An optical illusion is a visual phenomenon where the brain misinterprets what the eyes perceive, creating a false or ...

We're living through one of the strangest inversions in software engineering history. For decades, the goal was determinism; building systems that behave the same way every time. Now we're layering ...

Spot the hidden Lady Face among squirrels in this stunning optical illusion. Test your IQ, vision, and observation skills ...

Blending ‘old-fashioned’ logic systems with the neural networks that power large language models is one of the hottest trends ...

An optical illusion is a puzzle in which the image in front of you possesses a different perception. These illusions are ...

November 24, 2025 • Our annual reading guide returns with 380+ new titles handpicked by NPR staff and trusted critics. Find 13 years of recommendations all in one place — that's more than 4,000 great ...