Don't get me wrong, there's absolutely zero chance I'd sign up for Elon Musk's shit, but this kind of augmentation is very likely to be cellphone tech levels of disruptive - you'll wake up one day and it's going to be ubiquitous. Nerve interfaces for prosthetics are already becoming commonplace, and cochlear implants even more so. I truly expect that all of this "mystery" is going to be uncovered quite quick once commercial viability is demonstrated.