Updated: 4 days ago
In science fiction, a generation starship, is a type of ark that transport human colonies to another star system at sub-light speed.
Since long interstellar distance requires decades and centuries to traverse, the original occupants of the ark would live out their natural lives on board, leaving their descendants and subsequent generations to complete the long journey.
Our parable has some familiar features.
To ensure the success and survival of their descendants, the founders of the ship built a compass at the ark's core which could not tampered with.