This baby with a head camera helped teach an AI how kids learn language

For this experiment, the researchers relied on 61 hours of video from a helmet camera worn by a child who lives near Adelaide, Australia. That child, Sam, wore the camera off and on for one and a half years, from the time he was six months old until a little after his second birthday. The camera captured the things Sam looked at and paid attention to during about 1% of his waking hours. It recorded Sam's two cats, his parents, his crib and toys, his house, his meals, and much more. "This data set was totally unique," Lake says.