In the video game "Rimworld", humans explore space using sub-light spacecraft piloted by AI carrying people frozen in cryosleep. A trip to a different star may

In the video game "Rimworld", humans explore space using sub-light spacecraft piloted by AI carrying people frozen in cryosleep. A trip to a different star may take thousands of years, and you don't necessarily know where you'll end up. Of course the idea has been explored in many sci-fi stories. (If someone knows which was the first, it would be interesting to know) Such technology always seemed much more reasonable than warp drive or other similar science fiction. I can believe that in a few centuries we have figured out how to revive a person from cryostasis.