Altman teases an AI renaissance, not a revolution

The surprising battery discovery that could make our tech more sustainable, and more
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April 22, 2025
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Artificial intelligence
We're in an AI renaissance – not a revolution
OpenAI chief Sam Altman (Jamesonwu1972 / Shutterstock)
OpenAI's Sam Altman says we're in an AI renaissance, rather than a revolution, which points to a shift in the way we see the world, rather than big advances in the tech itself.
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Sustainable Tech
Extreme heat could restore lithium-ion batteries
Reusable lithium-ion batteries would be a sustainable breakthrough (Apple)
The lithium-ion batteries that power most of our gadgets inevitably degrade over time, but researchers may have now found a novel way to make old batteries good as new again.
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Cameras
Insta360 unveils its new 360-degree camera
The Insta360 X5 has been unveiled (Insta360)
Meet the new Insta360 X5, which brings with it some substantial upgrades over the Insta360 X4, while giving the likes of DJI and GoPro some serious competition.
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Today's best deals, hand-picked by TechRadar's experts
Entertainment
Here's our review of Andor's 12-episode season 2 run
Diego Luna is back on our screens (Lucasfilm / Disney+)
Our Senior Entertainment Reporter Tom Power has seen all 12 episodes of Andor season 2, and in his spoiler-free review he says it's "a devastating near-masterpiece".
Read the review
Phones
The iPhone might be the next Apple device to go blue
Could we get a new iPhone color this year? (Future)
The new pale blue color introduced with the M4 MacBook Air has attracted a lot of attention since its launch, and the iPhone 17 is rumored to be adopting a similar shade.
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