California

California is home to some of the nation’s most ambitious climate, housing, and social policy experiments. This archive tracks the progress stories and milestones emerging from the state — from clean energy breakthroughs to community health wins.

Virtual reality or cyberspace concept: digital human or robot head, for article on brain-computer interface

Paralyzed woman able to ‘speak’ through digital avatar in world first

A digital avatar has given a paralyzed woman her voice back — speaking at 78 words per minute, more than five times faster than the eye-tracking system she relied on before. Ann, who had a brainstem stroke 18 years ago, worked with UCSF researchers to train an AI to read brain signals from electrodes resting on her brain’s surface. The avatar speaks in a voice reconstructed from her wedding video, complete with facial expressions like smiles and frowns. There are real limits — the system still misreads words about a quarter of the time — but for millions living with ALS, locked-in syndrome, or severe stroke, this points toward a future where losing a voice no longer means losing a self.