@GottaLaff The xylene is almost a technicality when you consider the risks to patients if the company goes belly up after the implants are in place and there’s no one to look after the hardware and software. This is a a well-founded concern from previous such companies. You have to trust Mr M and his investors a lot to be confident that you won’t be left with a bunch of useless wire in your head and your original neurological problem….