Nearly 30 years ago, in 1995, the USS Voyager’s chief medical officer was slain, so a backup was brought online in the form of a sentient AI hologram, formally known as the EMH — emergency medical hologram. But because the ship was stranded on the far end of the galaxy in the very first episode of Star Trek: Voyager, the EMH, later just known as “the Doctor,” became the full-time physician for the crew, despite being an AI that merely projected a physical body.
