AlterEgo Listens to the Voices in Your Head

24-year-old inventor Arnav Kapur’s wearable device AlterEgo, which we previewed during this year’s Ted Fellows announcement, aims to assist people with communication problems by reading the voices in their head. According to Smithsonian Magazine, the technology does so through “a system of sensors that detects the minuscule neuromuscular signals sent by the brain to the vocal cords and muscles of the throat and tongue.” These work even if we make no sound—if we simply think about talking. AlterEgo’s AI then translates the signals into words and lets the user listen. Read more about Kapur, AlterEgo, and its ability to extend our cognition at Smithsonian Magazine.