Technologies

What a Fusion Energy Breakthrough Means for Green Power

Four times now, researchers have produced a fleeting burst of fusion energy, an encouraging sign for making this zero-carbon energy source a reality.

Scientists at Lawrence Livermore National Laboratory who achieved a major fusion milestone a year ago have repeated it three times more. Each experiment used 192 lasers to ignite a fusion reaction that for a fleeting moment produced more energy than was used to trigger it.

Fusion powers the sun, and humans reproduced the process more than 70 years ago to power thermonuclear weapons. The scientific and engineering challenges of a controlled fusion reaction, though, are formidable. The repeated successes by the scientists at LLNL’s National Ignition Facility, gradually increasing the laser power that causes a tiny fusion fuel pellet to implode, are important steps of progress toward sustained, controlled fusion.

«Higher laser energy can help achieve a more stable implosion, resulting in higher yields,» said Jean-Michel Di Nicola, a NIF leader, in a statement after the fourth fusion success on Oct. 30.

But what do the experiments mean for science and for the dream of a new energy source that would power our homes and cars without releasing any carbon dioxide?

In short, it’s fine to applaud the NIF achievements, but they don’t mean a green energy revolution is imminent. It’ll still be years before fusion power progress bears fruit — likely a decade or so — and it’s still not clear if fusion will ever be cheap enough to radically transform our power grid. Continuing today’s investments in solar and wind is critical to combating climate change.

Commercial fusion ventures applauded the NIF experiment and have made gradual progress since then. Commonwealth Fusion Systems opened a new headquarters in Devens, Massachusetts, where it’s building an experimental reactor designed to produce power. Tokamak Energy and General Fusion announced new facilities to be built near Oxford in the UK. Microsoft has agreed to buy fusion power from a Helion Energy plant called Constellation scheduled to go online in 2028. Other startups like Zap Energy and TAE Technologies are touting progress, too.

Here’s a look at what’s happened and what’s still to come.

What is fusion?

An illustration of laser light producing X-rays to initiate a fusion reaction at the National Ignition Facility

Fusion occurs when two lighter elements like hydrogen or helium merge into a single, heavier element. This nuclear reaction releases a lot of energy, as exhibited by the biggest fusion furnace around, the sun.

It’s harder to get fusion to occur on Earth, though, because atomic nuclei are positively charged and therefore repel each other. The sun’s enormous mass produces tremendous pressure that overcomes that repulsion, but on Earth, other forces are required.

Two general approaches to squeeze atoms together and produce fusion are called inertial and magnetic confinement. Inertial confinement usually uses lasers to zap a pellet with a lot of power, triggering an explosion that compresses the fusion fuel. That’s the method NIF uses.

The other approach uses magnetic fields. It’s more widespread among companies trying to commercialize fusion energy.

What did the experiment at NIF accomplish?

In December 2022, a NIF experiment crossed a critical threshold for fusion where the energy that the fusion reaction generated — 3.15 million joules — exceeded the 2.05 megajoules from the lasers to trigger the reaction. Because much more energy is required to run the lasers, though, the reaction overall is highly inefficient.

Fusion researchers denote the ratio of output energy to input energy with the letter Q, and the December 2022 reaction was the first time a fusion reaction surpassed Q = 1. On July 20, Oct. 8 and Oct. 30 of this year, NIF repeated its success in which Q was greater than 1. The Oct. 30 experiment used a record amount of laser power, 2.2 megajoules, an improvement that’s difficult since the lasers can destroy the optical equipment that guide their light.

«It’s all about the control of the damage,» said NIF operations leader Bruno Van Wonterghem in a statement. «Too much energy without proper protection, and your optics blow to pieces.»

Fusion reactors will have to reach a threshold of Q = 10 before energy generation is practical. That’s what everybody is aiming for, including another massive government-funded project called ITER in France. And fusion reactors will have to reach Q = 10 much more frequently than NIF can.

In some ways, these are academic milestones, which fusion experiments have nudged toward for decades. But given fusion’s reputation for not ever getting there, it’s an important proof of what’s possible. Think a little bit more carefully before you repeat that oft-quoted snarky remark that fusion is the energy source of the future and always will be.

What does the NIF experiment mean for green power?

Not a huge amount, for a few reasons. For one thing, most commercial fusion energy projects are using various forms of magnetic confinement, not NIF’s laser-based approach, so the engineering challenges are different. For another, NIF is a gargantuan, $3.5 billion national lab project funded to research nuclear weapons, not a project designed to produce reliable energy for the grid at the most competitive cost.

«Don’t expect future fusion plants to look anything like NIF,» said Princeton researcher Wilson Ricks in a post on X, formerly Twitter. Huge inefficiencies in NIF’s lasers and in the conversion of fusion heat to electrical power mean its design is inherently impractical. In comparison, «magnetic confinement fusion holds some real promise,» Ricks tweeted.

Lowering fusion’s cost is critical to its success since it’ll have to compete against zero-carbon alternatives like today’s fission-based nuclear reactors that can generate a steady supply of power and renewables like wind and solar that are cheaper but intermittent.

«Fusion’s first competitor is fission,» researchers at the Princeton Plasma Physics Laboratory concluded in an October research paper, not yet peer reviewed, that assesses fusion’s prospects on the electrical grid. They expect that if fusion’s high costs can come down enough, it could replace the need for future fission plants, and if lowered further, could also compete against the combination of solar and energy storage.

NIF is a big, complicated site. If fusion power plants can be built in cheaper, smaller units that are more like something coming off a factory line, production costs should decrease. That’s thanks to a phenomenon called Wright’s Law, the experience curve or the learning curve, which has steadily lowered costs for solar and wind. The bigger and more customized a fusion plant is, the less costs will drop and the less competitive fusion will be.

Are there some less direct benefits from NIF’s results?

Yes. Scientists could benefit somewhat from the NIF experiment by updating fusion physics models to account for the fact that it’s supplying its own heat instead of relying on external sources, said Andrew Holland, chief executive of the Fusion Industry Association, an advocacy group for the industry.

And the attention could help, too, especially given longrunning skepticism about fusion energy.

TAE Technologies CEO Michl Binderbauer called NIF’s result «a huge stepping stone into the dawn of the fusion age,» and said it’s an important illustration that fusion energy really is plausible.

Investors have noticed, too. Downloads of the Fusion Industry Association’s annual report, which details the $4.8 billion in venture capital investments in fusion energy startups, increased tenfold after the first NIF achievement was announced, Holland said. Many of those requesting it are from investment firms, he added.

How does fusion work at NIF?

NIF triggers fusion using 192 powerful infrared lasers with a combined energy level of 4 megajoules — about the same as a two-ton truck traveling at 100 mph. That’s converted first into 2 megajoules of ultraviolet light, then into X-rays that strike a peppercorn-sized pellet of fusion fuel.

The intense X-rays cause the outer layer of the pellet to blow off explosively, compressing the pellet interior and triggering fusion. The heat from that fusion sustains the reaction until it runs out of fuel or becomes lopsided and falters.

An aerial photo of the National Ignition Facility shows that it's the size of three football fields

Nuclei? Hydrogen? Catch me up on atomic physics, please

Sure! Here’s a quick refresher.

Everything on Earth is made of tiny atoms, each consisting of a central nucleus and a cloud of negatively charged electrons. The nucleus is made of neutrons and positively charged protons. The more protons in the nucleus, the heavier the element is.

Hydrogen usually has one proton and one electron. An unusual variety called deuterium has a neutron, too, and using nuclear reactors or fusion reactors, you can make a third variety called tritium with two neutrons.

Chemical reactions, like iron rusting or wood burning, occur when those positive and electrical charges cause atoms to interact. In comparison, nuclear reactions occur when the nuclei of atoms split apart or join together. Here on Earth, it’s harder to marshal the required forces to get nuclear reactions to take place, which is why it’s easier to make a steam engine than a nuclear bomb.

When you heat atoms up enough, they get so energetic that the electrons are stripped loose. The resulting cloud of negatively charged electrons and positively charged nuclei is called a plasma, a more exotic state of matter than the solids, liquids and gases that we’re used to at room temperature here on Earth.

The sun is made of plasma, and fusion reactors need it, too, to get those hydrogen nuclei to bounce around energetically enough. A convenient property of plasmas is that their electrically charged particles can be manipulated with magnetic fields. That’s crucial to many fusion reactor designs.

What do you use for fusion fuel?

NIF and most other fusion projects use the two heavy versions of hydrogen, deuterium and tritium, called DT fuel. But there are other options, including hydrogen-boron and deuterium-helium-3, a form of helium with only one neutron instead of the more common two.

To get deuterium and tritium to fuse, you need to heat a plasma up to a whopping temperature of about 100 million degrees Celsius (180 million degrees Fahrenheit). Other reactions are even higher, for example about a billion degrees for hydrogen-boron fusion.

Deuterium can be filtered out of ordinary water, but tritium, which decays away radioactively over a few years, is harder to come by. It can be manufactured in nuclear reactors and, in principle, in future fusion reactors, too. Managing tritium is complex, though, because it’s used to boost nuclear weapon explosions and thus is carefully controlled.

How do you turn that fusion reaction into power?

The deuterium-tritium fusion reaction produces fast-moving solo neutrons. Their kinetic energy can be captured in a «blanket» of liquid that surrounds the fusion reactor chamber and heats up as the neutrons collide.

That heat is then transferred to water that boils and powers conventional steam turbines. That technology is well understood, but nobody has yet connected it to a fusion reactor. Indeed the first generation of fusion power reactors being built today are designed to exceed Q=1, but not to capture power. That’ll wait for the pilot plants that are expected to arrive in the next wave of development.

Is fusion work funded by the government or the private sector?

Both. NIF is funded by the US government’s nuclear weapons program. Government funding also pays for the Joint European Torus in the UK and ITER in France, both of which are more closely aligned with the goal of fusion energy generation.

But increasingly fusion energy is privately funded. Investors have poured $4.8 billion total into fusion energy startups, of which $2.8 billion arrived in the last year, according to the Fusion Industry Association’s annual report published earlier in 2022. Most of that went to Commonwealth Fusion Systems, a startup that spun out of MIT and raised more than $1.8 billion in a funding round in 2021.

The government is now helping the private sector, too. The US Energy Department in September 2022 announced a Milestone Program that provides up to $50 million to build fusion energy pilot plants. The Biden administration, a fusion proponent, said in November 2022 that fusion energy is one of five key approaches to halve carbon emissions by 2030 and reach net zero emissions by 2050.

«Uncle Sam is getting serious,» said Holland of the Fusion Industry Association. NIF’s achievement is «a pass-the-torch moment, where it goes from science and national labs to the commercial sector.»

How is fusion different from fission?

Fission, which powers today’s nuclear reactors, is the opposite of fusion. In fission, heavy elements like uranium split apart into lighter elements, releasing energy in the process.

Humans have been able to achieve fusion for decades with thermonuclear weapons. These designs slam material like uranium or plutonium together to trigger a fission explosion, and that provides the tremendous energy needed to initiate the secondary and more powerful fusion reaction.

In bombs, the process occurs in a fraction of a second, but for energy production, fusion must be controlled and sustained.

Do fusion reactors create radioactive waste?

Yes, generally, but it’s not nearly as troublesome as with fission reactors. For one thing, most of the radioactive emissions are short-lived alpha particles — helium nuclei with a pair of protons and a pair of neutrons — that are easily blocked. The fast-moving neutrons can collide with other materials and create other radioactive materials.

Fusion reactors’ neutron output generally will degrade components, requiring periodic replacement that could require downtime lasting perhaps a few months every few years. It’s vastly easier to handle than the high-level nuclear waste of fission power plants, though.

Hydrogen-boron fusion is harder to achieve than deuterium-tritium fusion, but part of its appeal is that it doesn’t produce any neutrons and attendant radioactive materials. The most prominent company pursuing this approach is TAE Technologies.

What are the safety risks of fusion power?

Fusion power plants don’t have the meltdown risks that have caused problems with fission reactors like the Fukushima and Chernobyl sites. When a fusion reaction goes awry, it just fizzles out.

But there still are significant operational issues that you’ll see at major industrial sites, including a lot of electrical power and high-pressure steam. In other words, the big problems are more like those you’d find at an industrial site than at one of today’s fission nuclear power plants.

So there are real advantages to fusion. NIF’s work helps show that there’s a future for fusion energy. But there’s still a very long way to go.

Technologies

The Ultimate AI Wearable Is a Piece of Tech You Already Own

Commentary: Tech companies are trying to give us dedicated AI devices. There’s no need — we all have them already.

In some quarters, the rise of AI has sparked the urge to invent all-new devices, which are deeply invested in that technology but which look and function differently from any products we’ve owned before.

These range from head-mounted XR devices, such as headsets and glasses, to pins, necklaces, phone accessories and whatever mystery product former Apple designer Jony Ive and OpenAI are developing in secret.

But what if, in pursuit of these new devices, we overlook the fact that the ultimate AI form factor is something we all already own? It could even be that the best way to deploy AI is through tech that dates back to the 19th century.

I’m talking about headphones.

There hasn’t been a lack of evolution in personal audio over the years, but integrating AI into headphones is giving them a new lease on life, says Dino Bekis, vice president of wearables at chipmaker Qualcomm. We’re starting to see this with devices like Apple’s new AirPods Pro 3.

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The impact of AI on headphones will be twofold, says Bekis. First, it will build on improvements we’ve already seen, such as the ability to easily switch among active noise cancellation, transparency and other listening modes.

Instead of that being something we need to control manually, the headphones themselves will increasingly handle it all dynamically. Sensors on board, layered with AI, become more adept at reading and understanding our immediate surroundings.

Bekis says that maybe your headphones could alert you to someone trying to get your attention by recognizing your name being called, even if you’re listening to music with ANC enabled. If you’re on a call, walking along a busy street, they could alert you to traffic dangers, sirens or someone who might be walking close behind you.

But where he really sees AI headphones coming into their own is in the interactions you’ll have with AI agents. These personal assistant-like versions of artificial intelligence will operate autonomously with our devices and services on our behalf.

There’s no more «natural way» than conversation to interact with them, he says, and the high-quality mics and speakers in your headphones will allow for clear and effective communication.

«Earbuds or headphones are really yesterday’s technology that’s suddenly been reinvented and is becoming the primary way we’re going to be interfacing with agents moving forward,» says Bekis.

Headphone-makers, meet AI

Not all headphones are on the verge of transforming into wearable AI assistants, and the situation is not the same across the board. Many legacy headphone companies are «entrenched in their core focus of audio quality and audio file capability,» says Bekis.

At the same time, Bekis says Harman-owned high-end audio brand Mark Levinson is one headphone maker Qualcomm is working with on integrating AI into its products. And smartphone manufacturers who also have audio products in their lineup are at the forefront of the charge.

You only need to look at the new capabilities that Samsung, Google and Apple have bolstered their headphones with over the past few years. In addition to adaptive audio, the companies are starting to add AI-specific features. Google’s Pixel Buds 2 are engineered not just as an audio device but as hardware with the company’s Gemini AI assistant at the core (you could say «Hey, Google» to activate Gemini and ask it to summarize your emails, for example).

In September, Apple introduced AI-powered live translation with the AirPods Pro 3. The AirPods will parse what someone is saying to you and play it in your chosen language in your ear. They will also pick up your speech and translate it so that you can show the other person a transcript in their language on your phone screen.

Apple also seems to be searching for ways to further tap the AI potential of its headphones range. A report from Bloomberg earlier this month suggested that the company might introduce AI-powered infrared cameras with the next version of the AirPods Pro, which could be activated by and respond to gestures.

It’s clear that smartphone-makers can see the potential in headphones to be more than just audio products, in the same way they once recognized that the phone could be more than simply a device for making calls. They might even turn headphones and earbuds into what I think could be the ultimate AI wearable.

Why headphones?

The biggest argument for headphones over other emerging AI-focused wearable tech is their popularity: Who doesn’t own at least one pair? (My feeling is that everyone should own at least three different styles, each with its own strengths.) It’s just not the same with glasses or watches.

Yes, they are common and familiar, but the likelihood is that if you don’t already wear them regularly, the addition of AI is unlikely to persuade you. Glasses, in particular, have drawbacks, including battery life. There’s also the difficulty of combining the tech with prescription lenses and privacy concerns due to the addition of cameras.

After well over a decade of effort, tech companies are also still struggling to make smart glasses as sleek and comfortable to wear as their non-smart counterparts (the Meta Ray-Bans perhaps being the one exception to the rule here).

Smartwatches and fitness bands, meanwhile, have become more comfortable, but many people still find them cumbersome for sleeping. The sensors in them are too far away from our faces, where we receive the majority of our sensory inputs, to comprehend the world around us with forensic detail. They cannot relay sensory feedback to us without us having to look at a screen. The same is true for rings and other smart jewelry.

There are no devices that rival headphones, and earbuds in particular, for sheer proximity to a major sensory organ capable of both inputting and outputting complex sensory data. They have been and remain discreet, easy to take on and off, and not overly power hungry or demanding when it comes to charging frequency.

«Critically, there’s the social acceptance level of this as well, where, ultimately, headphones have become incredibly commonplace,» says CCS Insight Analyst Leo Gebbie.

They don’t insert a noticeable barrier between you and the world you’re experiencing. Plus, even when they’re obvious, they don’t tend to put people on edge over concerns you could be capturing their image, and you don’t need to learn how to use them, Gebbie says.

«Contrast that with something like smart glasses, where I think there is a whole new set of user behaviors that would need to be learned in terms of exactly how to interact with that device,» he says. «Also, there’s kind of a social contract, which, for me, at least with smart glasses, has always been one of the biggest stumbling blocks.»

What’s more, headphones have been getting gradually smarter all this time without most of us even noticing.

This invisible evolution is the closest tangible expression I’ve seen of the widespread belief among tech leaders that AI should be a subtle, ambient force that permeates our lives as inconspicuously as possible.

Headphones are an established product that shows consistent growth, making them the safest bet for companies that want as many people as possible to engage with AI through wearable tech.

Multiple forecasts, including from SNS Insider and Mordor Intelligence, estimate the global market for headphones will grow to over $100 billion by the early 2030s. By contrast, Mordor forecasts the smart glasses market will grow to $18.4 billion in the same period, one of the higher estimates I found.

Companies are always searching out new revenue streams, hence their determination to explore new kinds of AI devices, says Gebbie. But, he adds, «headphones definitely feel like a safer bet, because it’s a form factor that people are familiar with.»

It may well be the case that no single wearable device will define our coexistence with AI, and if there is, it will be a device of our choosing.

But rather than reinvent the wheel, I strongly suspect the companies embracing the potential of headphones will see these formerly audio-focused devices fly in the age of AI. And perhaps it’s just personal preference, but I’m on board.

Technologies

Phone Plugged in 24/7? Experts Reveal the Science Behind Battery Damage

Phone batteries degrade over time, but heat and use habits are a larger danger than keeping your phone plugged in.

There was a time when smartphone users were warned not to leave their phones plugged in for too long, or it could do damage to the battery. While modern smartphones now have overcharge protection that keeps them safe, many people still have questions about whether keeping their phone perpetually plugged in will damage the battery.

The short answer is no. Keeping your phone plugged in all the time won’t ruin your battery. Modern smartphones are built with smart charging systems that cut off or taper power once they’re full, preventing the kind of «overcharging damage» that was common in older devices. So if you’re leaving your iPhone or Android on the charger overnight, you can relax.

That said, «won’t ruin your battery» doesn’t mean it has no effect. Batteries naturally degrade with age and use, and how you charge plays a role in how fast that happens. Keeping a phone perpetually at 100% can add extra stress on the battery, especially when paired with heat, which is the real enemy of longevity.

Understanding when this matters (and when it doesn’t) can help you make small changes to extend your phone’s lifespan.

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The science behind battery wear

Battery health isn’t just about how many times you charge your phone. It’s about how it manages voltage, temperature and maintenance. Lithium-ion batteries age fastest when they’re exposed to extreme levels: 0% and 100%.

Keeping them near full charge for long stretches puts additional voltage stress on the cathode and electrolyte. That’s why many devices use «trickle charging» or temporarily pause at 100%, topping up only when needed.

Still, the biggest threat isn’t overcharging — it’s heat. When your phone is plugged in and running demanding apps, it produces heat that accelerates chemical wear inside the battery. If you’re gaming, streaming or charging on a hot day, that extra warmth does far more harm than leaving the cable plugged in overnight.

Apple’s take

Apple’s battery guide describes lithium-ion batteries as «consumable components» that naturally lose capacity over time. To slow that decline, iPhones use Optimized Battery Charging, which learns your daily routine and pauses charging at about 80% until just before you typically unplug, reducing time spent at high voltage.

Apple also advises keeping devices between 0 to 35 degrees Celsius (32 to 95 degrees Fahrenheit) and removing certain cases while charging to improve heat dissipation. You can read more on Apple’s official battery support page.

What Samsung (and other Android makers) do

Samsung offers a similar feature called Battery Protect, found in One UI’s battery and device care settings. When enabled, it caps charging at 85%, which helps reduce stress during long charging sessions.

Other Android makers like Google, OnePlus and Xiaomi include comparable options — often called Adaptive Charging, Optimized Charging or Battery Care — that dynamically slow power delivery or limit charge based on your habits. These systems make it safe to leave your phone plugged in for extended periods without fear of overcharging.

When constant charging can hurt

Even with these safeguards, some conditions can accelerate battery wear. As mentioned before, the most common culprit is high temperature. Even for a short period of time, leaving your phone charging in direct sunlight, in a car or under a pillow can push temperatures into unsafe zones.

Heavy use while charging, like gaming or 4K video editing, can also cause temperature spikes that degrade the battery faster. And cheap, uncertified cables or adapters may deliver unstable current that stresses cells. If your battery is already several years old, it’s naturally more sensitive to this kind of strain.

How to charge smarter

You don’t need to overhaul your habits but a few tweaks can help your battery age gracefully.

Start by turning on your phone’s built-in optimization tools: Optimized Battery Charging on iPhones, Battery Protect on Samsung devices and Adaptive Charging on Google Pixels. These systems learn your routine and adjust charging speed so your phone isn’t sitting at 100% all night.

Keep your phone cool while charging. According to Apple, phone batteries perform best between 62 and 72 degrees Fahrenheit (16 to 22 degrees Celsius). If your phone feels hot, remove its case or move it to a better-ventilated or shaded spot. Avoid tossing it under a pillow or too close to other electronics, like your laptop, and skip wireless chargers that trap heat overnight.

Use quality chargers and cables from your phone’s manufacturer or trusted brands. Those cheap «fast-charge» kits you find online often deliver inconsistent current, which can cause long-term issues.

Finally, don’t obsess over topping off. It’s perfectly fine to plug in your phone during the day for short bursts. Lithium-ion batteries actually prefer frequent, shallow charges rather than deep, full cycles. You don’t need to keep it between 20% and 80% all the time, but just avoid extremes when possible.

The bottom line

Keeping your phone plugged in overnight or on your desk all day won’t destroy its battery. That’s a leftover myth from a different era of tech. Modern phones are smart enough to protect themselves, and features like Optimized Battery Charging or Battery Protect do most of the heavy lifting for you.

Still, no battery lasts forever. The best way to slow the inevitable is to manage heat, use quality chargers and let your phone’s software do its job. Think of it less as «babying» your battery and more as charging with intention. A few mindful habits today can keep your phone running strong for years.

Technologies

Magic Cue Might Be Pixel 10’s Most Helpful Feature. Here’s How To Use It.

With AI, Magic Cue can instantly pull up flight information, reservation details and photos in calls and texts, so you don’t have to dig for them.

You might be sick of hearing about all the AI features loaded on your phone. But if you have a Pixel 10, there’s one key capability that may be worth tapping into.

Magic Cue is one of Google’s latest AI flexes. It can surface information related to what’s on your phone’s screen, so you don’t have to dig for it yourself. For example, if you’re calling your airline, Magic Cue will automatically show your upcoming flight information on the call screen. Or if your friend texts to ask about what time dinner is, those details will appear within Messages without you having to look for them.

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The Pixel 10 series is loaded with other impressive AI features, like a Voice Translate feature that can mimic the sound of a caller’s voice while translating what they’re saying. AI can also sharpen your zoomed-in photos and help you take better pictures with Camera Coach. And Circle to Search remains one of my favorite mobile tools. But Magic Cue is one of the few capabilities that succinctly delivers on the promise of AI to simplify tasks and act as a helpful mobile assistant.

Like many AI features, Magic Cue can be hit-or-miss, and in many ways it’s still finding its footing. But it stands out as one of the more practical and helpful AI features you can use on the Pixel 10, 10 Pro, 10 Pro XL and 10 Pro Fold.

Which devices can use Magic Cue?

Only Google Pixel 10 phones can tap into Magic Cue. It’s powered by the Google Tensor G5 chip and the latest version of the Gemini Nano AI model. So if you have an older Pixel phone or a different Android phone, this won’t be available to you.

How to use Magic Cue

To use Magic Cue, you’ll first need to allow access to the capability in your Pixel 10’s settings.

When you open Settings, you’ll see Magic Cue listed near the bottom. Tap that and hit the toggles to allow suggestions and information to pop up based on what’s on your screen.

You’ll also see an option to choose which specific apps you want Magic Cue to pull data from, like Gmail, Messages and Calendar. That way if you have a flight reservation in your email or a dinner blocked off in your calendar, Magic Cue can surface that information when it relates to a conversation on your screen. Google’s support page for Magic Cue also notes that suggestions can show up on «select third-party messaging apps,» though I personally haven’t seen it appear in WhatsApp just yet, for example.

Within Magic Cue’s settings, you’ll also see whether an update is needed for the feature to work properly. Under the Magic Cue updates tab, it should say «Up to date.»

You’ll be able to use Magic Cue 24 hours after you set it up on your Pixel 10. It may take some time for it to process data across your apps and show relevant suggestions, but it’ll get better at providing information and actions as you continue to use your phone.

Magic Cue processes everything on-device, so you shouldn’t worry about your personal information being compromised.

How Magic Cue works

Once Magic Cue is enabled, it’ll suggest actions and surface information related to what you’re doing on your Pixel.

For instance, if you’re calling an airline, your flight details, including departure and arrival time and confirmation number, will appear on the call screen. That way, when a customer service agent asks for those details, you’ll have them readily available.

Similarly, if a friend texts to ask when your flight lands, those details will pop up automatically within Messages, and you can just tap to send. Or if someone asks where you’re having dinner tonight, Magic Cue can find that information from your calendar so you don’t have to drop it in yourself.

Magic Cue also works with Google Photos, so if someone asks for a picture of someone or something, you can tap the Share Photos button that pops up in Messages and select which suggested image is the right fit.

In my experience, Magic Cue has been helpful but not perfect. It does a good job of showing flight or reservation information from my email or calendar. But there are also times it’ll just say «View calendar» when someone asks what time something is happening. In those instances, Magic Cue isn’t really saving me any time or effort, since I can easily swipe to my calendar myself. But I have hope it’ll get better with time and more consistently feel like a magic trick.