Three privately held companies are vying to be crowned brain-computer interface (BCI) czar. Synchron (funded by Jeff Bezos and Bill Gates) has implanted BCI devices in several human beings. Their Stentrode was the first BCI device that allowed a person to send a text through thought alone.
Once you research Thiel, you find a familiar story: (yet) a(nother) fascist-adjacent Techbro nutjob angling to be one of the Lords of the convergence. The scary part, of course, is just how close they all are to succeeding.