Realistic worldbuilding is a difficult art: unable to model what someone else would do except by the ["empathic inference"](https://www.lesswrong.com/posts/9fpWoXpNv83BAHJdc/the-comedy-of-behaviorism) of imagining oneself in that position, authors tend to embarrass themselves writing [alleged aliens or AIs that _just happen_ act like humans](https://www.lesswrong.com/posts/Zkzzjg3h7hW5Z36hK/humans-in-funny-suits), or allegedly foreign cultures that _just happen_ to share all of the idiosyncratic taboos of the author's own culture. The manifestations of this can be very subtle, even to authors who know about the trap.
Realistic worldbuilding is a difficult art: unable to model what someone else would do except by the ["empathic inference"](https://www.lesswrong.com/posts/9fpWoXpNv83BAHJdc/the-comedy-of-behaviorism) of imagining oneself in that position, authors tend to embarrass themselves writing [alleged aliens or AIs that _just happen_ act like humans](https://www.lesswrong.com/posts/Zkzzjg3h7hW5Z36hK/humans-in-funny-suits), or allegedly foreign cultures that _just happen_ to share all of the idiosyncratic taboos of the author's own culture. The manifestations of this can be very subtle, even to authors who know about the trap.