OK guys, I have a theory about Series XI. It's just a theory, I have no insider knowledge and did not attend any tapings, it's just an observation, but it could possibly be a huge spoiler for next season. So read on at your own risk. Einstein has been referenced in EVERY episode of Series XI. That can't just be a mistake, I know they like to reference things in the past, but this goes beyond that. So.... If you remember in Series VII, as the crew were escaping Red Dwarf to find the nanobots, Kryten made reference to an SS Einstein, a ship they wanted to get supplies from. Except, that was in a psychotropically-induced hallucination. So... I think the constant references mean they're in some kind of hallucination/artificial reality/reality bubble throughout the season and possibly the next. It would certain fit the "series-killing spoiler" Naylor was worried about leaking in the press.