FWIW, I agree with the more skeptical comments... it's probably a hearing aid, or ice pack, or perhaps a heated stone. But that doesn't mean it's not a time tra

FWIW, I agree with the more skeptical comments... it's probably a hearing aid, or ice pack, or perhaps a heated stone. But that doesn't mean it's not a time traveler -- after all, common side-effects of frequent time travel include headaches, acute tinnitis, and loss of autonomic thermoregulation of the head and neck area.