There's research that suggests that physical pain is closely related to (if not identical to) emotional pain. If such implants will be able to eradicate physic

There's research that suggests that physical pain is closely related to (if not identical to) emotional pain. If such implants will be able to eradicate physical pain in humans (so far it's only been tested on rats), will it also eradicate emotional pain? Ethical questions immediately crop up, since it's possible that experience of pain in oneself is necessary to develop empathy for others, and without empathy you could get sociopathy or at least less compunction against hurting or killing others. The military would probably love this.