Something that confuses me about Red Dwarf is the fact that no one is ever surprised to see Lister. The premise is that he's three million years in the future and may or may not be the last human, and he doesn't know if Earth/humanity still exists. But none of the GELFS/Holograms/Simulants ever seem surprised to see him. I've never heard anyone comment "wow, it's a human, we thought you were extict, I haven't seen a human in three million years" etc. Nor have I ever heard Lister ask the GELFS/Holograms/Simulants if humans still exist or when they last saw Earth. For example in Holoship, my first thought was the Earth and humans must still exist if they're sending holoships out. But of course, we don't know how long that ship has been out there or if they're in contact with Earth. Because no one asks. Everyone acts like it's no big deal that a human has turned up. Similarly, the Simulants hate humans. The fact that they hate humans suggests to me that humans must still exist.