Elon Musk’s Neuralink Corp. used a brain implant to enable a monkey to see something that wasn’t physically there, according to an engineer, as it moves toward its goal of helping blind people see.

Forbes contributors publish independent expert analyses and insights. Sai writes about healthcare, innovation and technology. Elon Musk’s latest venture: Using Neuralink to help people with vision ...

T here’s a 3D hand on a black screen. J. Galen Buckwalter concentrates on the image, trying to move one of the virtual hand’s fingers — with his mind. For more than 50 years, Buckwalter hasn’t felt ...