


AI scientists are producing new theories of how the brain learns
The challenge for neuroscientists is how to test them
Five DECADES of research into artificial neural networks have earned Geoffrey Hinton the moniker of the Godfather of artificial intelligence (AI). Work by his group at the University of Toronto laid the foundations for today’s headline-grabbing AI models, including ChatGPT and LaMDA. These can write coherent (if uninspiring) prose, diagnose illnesses from medical scans and navigate self-driving cars. But for Dr Hinton, creating better models was never the end goal. His hope was that by developing artificial neural networks that could learn to solve complex problems, light might be shed on how the brain’s neural networks do the same.
Explore more
This article appeared in the Science & technology section of the print edition under the headline “Great minds”

Why a new art gallery in Bangalore is important for Indian science
It aims to make research and tinkering more accessible to the public

Climate change could reawaken harmful invasive plants
The sooner they can be weeded out, the better

Exposure to the sun’s UV radiation may be good for you
For now, though, keep the sun cream handy
Engineered dust could help make Mars habitable
Restoring water on Mars may be easier than you think
New batteries are stretchable enough to wear against the skin
They take their inspiration from electric eels
Do women make better doctors than men?
Research suggests yes