There was a long time ago when the first brain signal was recorded. Since then science has shown multiple ways to record brain activity in realtime. Somehow the public was shocked when Neuralink has demonstrated this last week. Probably because of Elon Musk the co-founder of Neuralink. Media follows Elon Musk's every step and big announcements. Proving that the implants work was a big step for Neuralink, although the technique was a long time ago described.