Neuralink, owned by controversial billionaire Elon Musk, believes it can prevent thread movement in the next patient by simply implanting the fine wires deeper into brain tissue. The company is planning on—and the FDA has reportedly signed off on—implanting the threads 8 millimeters into the brain of the second trial participant rather than the 3 mm to 5 mm depth used in Arbaugh's implantation.
Yeah, "just shove it in deeper" sounds like a brilliant plan.
Maybe it'll work, maybe it won't, but if I was that second patient I wouldn't exactly be feeling super confident about their approach.