> His brain must've repurposed most of those visual processing neurons for audio. Maybe! Blind people's visual cortices do light up a lot more than you might t

> His brain must've repurposed most of those visual processing neurons for audio. Maybe! Blind people's visual cortices do light up a lot more than you might think, apparently. Some blind people even experience visual synesthesia. But I think a big part of it is just ordinary practice. My mom is in the process of learning screenreaders on her iPhone and Windows PC right now, and she's still working her way up to speeds like that. It takes a lot of time to reach that level.