I'm the kind of person who reads the source code of software I'm using at least some of the time (and modifies it on occasion), but I'm no genius and not qualified to notice a well-hidden backdoor or potentially fatal software bug - let alone issues with the design, construction or implantation of the hardware. I would never ever trust a brain implant or any device that interfaces directly with my brain.

I'd prefer no implants ever if I can help it. I'd only be fine with one if it saved my life. Otherwise, there are just too many things that can go wrong with it in ways our current technology can't. You can go off-grid now if you get sick of tech, but that becomes infinitely harder if you have a chip in your brain