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A day when people can interact directly with computers using their thoughts could be on the horizon. Several companies, including Elon Musk\u2019s Neuralink, have begun preliminary human trials of brain-computer interfaces - devices that decode the electrical signals in their brain and translate them into digital bits. Neurosurgeon Benjamin Rapoport is a co-founder and chief science officer of Precision Neuroscience, a company working on brain-computer interfaces. He spoke with WSJ\u2019s Danny Lewis about how the technology works and how these implants could improve the lives of hundreds of thousands of people who could gain the ability to independently engage with the digital world.\n\n\n\nCorrection: Dr. Benjamin Rapoport is the co-founder of Precision Neuroscience. An earlier version misspelled his name Rapaport. (Corrected on May 3)\n\n\n\nWhat do you think about the show? Let us know on Apple Podcasts or Spotify, or email us: FOEPodcast@wsj.com\xa0\n\n\n\nFurther reading: \n\nInside the Operating Room: Doctors Test a Revolutionary Brain-Computer Implant\xa0\n\nElon Musk\u2019s Neuralink Wants to Make \u2018The Matrix\u2019 a Reality. It Has a Lot to Prove First.\xa0\n\nShe Didn\u2019t Speak for 18 Years. A Computer Helped Find Her Voice.\xa0\n\nThe Devices That Will Read Your Brain\u2014and Enhance It\xa0\n\n\n\nLearn more about your ad choices. Visit megaphone.fm/adchoices