Board Thread:Questions and Answers/@comment-25238020-20160125174732/@comment-31541346-20170310023507

There is no rescue, as proven by the rocket ship you must build. Unless there is an alternate ending where you go on with a rescue team, this PDA means that you must stay prepared to leave. You should never get too comfortable.

A similar meaning is implied when crafting the builder (Or crafting a base for the first time, I forgot) when it says "Treat this place as your home, but always remember that it is not."