A recent tweet by an Australian amyotrophic lateral sclerosis (ALS) patient using an implantable brain computer interface called Stentrode is said to be the first time a message has been posted on social media with the help of such technology. By using this brain computer interface, developed by Synchron, 62-year-old Philip O’Keefe turned his direct thought into text with this post: “hello, world! Short tweet. Monumental progress.” In what Synchron called an “important moment,” O’Keefe…

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