Poor Dave, so lonely, never thought of it that way.
It is a very interesting thing to ponder. Imagine that you are the last human in a (more or less) empty galaxy. Everyone is either dead or gone. There's just you, a doddering old computer, a robot that was designed to clean out the toilets, a self-absorbed and self-centered one-minded creature that evolved from your old pet, and a hologram/simulation of the colossal jerk you used to work with (best described as a vending-machine repairman with a Napoleon complex).
You have food and supplies to last an eternity. Old videos and toys.
But that's it. All that ever would be already happened. It's over. Man was the supreme form of life in the cosmos, and Man died out, likely taking the Earth with him.
In the early episodes we see a lot of Dave playing silly games, having a few laughs at Rimmer, and looking off into space.
In one episode he has to burn books to stay warm and stay alive, and these are the last copies of these books in all existence. He ponders what it means to burn Lolita (although he saves the smuttiest page) and to destroy all that's left of Shakespeare. Rimmer is aghast at Lister for burning Shakespeare, but when Lister asks Rimmer if he's ever actually read it, Rimmer can only remember one word of Shakespeare, and that word was
now.
What do you do with your life? What do you do with eternity?
LISTER: I'm just burning a book!
RIMMER: It's not just a book. It's the only copy of probably the greatest work
in English literature. Probably the only copy left in the entire universe, and
you're quite happy to toss it on the fire to keep your little mitts warm for
fifteen minutes?
LISTER: There's nothing else to burn.
RIMMER: That's it, then, is it? Goodbye Hamlet? Farewell Macbeth? Toodle-pip King Lear?
LISTER: Have you ever read any of it?
RIMMER: I've seen West Side Story. That's based on one of them.
LISTER: Yeah, but have you actually read any?
RIMMER: Not all the way through, no. I can quote some, though.
LISTER: Go on, then.
RIMMER: 'Now...' (Long pause.) That's all I can remember.
LISTER: Where's that from, then?
RIMMER: Richard III, you moron. The speech that he does at the beginning. 'Now...' something something something. It's brilliant writing. It really is. Unforgettable.
LISTER: OK, I'll save it till last. (Holds up another.) Lolita. Is it OK if I burn Lolita?
RIMMER: Save page sixty-one.