Prof Nita Farahany: 'We need a new human right to cognitive liberty'

Our brainwave activity can be monitored and modified by neurotechnology. Devices with electrodes placed on the head can record neural signals from the brain and apply low electric current to modulate them. These "wearables" are finding traction not only with consumers who want to track and improve their mental wellness but with companies, governments and militaries for all sorts of other uses. Meanwhile, firms such as Elon Musk's Neuralink are working on next-generation brain implants that could do the same thing, only with far greater power. While the initial use may be to help people with paralysis to type, the…