Bradford Smith, a father with ALS, received a Neuralink brain implant and can now complete tasks such as typing on his computer using only his mind despite his neurological condition.

Smith said in a viral social media video produced with the brain implant that ALS “kills the motor neurons that control my muscles” but does not impact his mind, a condition he discovered “starting with a shoulder injury that would not heal and ending up with my current status.”

But he became the third person in the world to receive a Neuralink brain implant and the first to use the implant in order to speak. Smith said that he made the viral video with the implant and his Macbook, narrating the video with recordings of his old voice cloned by artificial intelligence.

Neuralink said in a blog post two months ago that Smith formerly relied on an eye tracker to type letters as “his only means of communicating,” meaning that he was often “confined to staying indoors in darkness with the window blinds drawn” due to the sensitivity of the technology.

The new brain implant has meanwhile enabled him to “venture outside his home” more often and spend more time with his family, as well as communicate with them more effectively.

The use case for Neuralink came as the technology company, which was founded by Elon Musk, filed trademark applications for the terms Telepathy and Telekinesis. The trademark application filed for Telepathy described that the product would be “an implantable brain to computer interface for facilitating communication and control of software and hardware.”

Neuralink has focused on developing technology to aid paralyzed or disabled people, but the Telepathy system could allow for communication between two people with Neuralink implants in their brains. Musk said eight years ago that the company wanted to create such technology.