So, Elon has developed the Neuralink implant chip and states, recently, that someone with the chip can now control a computer mouse by thinking.
Info on neuralink:
Neuralink
I have an idea - an implantable glucose monitor. They already use blue tooth, but changing out the devices can be painful. If there was an injectable implant that would last a lot longer, wouldn't that be cool? Fewer device stabs.
On a totally different note, if someone can control a mouse with the implant, then what is going to stop the government from controlling you with it?