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A story about self-aware cities, direct democracy, and a steamy romance.

The Prima system lets people with advanced AMD read and do crosswords. Here's how it works.

Age gates can be staggeringly counterproductive, pushing kids to darker corners of the web. Closing loopholes will only make things worse.

Plus: Ukraine says sudden Starlink speed limits disrupted key drone missions.

Upgrades could bring more clean power to the grid, but there's only so much room to grow.

The quest for cognitive immortality continues.

One day human organs could also be banked safely for future transplantation.

Plus: The FBI has arrested an OpenAI engineer accused of snooping.

DARPA is funding a redoubled effort to develop a shelf-stable substitute for what field medics and trauma doctors need most: more blood.

Plus: A cyberattack overheated fridges at hundreds of French supermarkets.