers warmth without the labour, skill and gathering that a hearth required. Borgmann contrasted devices with focal things and practices, such as a family meal or playing an instrument, which demand engagement and in return organise and give meaning to life.

Where it shows up

The smartphone is perhaps the purest device in Borgmann’s sense: a sealed slab of glass whose machinery, networks, data centres and supply chains, is entirely invisible, and which makes a vast range of commodities available with a touch. The App Store’s promise was precisely more and more things available, more and more easily.

The strongest objection

Phones also support focal practices. A video call can keep a family together across continents; a reading app can carry a library to a village; a music app can teach an instrument. Borgmann’s contrast describes a tendency, not an iron law.

What it means today

Borgmann’s distinction offers a way to sort one’s use of a phone: which uses deliver commodities that leave nothing behind, and which support practices that a person values and grows through. The device itself does not decide; its owner can.

3. The phone as a store of the self

The idea in plain terms

Lose your phone today and you may lose your photographs, your contacts, your messages, your access to your bank and your ability to prove who you are online. For many people, the phone has become a store of their memories and their identity.

The tradition

John Locke, in the 1694 edition of An Essay Concerning Human Understanding, proposed that personal identity consists in continuity of consciousness, particularly memory: I am the same person as the child I remember being because I can remember that child’s experiences. More recently, the philosopher Luciano Floridi has argued that people increasingly live “onlife,” in an environment where online and offline are inseparable, and that our identities are partly constituted by information about us.⁹

Where it shows up

The SIM card made identity portable between handsets. The smartphone turned the phone number into a key for banking, government services and two-factor authentication. Cameras and cloud backups made the phone the main store of personal memory for billions of people. Cooper’s idea that a number should represent a person has become, in many systems, the idea that the number is how the person is recognised.³

The strongest objection

On Locke’s own account, memory that is stored outside the person is not part of their consciousness; a photo album is not a memory. Losing a phone is a serious inconvenience, not a loss of self. The extended-mind debate, discussed in the note-taking essay, turns on exactly this disagreement.

What it means today

Whether or not the phone is part of the self, it has become the main proof of the self for many institutions. That makes its security, and the ability to recover one’s identity when it is lost, matters of personal autonomy rather than mere convenience.

4. The end of the sense of place

The idea in plain terms

A landline belonged to a place, and calls had a setting: the office, the kitchen. A mobile phone can bring work into a bedroom, a family argument onto a train and an emergency into a classroom. Places no longer contain the conversations that happen in them.

The tradition

In No Sense of Place (1985), the communication scholar Joshua Meyrowitz argued that electronic media weaken the link between physical place and social situation. Before them, who could hear and see whom was largely determined by walls and distance; with them, situations leak across boundaries, changing behaviour and roles. The anthropologist Marc Augé later described “non-places,” airports, motorways, shopping centres, spaces of passage rather than belonging.

Where it shows up

The phone completed Meyrowitz’s argument. Cooper’s ideal of a personal number freed communication from place entirely. Push email turned every location into a potential office. Location services, in turn, re-attached information to place in a new way: the phone knows where you are, even if your conversations no longer belong to it.

The strongest objection

Phones also strengthen places. Maps, local news, neighbourhood groups and ride-hailing tie people to their surroundings in new ways. And freedom from place has been liberating for people who could not otherwise work, study or keep in touch.

What it means today

Many people now deliberately rebuild a sense of place, phone-free dinners, offices without notifications, bedrooms without chargers, because the technology no longer does it for them. The boundary that walls once provided must now be chosen.

5. Code as law: who governs the device

The idea in plain terms

What your phone lets you do is decided less by laws than by the software its maker designed and the rules of its app store. Those design decisions function like a form of governance.

The tradition

In Code and Other Laws of Cyberspace (1999), the legal scholar Lawrence Lessig argued that behaviour is regulated by four forces: law, social norms, markets and architecture. In digital environments, architecture means code, and “code is law”: what software permits or forbids shapes conduct as effectively as any statute, often more so, because it cannot be disobeyed.

Where it shows up

Apple’s initial decision to allow only web apps, its reversal to a curated App Store, and Android’s more open model are, in Lessig’s terms, competing constitutions for personal devices. Sandboxing and permission prompts are architectural protections for users. App review rules decide which software can reach a billion people. Governments have begun to respond with law: the European Union’s Digital Markets Act, adopted in 2022, requires the largest platform operators to allow, among other things, alternative ways to install apps.

The strongest objection

Curated architecture protects users from malware, fraud and privacy abuse in ways that law cannot easily replicate. Many people choose curated platforms precisely because they trust that governance. Code as law can be benevolent.

What it means today

Choosing a phone is, in part, choosing a governing system for one’s digital life. The debates over app stores, sideloading and default settings are debates about who should hold that power and how it should be checked.

6. Wanting not to want: the phone and the will

The idea in plain terms

Many people check their phones more than they want to. They want to check it in the moment, and they also wish they did not want to. That split, between a desire and one’s attitude to that desire, is the heart of the problem.

The tradition

In 1971 the philosopher Harry Frankfurt published “Freedom of the Will and the Concept of a Person,” distinguishing first-order desires (wanting something) from second-order desires (wanting to have, or not have, a particular desire). A person, for Frankfurt, is someone who cares about which of their desires move them to act; freedom of the will consists in being moved by the desires one endorses.¹⁰ The designer B. J. Fogg’s Persuasive Technology (2003) described how software can be built to change behaviour, a capability that can serve users’ second-order desires or work against them.

Where it shows up

Push notifications, infinite feeds and badges engage first-order desires efficiently. Screen Time and Digital Wellbeing, introduced in 2018, are tools for second-order desires: they let people set limits that their momentary wants cannot easily override. The contested research on phones and adolescent wellbeing, summarised in the history above, is partly a debate about how often first-order engagement works against what young people and their parents would endorse.

The strongest objection

Most phone use is not compulsive. People use phones for things they genuinely value, and it is easy to moralise about other people’s screen time. Frankfurt’s framework identifies a problem where it exists but does not show that it is widespread.

What it means today

Frankfurt’s distinction gives a precise question to ask of any app or setting: does it help me act on the desires I endorse, or does it exploit the ones I would rather not have? Design that serves second-order desires respects people as persons in Frankfurt’s sense.

7. A right, not a privilege: phones and human capabilities

The idea in plain terms

For billions of people, a phone is not a convenience but the main way to bank, learn, find work and reach government services. Not having one, or not being able to use one, now excludes people from much of social life.

The tradition

Licklider and Taylor asked in 1968 whether “to be on line” would be “a privilege or a right.”¹¹ The economist and philosopher Amartya Sen, in Development as Freedom (1999), argued that development should be measured not by income alone but by capabilities: the real freedoms people have to do and be what they have reason to value. Technologies matter, on this view, to the extent that they expand what people can actually do.

Where it shows up

M-Pesa turned basic phones into bank accounts for people without banks. Affordable Android phones and low-cost data put the internet within reach of hundreds of millions. The GSMA’s finding that 3.1 billion people live within reach of mobile broadband but do not use it is, in Sen’s terms, a capability gap: the network exists, but affordability, skills and relevance keep the freedom it offers out of reach.¹

The strongest objection

Expanding access is not the same as expanding capability if the services people reach are poor, extractive or unsafe. Connectivity can also become a requirement that excludes those who cannot or will not use it, as when services move online only.

What it means today

The question for the next decade is less how to make phones more powerful than how to make the capabilities they offer available to those still outside, and how to keep essential life possible for those who are not.

Bringing the threads together

The mobile phone condenses several long philosophical debates into one object. It aims to be Heidegger’s ready-to-hand tool while being designed to demand attention. It is Borgmann’s ultimate device, delivering commodities while hiding its machinery. It has become a store and proof of identity in ways Locke never imagined. It dissolves the link between place and situation that Meyrowitz described. Its software governs conduct as Lessig predicted. It engages desires that Frankfurt would distinguish from the will. And it is, in Sen’s sense, one of the most powerful expanders of human capability ever made, for those it reaches. The history of the phone is the history of a technology that moved from a place to a person. Its philosophy is the set of questions that arise when a technology becomes that personal.

When a device becomes part of a person

Return to the question at the start. The computer ended up on the human body because a series of reasonable decisions each made it more personal. Cells let the phone move. A personal number made it belong to someone. A SIM card made identity portable. Software made the device general-purpose. App stores and open platforms filled it with services. Sensors and notifications made it aware and insistent. At no point did anyone decide that the most widely owned computer in history should live in our hands. It happened one decision at a time.

The philosopher Maurice Merleau-Ponty described how a blind person’s cane, with use, stops being an object they hold and becomes part of how they perceive the world. Something similar has happened with the phone. For many people it is no longer a tool they pick up so much as an extension of how they find their way, remember, communicate and prove who they are. That is the logic of the whole journey, and it carries a responsibility. When a number belonged to a place, the design of the telephone was a question about equipment. Now that the device is part of a person, its design choices are choices about persons: about their attention, their privacy and their freedom. The next chapter of the mobile phone will be decided by how seriously its makers take that.

Selected bibliography

• Ring, D. H. “Mobile Telephony: Wide Area Coverage.” Bell Laboratories technical memorandum, 11 December 1947. Described in Engineering and Technology History Wiki, “The Foundations of Mobile and Cellular Telephony.” ethw.org
• Jobs, Steve. Keynote address, Macworld Conference & Expo, San Francisco, 9 January 2007. Transcript at allaboutstevejobs.com
• Apple Inc. “iPhone to Support Third-Party Web 2.0 Applications.” Press release, 11 June 2007. apple.com
• Apple Inc. “iPhone 3G on Sale Tomorrow.” Press release, 10 July 2008. apple.com
• GSMA. The State of Mobile Internet Connectivity 2025. September 2025. gsma.com
• Haidt, Jonathan. The Anxious Generation. Penguin Press, 2024.
• Odgers, Candice L. “The Great Rewiring: Is Social Media Really Behind an Epidemic of Teenage Mental Illness?” Review in Nature, 2024.
• Merleau-Ponty, Maurice. Phenomenology of Perception. 1945; trans. Colin Smith, Routledge, 1962.
• Heidegger, Martin. Being and Time. 1927; trans. John Macquarrie and Edward Robinson, 1962.
• Borgmann, Albert. Technology and the Character of Contemporary Life. University of Chicago Press, 1984.
• Locke, John. An Essay Concerning Human Understanding, Book II, chapter 27. 2nd ed., 1694.
• Floridi, Luciano, ed. The Onlife Manifesto. Springer, 2015.
• Meyrowitz, Joshua. No Sense of Place. Oxford University Press, 1985.
• Augé, Marc. Non-Places. 1992; trans. John Howe, Verso, 1995.
• Lessig, Lawrence. Code and Other Laws of Cyberspace. Basic Books, 1999.
• Frankfurt, Harry G. “Freedom of the Will and the Concept of a Person.” Journal of Philosophy 68, no. 1 (1971).
• Fogg, B. J. Persuasive Technology. Morgan Kaufmann, 2003.
• Sen, Amartya. Development as Freedom. Oxford University Press, 1999.
• Licklider, J. C. R., and Robert W. Taylor. “The Computer as a Communication Device.” Science and Technology, April 1968.

Research limitations

Ring’s 1947 memorandum was not consulted directly; its content is described from engineering histories, and accounts differ on whether Ring or Young first proposed the hexagonal layout. Cooper’s statements about personal numbers are paraphrased from interviews rather than quoted, because the exact wording varies across sources. The origin of the 160-character SMS limit is contested, and the essay presents it as such. Figures on Motorola’s investment and device prices come from secondary accounts. The well-being debate is summarised from published positions and secondary coverage, and the essay takes no position on the unresolved scientific question. The use of Merleau-Ponty’s cane example is the author’s interpretive frame, not a claim made by any of the designers discussed. The philosophical section relates the mobile phone to Heidegger, Merleau-Ponty, Borgmann, Locke, Floridi, Meyrowitz, Augé, Lessig, Frankfurt, Fogg and Sen; these are the author’s interpretive connections, offered to make the ideas understandable, and do not describe the intentions of the phone’s designers.

Footnotes

1. GSMA, The State of Mobile Internet Connectivity 2025 (September 2025), and accompanying press release, “GSMA calls for renewed focus on closing the Usage Gap as more than 3 billion people remain offline despite available mobile internet services,” gsma.com. ↩ ↩² ↩³

2. Engineering and Technology History Wiki, “The Foundations of Mobile and Cellular Telephony,” ethw.org; and Wikipedia: W. Rae Young. ↩ ↩²

3. Guinness World Records, “1973: First Mobile Phone Call,” guinnessworldrecords.com; and Wikipedia: Martin Cooper (inventor), which summarises his view of the phone as a personal device and Motorola’s investment before revenue. ↩ ↩² ↩³ ↩⁴

4. For the popular account and its uncertainties, see SMSGlobal, “Why is an SMS just 160 characters?” smsglobal.com. ↩

5. Steve Jobs, Macworld 2007 keynote, 9 January 2007, transcript at approximately 00:29–00:33, allaboutstevejobs.com. ↩ ↩² ↩³

6. Apple Inc., “iPhone to Support Third-Party Web 2.0 Applications,” press release, 11 June 2007. ↩

7. Apple Inc., “iPhone 3G on Sale Tomorrow,” press release, 10 July 2008. ↩

8. Jonathan Haidt, The Anxious Generation (2024); Candice L. Odgers, review in Nature (2024); for an overview of the debate, see Columbia Journalism Review, cjr.org. ↩

9. Luciano Floridi, ed., The Onlife Manifesto: Being Human in a Hyperconnected Era (Springer, 2015). ↩

10. Harry G. Frankfurt, “Freedom of the Will and the Concept of a Person,” Journal of Philosophy 68, no. 1 (1971): 5–20. ↩

11. J. C. R. Licklider and Robert W. Taylor, “The Computer as a Communication Device,” Science and Technology (April 1968), p. 40. ↩