At first I really enjoyed the "No Aliens" rule. People assume a spaceship programme is going to be full of aliens, and Red Dwarf wasn't like that. It was more about this lonely, existential drift through space where the plot was very character-driven, with the antagonists being mind-warping astrophysics and imaginative technology. "Waiting for God" is one of my favourite episodes, where Rimmer thinks they've made contact with aliens, but it turns out to be Red Dwarf's rubbish bin. But obviously the writers couldn't sustain that and increasingly came to bend their rule. While there are no "aliens" per se, the universe is teeming with life-forms that humans created: Kinitawowis, Pleasure GELFs, BEGGs, Holograms, Simulants, Rogue Simulants, Psirens, Emohawks, Despair Squids, Polymorphs, Rogue Droids, Pan-Dimensional Liquid Beasts from the Mogadon Cluster, Vidal Beasts of Sharmutt II. These function as aliens for all intents and purposes, although one of the characters always points out to the viewer that the bug-eyed monster trying to eat their brain was genetically engineered on Earth, just in case we think it's an alien! Do you think they should have just bitten the bullet and allowed "aliens", or does the fact that they're not technically aliens add something to the narrative? What are all these human-created creatures doing so far out in deep space? Did humans put them there? Were the individual GELFs made by humans, meaning GELFs are more or less immortal or that humans existed until very recently, or have GELFs been breeding on their own? In Emohawk, Lister is engaged to the Kinitawowi chief's daughter. So the Kinitawowi sound like they're not genetically engineered as individuals anymore, but rather have been breeding on their own for up to three million years. But in Entangled, the BEGG chief says he personally ate someone from an English boarding school. This means that depending on when/if humans became extinct, BEGGs must be extremely long-lived or even immortal for him to have eaten someone from an English boarding school up to three million years ago. Or it means that someone from an English boarding school still existed until relatively recently. I suppose they could both be true, that they can reproduce on their own and they're ageless. Or maybe Kinitawowi reproduce and BEGGs are immortal, although Kinitawowi and BEGGs look closely related.