MIT Technology Review

This is today's edition of The Download, our weekday newsletter that provides a daily dose of what's going on in the world of technology. Are we there yet? A reality check on six big tech promises Some seemingly impossible feats are too good to give up on. Decoding a pet's yowls and yips? Absolutely. Scrubbing...

Earlier this week, I attended a screening of You Can See Everything, the buzzy new documentary about the disgraced former biotech CEO Elizabeth Holmes. I went in not really knowing what to expect. I'd avoided spoilers (and won't be giving anything away here, either!). I was wondering what new information this film could reveal, given...

The next competitive advantage in enterprise AI has less to do with which model you choose than with what you build around it. That's an important shift. For the past several years, much of the AI conversation has centered on model capability: bigger models, better reasoning, larger context windows, higher benchmark scores. Those advances have...

A scalable AI system requires a strong foundation. Data, engineering, platforms, operating models, and governance must converge to work as one. This session from MIT Technology Review's EmTech Future conference explores what it takes to build that foundation in a highly regulated environment and how a responsible, trustworthy implementation can turn emerging capabilities, including agentic...

This is today's edition of The Download, our weekday newsletter that provides a daily dose of what's going on in the world of technology. How far can we push computing? On a December evening in 1959, the physicist Richard Feynman gave a lecture called There's Plenty of Room at the Bottom." There is no physical...

Enterprise AI can generate recommendations, automate tasks, and help organizations make decisions faster. But without an understanding of how a business actually operates, even powerful models can miss the constraints and relationships that determine whether a decision is the right one. As companies look to move AI from experimentation into everyday operations, the challenge ahead...

How much do you know about permafrost? Maybe, like me, you've been aware that this layer of frozen soil is thawing, that it's important in the global puzzle of climate change ... and that's about the extent of it. The great news for both of us is that my colleague James Temple just published two...

This is today's edition of The Download, our weekday newsletter that provides a daily dose of what's going on in the world of technology. Introducing: the Impossible issue We wanted our last print edition of 2026 to include a slate of stories that check in on impossible ideas. Why? Because it's fun to dream about...

I'd wager everyone has a rehearsed response to what's absolutely one of the world's worst interview questions: What's your biggest weakness?" Whenever I've gotten it, I take a slow-even pensive-breath and rattle off my line: I say no to myself too much." I won't lie. It's a bit shameless-a definite humblebrag. I'm a systems thinker:...

Just before the Artemis II crew began its historic slingshot around the moon this past April, NASA announced plans to build Space Reactor-1 Freedom. SR-1, the first-ever nuclear-reactor-powered interplanetary spacecraft, is meant to fly an uncrewed mission to Mars by the end of 2028, arriving in 2029. A successful mission would herald a new era...

We all know exercise is good for us. It builds muscle, strengthens bones, lowers blood pressure, and boosts mood. By deciphering how movement benefits the body, researchers hope to develop medicines that can offer some of the same perks-without the workout. The idea isn't to replace exercise but to bring its upsides to people who...

Humans are far from the only species with a gift for gab, and our furry, feathered, and finned friends could have a lot to tell us. Decoding how animals communicate with one another could offer a window into the inner lives of other species and help humans realize that animals are sentient creatures who think,...

Scrubbing Earth of per- and polyfluoroalkyl substances-a.k.a. PFAS or forever chemicals-could eliminate a list of woes for people and planet. Used for decades in everything from nonstick pans to firefighting foams, PFAS have been linked to increased risks of fertility challenges, developmental delays, cancer, and reduced immune response. They are known for a strong bond...

Every year, traffic crashes kill more than one million people, and they're the leading cause of death for children and young adults. In the US, 100 people a day lose their lives this way, in many cases not on highways but on rural and local streets. Traffic deaths are a leading cause of preventable death,...

The rise of the lithium-ion battery, which powers everything from the smallest personal electronics to gargantuan energy storage systems, has been nothing short of revolutionary. But as anyone who's boarded a plane in the last decade could tell you, storing and pumping out energy by moving charged lithium ions through a liquid electrolyte soup has...

The average American throws out around 81 pounds of clothing each year, and there are few options for recycling it. MIT engineers hope to cut down on that textile waste with a new type of yarn. The thermoplastic yarn mimics the properties of conventional elastic yarns, which typically combine spandex with polyester or nylon. Those...

A high-fat, low-carbohydrate diet can help some people lose weight, and some research has shown that it may protect against colon cancer. But a new study suggests that such a ketogenic diet may also increase the risk of cancer in the small intestine. This type of diet forces the body to burn fatty acids instead...

Strokes leave 5 million people with long-term impairments each year, and a growing shortage of physical therapists makes it hard for them to get the care they need. A new approach tries to solve that problem by combining artificial intelligence and human therapy. Johannes Lachner, a former MIT postdoc who is now an assistant professor...

These are images of quizzes I took in 3.091, Introduction to Solid-State Chemistry, in the fall of 1980. One is my very first exam at MIT, and getting 49 out of 100 was a soul-crushing experience. I can still picture the TA, Leszek Pawlowicz, PhD '87, returning my paper. He had a big smile on...

In corporate America, Stanley Anderson '79 says, executives often assume that their peers grew up in privileged circumstances. He did not. I spent my early years trying not to get recruited into gangs, getting shot at, watching my friends get murdered, and thinking that if I don't leave, I will die," says Anderson, who was...

Alissa Totman '13 was a sophomore when she joined MIT BrainTrust, a student-run organization that connects Institute undergraduates and people with brain injuries for support and socializing. That group was a great way to learn about the human experience of what people go through when they experience a brain injury," she says. And it laid...

Growing up on a small farm in Nebraska, Megan Donahue '85 discovered the wider world by reading her way through her local library. Today, she is learning how the wider universe works by studying galaxy clusters. Donahue discovered her passion for physics in that library at age 12 and started her path into astronomy thanks...

Tomas Villalon Jr. '14 was raised in San Antonio, Texas, but vividly remembers smog hanging over the city his family came from-Monterrey, Mexico, a steel manufacturing and metal fabrication hub. Even as a child, he realized it was problematic to breathe that air. I'm motivated because I've seen what metal-making does," says Villalon, who majored...

Imagine your company just discovered electricity. At first only a few machines run on it, and nobody worries about efficiency - consumption is low and the value is obvious. But once electricity becomes infrastructure, every process depends on it, and the question changes from can we use it?" to how efficiently are we using it?"...

This is today's edition of The Download, our weekday newsletter that provides a daily dose of what's going on in the world of technology. We were looking at it wrong": The explosive claim that's upended the AI world I think I have good news about the nature of neural networks." With those simple words of...

The current narrative around artificial intelligence in the workplace is largely driven by Silicon Valley. But treating the tech sector as an island misses the actual trends in technology adoption-tech is just the first industry in line. As generative AI and automation tools mature, the shifts currently reshaping software engineering and product management will inevitably...

Andrew Haverdink, a tall grad student in a rain bib and rubber boots, wrenched a double-handed drill from the frozen soil that underlies much of Alaska's Denali National Park and then unclipped the hollow barrel from the end of the bit. He knelt in front of a blue tarp, lined the barrel up with a...

Generative AI models run on powerful chips known as GPUs, which depend on stacks of specialized memory chips packaged with the processor. To meet growing demand for memory, Samsung is building a massive new semiconductor manufacturing complex in Pyeongtaek, South Korea. Three fabs already operate around the clock, and a fourth is coming online. Construction...

In the fall of 2025, Jeff Dodge set up a six-foot folding table in the cafeteria of Cane Bay High School in Summerville, South Carolina, to conduct a taste test. When the first rush of about 150 hungry students hit, he was waiting with slow cookers filled with steaming marinara sauce and meatballs. Kids love...

This story originally appeared in The Algorithm, our weekly newsletter on AI. To get stories like this in your inbox first,sign up here. Until recently, you could divide internet users into just two categories: bots and people. Websites have long allowed bots to perform automated tasks, like capturing the content of web pages, but rules...

I think I have good news about the nature of neural networks." With those simple words of optimism, Nick Cammarata, a researcher at the AI startup Goodfire, kicked off a 26,000-word blog post that has knocked the AI world on its head, sparking wild speculation as well as cautious (and not-so-cautious) celebration. Cammarata's claim is...

This is today's edition of The Download, our weekday newsletter that provides a daily dose of what's going on in the world of technology. Inside the quest to combat Arctic fires and save the planet's frozen carbon -James Temple In July 2021, a wildfire burned through a forest on the University of Alaska, Fairbanks campus,...

In the middle of an especially warm July in 2021, a wildfire ignited in a thick forest of black spruce and peeling paper birch trees on the northern campus of the University of Alaska, Fairbanks. The blaze, possibly sparked by lightning, burned across the dry carpet of feather mosses and lichen before climbing into the...

What do AI agents do if you don't tell them to do anything? The answer looks a lot like play. Researchers repeatedly stranded them alone on a virtual desert island for 30 hours in an experiment reminiscent of the movies Cast Away or Home Alone. The agents-copies of Claude Opus 4.7 nicknamed Eko-were able to...

MIT Technology Review Explains: Let our writers untangle the complex, messy world of science and technology to help you understand what's coming next. You can read more from the series here. On the evening of December 29, 1959, at an American Physical Society meeting at Caltech, the physicist Richard Feynman gave a lecture called There's...

Listen to the session or watch below Can AI design new life forms? In 2025, Stanford University PhD student Samuel King came up with a preliminary answer when he used a generative AI model to propose genetic blueprints for microscopic viruses. It isn't yet an example of AI-generated life, but that could be next. Watch...

This is today's edition of The Download, our weekday newsletter that provides a daily dose of what's going on in the world of technology. Kids are outsmarting social media bans. That's not a problem we need to solve. -Michal Luria, Aliya Bhatia, and Danah Boyd Social media bans are stacking up. In July, France joined...

More than 5 million people around the world have an advanced form of age-related macular degeneration (AMD) called geographic atrophy, in which cells in the retinas die off. And until now, no treatment could restore their vision. The PRIMA system, which was approved in Europe in July and is awaiting FDA clearance in the US,...

I. Meet cute Barnabas and Mainspring grew up near at hand, about an hour apart with good traffic, but for a long time they weren't close. They traded glimpses and occasional hellos and then went about their business. Both of them carried on livelier conversations with farther-flung neighbors, who were richer and had more to...

I don't remember much about Peppy, my first and only pet cat. I can conjure the sensation of stroking her while she purred, recall how she used to get stuck in trees (just like in cartoons!), and chuckle about the time she pooed in my baby sister's cot. That's about it. What I do vividly...

Social media bans are stacking up. In July, France joined Australia in restricting minors from accessing social media-barring children under 15 from major platforms, before the ban was blocked by the country's top court on human rights grounds. The UK aims to forbid kids under 16 from accessing Facebook, TikTok, and other platforms in early...

This is today's edition of The Download, our weekday newsletter that provides a daily dose of what's going on in the world of technology. Pig kidneys that were frozen" for a year have been brought back to life Pig kidneys that were cooled to -150 C and stored in a freezer for months have been...

In this age of rising electricity demand, people are trying to squeeze every last bit of power out of every power plant possible. Over the past few weeks, there's been big news about nuclear power plants trying to do just that. Constellation, the largest nuclear operator in the US, announced plans to add nearly a...

Have you ever thought about what makes you you? Science assures us it has everything to do with the three-pound organ between our ears, with its billions of neurons and trillions of delicate connections. But it's a lot trickier to explain why we have a sense of self-awareness or to pin down precisely where that...

Pig kidneys that were cooled to -150 C and stored in a freezer for months have been successfully rewarmed and shown to work again for the first time, say scientists. They hope to replicate the findings with human organs. The kidneys-which are similar in size to human ones-were left in a glass-like state, in one...

This is today's edition of The Download, our weekday newsletter that provides a daily dose of what's going on in the world of technology. The US military's race to make fake blood In February 2007, a US military helicopter carrying blood to a field hospital was shot down in Iraq, killing all seven crew members....

Its call sign was Morphine 1-2. In February 2007, the hulking dual-rotor casualty evacuation helicopter had just flown three wounded soldiers to a field hospital in Balad, north of Baghdad, when another call came: an emergency mission to fly through an insurgent-controlled area in broad daylight. Typically, helicopters would be in a spot like...

This is today's edition of The Download, our weekday newsletter that provides a daily dose of what's going on in the world of technology. Open models have real benefits. Do they outweigh the risks? Anthropic recently released a report arguing that a powerful new model released by the Chinese company Z.ai, poses a major cyberattack...

MIT Technology Review Explains: Let our writers untangle the complex, messy world of science and technology to help you understand what's coming next. You can read more from the series here. Late last month, Anthropic released a report arguing that the model GLM-5.3 poses a major cyberattack risk. The report's core concern is that the...