Tech Life
Tech Life

Tech Life's look back at 2025

A selection of our favourite stories in 2025. From bringing back extinct species to AI at a royal palace. And you tell us about the tech that's made a difference to your life. Presenter: Chris Vallance Producers: Tom Quinn and Imran Rahman-Jones (Image: A young woman sits at a desk. A laptop co

Featured Speakers

BBC World Service HostBen Lamm GuestFei-Fei Li GuestBill Reddy Guest

Topics Discussed

Episode Summary

Executive Summary: This year-end BBC Tech Life roundup revisits standout stories on de-extinction, AI in education and translation, social media safety, listener tech habits, and conservation tech. Across interviews and field reports, the episode highlights how AI is accelerating both ambitious science and everyday convenience, while raising ethical questions about species restoration, child safety online, and the human impact on nature.

Main Topics: De-extinction and species preservation: Ben Lamm of Colossal Biosciences explains plans to revive mammoths, Tasmanian tigers, and dodos using reconstructed DNA, while stressing safeguards against human use of the technology. AI frontiers and spatial intelligence: Fei-Fei Li discusses the next major AI milestone as spatial intelligence, emphasizing its potential for vision, navigation, creativity, robotics, design, and architecture. Real-time AI language translation: Google’s Pixel 10 live call translation feature is tested in a real phone call, showing promise but also imperfect accuracy compared with polished demos. AI in education and personalized learning: Alpha School in the US uses AI-powered apps for most academic learning, with human guides focusing on motivation and emotional support instead of traditional teaching. Social media safety and youth protection: Pinterest CEO Bill Reddy describes stricter privacy defaults for under-16s and under-18s as a deliberate tradeoff to create a safer platform for young users. Listener tech that changes daily life: Audience messages highlight practical and personal technologies such as continuous glucose monitors, AI tools, ad blockers, translation features, TikTok, and retro gaming hardware. Tech ecosystems in the Global South and conservation AI: Reports from Nigeria’s Computer Village and dolphin-language research in the Bahamas show how tech intersects with local economies, infrastructure challenges, and animal communication research.

Key Arguments: De-extinction is being pursued as both a scientific challenge and a conservation tool, not as a human genetic editing program. Colossal argues it will use new technologies to restore lost biodiversity and support conservation broadly, while ring-fencing human applications into separate governance structures. AI’s next breakthrough may be spatial intelligence, the ability to perceive and interact with the physical world, which could transform robotics and design. AI translation is useful in real life, but live tests still reveal errors and rough edges that demos can hide. AI-enabled education can personalize pacing and content, but it replaces traditional teachers with guides and assumes software can handle core instruction. Safer platform design for children may reduce some social features, but it can still improve business outcomes by attracting younger users seeking healthier alternatives. Listener experiences suggest that the most valuable tech is often practical, health-related, or simplifying everyday tasks rather than flashy or futuristic. Research tools like Dolphin Gemma may help determine whether dolphins have language, potentially changing how humans understand and protect other species.

Data Points: Mammoth calves timeline: Late 2028 - Colossal says it is on track for its first mammoth calves by then. Tasmanian tiger timeline: 6 to 7 years - Ben Lamm says the thylacine project could produce an animal on that timescale. Time since thylacine project launch: 2 years - Colossal says it is about two years into the Tasmanian tiger effort. Schedule acceleration: 1.5 to 2 years ahead - Lamm says the thylacine project is ahead of the original 10-year estimate. Languages supported by Google live translation: 10 other languages - Pixel 10 call translation can translate English plus 10 additional languages. AI award recipients: 7 pioneers - King Charles III presented engineering awards to seven AI pioneers. Under-16 account setting at Pinterest: Private only - Pinterest made accounts private by default for users under 16. Under-18 account setting at Pinterest: Private by default - Pinterest made accounts private by default for users under 18. Pinterest stock reaction: Dropped over 20% - Reddy says the stock initially fell after the youth-safety changes. Pinterest user growth: Nearly doubled a year later - Reddy says the platform later grew strongly after the safety changes. Gen Z share on Pinterest: More than half - Reddy says Gen Z now makes up over half the platform. Alpha School learning block: 2 to 3 hours - A student describes the daily AI-learning block length. Focus interval method: 27 minutes on, 5 minutes off - Alpha School uses the Pomodoro method in its learning blocks.

Pivotal Quotes: "We're the world's first de-extinction and species preservation company." — Ben Lamm: He describes Colossal Biosciences’ mission and framing for its work. "The next frontier of AI is spatial intelligence." — Fei-Fei Li: She identifies what she sees as the next major AI capability. "It just makes sense when you say it out loud that it's not safe for strangers to be able to contact children online." — Bill Reddy: He explains Pinterest’s stricter safety defaults for younger users.

Implications: The episode suggests AI is moving from novelty to infrastructure, reshaping science, communication, and education while forcing sharper ethical choices. It also shows listeners value tech that is useful, protective, and human-centered, not just advanced.

From the Episode

You're sometimes referred to as a godmother. Do you like that phrase? Natural instinct of mine. I would not call myself godmother of anything. But when people started calling me that, I don't remember, a couple of years ago, three years ago, I had to pause and recognize if I rejected this, it would miss an opportunity for women, scientists, and technologists to be recognized this way because. Men are pretty easily called godfathers or founding fathers. What do you think is the next milestone for AI? Well, for me, the next frontier of AI is spatial intelligence. If you look at how animals evolved and how humans developed, the ability to see, to understand the visual world, to navigate, to interact with it, and also to create similar worlds. World is innately important and native to animals and humans. And if we can use AI to unlock this capability, it can superpower humans in many ways, including creativity, robotic learning, design, and architecture. I think spatial intelligence is going to play a huge role or central role in bringing these the next.

Fei-Fei Li · at 6:11

Social media platforms, there are questions over the safety of young people. So, Shona asked Bill Reddy to talk about how his platform dealt with that. As a tech CEO and as a dad, I looked at what was happening across social media platforms with random strangers able to contact young teenagers online. And it just makes sense when you say it out loud that it's not safe for strangers to be able to contact children online. Most people said, well, of course not. But somehow social media has conditioned us to accept that that's okay. And so at Pinterest, I made accounts private only for under 16, private by default for under 18. And what that really means is that it's not a feature you can turn on and off. We just said full stop, we're basically turning off the social features for users under 16. And while our stock dropped over 20% when we did that, a year later, we had nearly doubled, and Gen Z is now more than half our platform.

Bill Reddy · at 19:12
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About Tech Life

Tech Life discovers and explains the ways technology is changing our lives, wherever we are in the world. We meet the people with bright ideas for rethinking the way we work, learn and play, and get hands-on with the products they dream up. We hold tech giants to account for their huge power to affect our lives, and ask who wins, and who loses, in the technology transformation. Tech Life is your guide to a future being made, and remade, at lightning speed in front of our eyes.</p>]]></description><itunes:summary><![CDATA[<p>Tech Life discovers and explains the ways technology is changing our lives, wherever we are in the world. We meet the people with bright ideas for rethinking the way we work, learn and play, and get hands-on with the products they dream up. We hold tech giants to account for their huge power to affect our lives, and ask who wins, and who loses, in the technology transformation. Tech Life is your guide to a future being made, and remade, at lightning speed in front of our eyes.

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