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We need smarter cities, not “smart cities”

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We need smarter cities, not “smart cities”


The term “smart cities” originated as a marketing strategy for large IT vendors. It has now become synonymous with urban uses of technology, particularly advanced and emerging technologies. But cities are more than 5G, big data, driverless vehicles, and AI. They are crucial drivers of opportunity, prosperity, and progress. They support those displaced by war and crisis and generate 80% of global GDP. More than 68% of the world’s population will live in cities by 2050—2.5 billion more people than do now. And with over 90% of urban areas located on coasts, cities are on the front lines of climate change.

A focus on building “smart cities” risks turning cities into technology projects. We talk about “users” rather than people. Monthly and “daily active” numbers instead of residents. Stakeholders and subscribers instead of citizens. This also risks a transactional—and limiting—approach to city improvement, focusing on immediate returns on investment or achievements that can be distilled into KPIs. 

Truly smart cities recognize the ambiguity of lives and livelihoods, and they are driven by outcomes beyond the implementation of “solutions.” They are defined by their residents’ talents, relationships, and sense of ownership—not by the technology that is deployed there. 

This more expansive concept of what a smart city is encompasses a wide range of urban innovations. Singapore, which is exploring high-tech approaches such as drone deliveries and virtual-reality modeling, is one type of smart city. Curitiba, Brazil—a pioneer of the bus rapid transit system—is another. Harare, the capital of Zimbabwe, with its passively cooled shopping center designed in 1996, is a smart city, as are the “sponge cities” across China that use nature-based solutions to manage rainfall and floodwater.

Where technology can play a role, it must be applied thoughtfully and holistically—taking into account the needs, realities, and aspirations of city residents. Guatemala City, in collaboration with our country office team at the UN Development Programme, is using this approach to improve how city infrastructure—including parks and lighting—is managed. The city is standardizing materials and designs to reduce costs and labor,  and streamlining approval and allocation processes to increase the speed and quality of repairs and maintenance. Everything is driven by the needs of its citizens. Elsewhere in Latin America, cities are going beyond quantitative variables to take into account well-being and other nuanced outcomes. 

In her 1961 book The Death and Life of Great American Cities, Jane Jacobs, the pioneering American urbanist, discussed the importance of sidewalks. In the context of the city, they are conduits for adventure, social interaction, and unexpected encounters—what Jacobs termed the “sidewalk ballet.” Just as literal sidewalks are crucial to the urban experience, so is the larger idea of connection between elements.

Truly smart cities recognize the ambiguity of lives and livelihoods, and they are driven by outcomes beyond the implementation of “solutions.”

However, too often we see “smart cities” focus on discrete deployments of technology rather than this connective tissue. We end up with cities defined by “use cases” or “platforms.” Practically speaking, the vision of a tech-centric city is conceptually, financially, and logistically out of reach for many places. This can lead officials and innovators to dismiss the city’s real and substantial potential to reduce poverty while enhancing inclusion and sustainability.

In our work at the UN Development Programme, we focus on the interplay between different components of a truly smart city—the community, the local government, and the private sector. We also explore the different assets made available by this broader definition: high-tech innovations, yes, but also low-cost, low-tech innovations and nature-based solutions. Big data, but also the qualitative, richer detail behind the data points. The connections and “sidewalks”—not just the use cases or pilot programs. We see our work as an attempt to start redefining smart cities and increasing the size, scope, and usefulness of our urban development tool kit.

We continue to explore how digital technology might enhance cities—for example, we are collaborating with major e-commerce platforms across Africa that are transforming urban service delivery. But we are also shaping this broader tool kit to tackle the urban impacts of climate change, biodiversity loss, and pollution. 

The UrbanShift initiative, led by the UN Environment Programme in partnership with UNDP and many others, is working with cities to promote nature-based solutions, low-carbon public transport, low-emission zones, integrated waste management, and more. This approach focuses not just on implementation, but also on policies and guiderails. The UNDP Smart Urban Innovations Handbook aims to help policymakers and urban innovators explore how they might embed “smartness” in any city.

Our work at the United Nations is driven by the Sustainable Development Goals: 17 essential, ambitious, and urgent global targets that aim to shape a better world by 2030. Truly smart cities would play a role in meeting all 17 SDGs, from tackling poverty and inequality to protecting and improving biodiversity. 

Coordinating and implementing the complex efforts required to reach these goals is far more difficult than deploying the latest app or installing another piece of smart street furniture. But we must move beyond the sales pitches and explore how our cities can be true platforms—not just technological ones—for inclusive and sustainable development. The well-being of the billions who call the world’s cities home depends on it.

Riad Meddeb is interim director of the UNDP Global Centre for Technology, Innovation, and Sustainable Development. Calum Handforth is an advisor for digitalization, digital health, and smart cities at the UNDP Global Centre.

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IBM wants to build a 100,000-qubit quantum computer

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The Download: IBM’s quantum ambitions, and tasting lab-grown burgers


Quantum computing holds and processes information in a way that exploits the unique properties of fundamental particles: electrons, atoms, and small molecules can exist in multiple energy states at once, a phenomenon known as superposition, and the states of particles can become linked, or entangled, with one another. This means that information can be encoded and manipulated in novel ways, opening the door to a swath of classically impossible computing tasks.

As yet, quantum computers have not achieved anything useful that standard supercomputers cannot do. That is largely because they haven’t had enough qubits and because the systems are easily disrupted by tiny perturbations in their environment that physicists call noise. 

Researchers have been exploring ways to make do with noisy systems, but many expect that quantum systems will have to scale up significantly to be truly useful, so that they can devote a large fraction of their qubits to correcting the errors induced by noise. 

IBM is not the first to aim big. Google has said it is targeting a million qubits by the end of the decade, though error correction means only 10,000 will be available for computations. Maryland-based IonQ is aiming to have 1,024 “logical qubits,” each of which will be formed from an error-correcting circuit of 13 physical qubits, performing computations by 2028. Palo Alto–based PsiQuantum, like Google, is also aiming to build a million-qubit quantum computer, but it has not revealed its time scale or its error-correction requirements. 

Because of those requirements, citing the number of physical qubits is something of a red herring—the particulars of how they are built, which affect factors such as their resilience to noise and their ease of operation, are crucially important. The companies involved usually offer additional measures of performance, such as “quantum volume” and the number of “algorithmic qubits.” In the next decade advances in error correction, qubit performance, and software-led error “mitigation,” as well as the major distinctions between different types of qubits, will make this race especially tricky to follow.

Refining the hardware

IBM’s qubits are currently made from rings of superconducting metal, which follow the same rules as atoms when operated at millikelvin temperatures, just a tiny fraction of a degree above absolute zero. In theory, these qubits can be operated in a large ensemble. But according to IBM’s own road map, quantum computers of the sort it’s building can only scale up to 5,000 qubits with current technology. Most experts say that’s not big enough to yield much in the way of useful computation. To create powerful quantum computers, engineers will have to go bigger. And that will require new technology.

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How it feels to have a life-changing brain implant removed

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How it feels to have a life-changing brain implant removed


Burkhart’s device was implanted in his brain around nine years ago, a few years after he was left unable to move his limbs following a diving accident. He volunteered to trial the device, which enabled him to move his hand and fingers. But it had to be removed seven and a half years later.

His particular implant was a small set of 100 electrodes, carefully inserted into a part of the brain that helps control movement. It worked by recording brain activity and sending these recordings to a computer, where they were processed using an algorithm. This was connected to a sleeve of electrodes worn on the arm. The idea was to translate thoughts of movement into electrical signals that would trigger movement.

Burkhart was the first to receive the implant, in 2014; he was 24 years old. Once he had recovered from the surgery, he began a training program to learn how to use it. Three times a week for around a year and a half, he visited a lab where the implant could be connected to a computer via a cable leading out of his head.

“It worked really well,” says Burkhart. “We started off just being able to open and close my hand, but after some time we were able to do individual finger movements.” He was eventually able to combine movements and control his grip strength. He was even able to play Guitar Hero.

“There was a lot that I was able to do, which was exciting,” he says. “But it was also still limited.” Not only was he only able to use the device in the lab, but he could only perform lab-based tasks. “Any of the activities we would do would be simplified,” he says. 

For example, he could pour a bottle out, but it was only a bottle of beads, because the researchers didn’t want liquids around the electrical equipment. “It was kind of a bummer it wasn’t changing everything in my life, because I had seen how beneficial it could be,” he says.

At any rate, the device worked so well that the team extended the trial. Burkhart was initially meant to have the implant in place for 12 to 18 months, he says. “But everything was really successful … so we were able to continue on for quite a while after that.” The trial was extended on an annual basis, and Burkhart continued to visit the lab twice a week.

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The Download: brain implant removal, and Nvidia’s AI payoff

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A brain implant changed her life. Then it was removed against her will.


Leggett told researchers that she “became one” with her device. It helped her to control the unpredictable, violent seizures she routinely experienced, and allowed her to take charge of her own life. So she was devastated when, two years later, she was told she had to remove the implant because the company that made it had gone bust.

The removal of this implant, and others like it, might represent a breach of human rights, ethicists say in a paper published earlier this month. And the issue will only become more pressing as the brain implant market grows in the coming years and more people receive devices like Leggett’s. Read the full story.

—Jessica Hamzelou

You can read more about what happens to patients when their life-changing brain implants are removed against their wishes in the latest issue of The Checkup, Jessica’s weekly newsletter giving you the inside track on all things biotech. Sign up to receive it in your inbox every Thursday.

If you’d like to read more about brain implants, why not check out:

+ Brain waves can tell us how much pain someone is in. The research could open doors for personalized brain therapies to target and treat the worst kinds of chronic pain. Read the full story.

+ An ALS patient set a record for communicating via a brain implant. Brain interfaces could let paralyzed people speak at almost normal speeds. Read the full story.

+ Here’s how personalized brain stimulation could treat depression. Implants that track and optimize our brain activity are on the way. Read the full story.

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