LLMs contain a LOT of parameters. But what’s a parameter?

MIT Technology Review Explains: Let our writers untangle the complex, messy world of technology to help you understand what’s coming next. You can read more from the series here. I am writing this because one of my editors woke up in the middle of the night and scribbled on a bedside notepad: “What is a…

The man who made India digital isn’t done yet
The man who made India digital isn’t done yet

Nandan Nilekani can’t stop trying to push India into the future. He started nearly 30 years ago, masterminding an ongoing experiment in technological state capacity that started with Aadhaar—the world’s largest digital identity system. Aadhaar means “foundation” in Hindi, and on that bedrock Nilekani and people working with him went on to build a sprawling…

Europe’s drone-filled vision for the future of war
Europe’s drone-filled vision for the future of war

Last spring, 3,000 British soldiers of the 4th Light Brigade, also known as the Black Rats, descended upon the damp forests of Estonia’s eastern territories. They had rushed in from Yorkshire by air, sea, rail, and road. Once there, the Rats joined 14,000 other troops at the front line, dug in, and waited for the…

Why AI predictions are so hard

This story originally appeared in The Algorithm, our weekly newsletter on AI. To get stories like this in your inbox first, sign up here. Sometimes AI feels like a niche topic to write about, but then the holidays happen, and I hear relatives of all ages talking about cases of chatbot-induced psychosis, blaming rising electricity prices…

What’s next for AI in 2026

MIT Technology Review’s What’s Next series looks across industries, trends, and technologies to give you a first look at the future. You can read the rest of them here. In an industry in constant flux, sticking your neck out to predict what’s coming next may seem reckless. (AI bubble? What AI bubble?) But for the…

Job titles of the future: Head-transplant surgeon

The Italian neurosurgeon Sergio Canavero has been preparing for a surgery that might never happen. His idea? Swap a sick person’s head—or perhaps just the brain—onto a younger, healthier body. Canavero caused a stir in 2017 when he announced that a team he advised in China had exchanged heads between two corpses. But he never…

3 things Will Douglas Heaven is into right now
3 things Will Douglas Heaven is into right now

The most amazing drummer on the internet My daughter introduced me to El Estepario Siberiano’s YouTube channel a few months back, and I have been obsessed ever since. The Spanish drummer (real name: Jorge Garrido) posts videos of himself playing supercharged cover versions of popular tracks, hitting his drums with such jaw-dropping speed and technique…

Why inventing new emotions feels so good

Have you ever felt “velvetmist”?  It’s a “complex and subtle emotion that elicits feelings of comfort, serenity, and a gentle sense of floating.” It’s peaceful, but more ephemeral and intangible than contentment. It might be evoked by the sight of a sunset or a moody, low-key album.   If you haven’t ever felt this sensation—or…

The ascent of the AI therapist
The ascent of the AI therapist

We’re in the midst of a global mental-­health crisis. More than a billion people worldwide suffer from a mental-health condition, according to the World Health Organization. The prevalence of anxiety and depression is growing in many demographics, particularly young people, and suicide is claiming hundreds of thousands of lives globally each year. Given the clear…

Bangladesh’s garment-making industry is getting greener
Bangladesh’s garment-making industry is getting greener

Pollution from textile production—dyes, chemicals, and heavy metals like lead and cadmium—is common in the waters of the Buriganga River as it runs through Dhaka, Bangladesh. It’s among many harms posed by a garment sector that was once synonymous with tragedy: In 2013, the eight-story Rana Plaza factory building collapsed, killing 1,134 people and injuring…