Contactless payment implants are inevitable

Implanting things on body is a hassle. Body's immune system fights against it. After certain number of years we have to change its battery.

I can imagine people implanting phones or OS but contactless payment implant. A retinal implant.. But we still dont know so much about how our body actually work.

Also its like implanting a chip that controls toilet seat when you want to pee.. Ya you could do it but dude really??