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How Can AI ID a Cat? An Illustrated Guide.

April 30, 2025

Neural networks power today’s AI boom. To understand them, all we need is a map, a cat and a few thousand dimensions.

When ChatGPT Broke an Entire Field: An Oral History

April 30, 2025

Researchers in “natural language processing” tried to tame human language. Then came the transformer.

What the Most Essential Terms in AI Really Mean

April 30, 2025

A simple primer to the 19 most important concepts in artificial intelligence.

AI Is Nothing Like a Brain, and That’s OK

April 30, 2025

The brain’s astounding cellular diversity and networked complexity could show how to make AI better.

The Strange Physics That Gave Birth to AI

April 30, 2025

Modern thinking machines owe their existence to insights from the physics of complex materials.

What’s Going On Inside Io, Jupiter’s Volcanic Moon?

April 25, 2025

Recent flybys of the fiery world refute a leading theory of its inner structure — and reveal how little is understood about geologically active moons.

Q&A

Improving Deep Learning With a Little Help From Physics

April 23, 2025

Rose Yu has a plan for how to make AI better, faster and smarter — and it’s already yielding results.

How a Biofilm’s Strange Shape Emerges From Cellular Geometry

April 21, 2025

Micro decisions can have macro consequences. A soft matter physicist reveals how interactions within simple cellular collectives can lead to emergent physical traits.

New Proof Settles Decades-Old Bet About Connected Networks

April 18, 2025

According to mathematical legend, Peter Sarnak and Noga Alon made a bet about optimal graphs in the late 1980s. They’ve now both been proved wrong.

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