Technological power in today’s world is much too concentrated

You don’t have to be a Luddite to have serious misgivings about brain implants. There certainly are beneficial uses, but once brain-computer interfaces become commercially available, we can neither predict nor control what they will end up being used for. There is a risk we will rapidly and thoughtlessly end up changing what it means to be human. With only an indirect interface to the human brain, social media networks have profoundly transformed human society. We are still discovering how pervasive information networks influence human cognition, but we already know enough to be concerned about the impact on rational thinking and collective opinion formation.