AI scientists are producing new theories of how the brain learns

Five decades of research into artificial neural networks have earned Geoffrey Hinton the moniker of the Godfather of 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.