Researchers have taken issue with billionaire Elon Musk’s claim that his brain implant technology could one day offer patients vision beyond that of normal human sight.
Elon Musk has long touted that his Neuralink company is developing implants capable of restoring sight to the blind, even announcing on X in March that the technology, named “Blindsight,” is already operational in monkeys. Musk suggested that while initial resolution might be comparable to early Nintendo graphics, the technology could eventually surpass normal human vision.
However, Ione Fine, a psychology professor at the University of Washington, has criticized this claim as “dangerous.” Fine, who co-authored a paper published in Scientific Reports on Monday, used “virtual patients” to model the potential functionality of such implants. The paper argues that new implants, including Musk’s, are likely to be constrained by human biology.
Fine pointed out that Musk’s concept is based on a flawed assumption that high-resolution vision can be achieved by implanting millions of tiny electrodes into the visual cortex, the part of the brain responsible for processing visual information. She explained that while engineers might think of electrodes as creating pixels, biology doesn’t work that way. Effective vision requires not just stimulating individual cells but also generating a “neural code” that involves firing across thousands of cells.
According to Fine, scientists are far from understanding the correct neural code for a blind person, limiting the effectiveness of such implants. She also noted that while blindness itself does not make individuals vulnerable, becoming blind later in life can. Fine concluded that Musk’s statements about surpassing human vision are therefore “dangerous.”