Sci-Fi story idea: Space Station Of Babel
A semi-psionic field intended to translate the languages of countless cultures wraps around the entire station. The station is multi-generational, with some families having lived there for centuries.
One day, the field fails. Visitors find themselves unable to communicate with other cultures, but the natives are the worst off. All of them speak in gibberish, each and every one speaking some unique, incomprehensible but internally consistent language. The field translated for them, so no matter what they said, they were always understood. The brain, of course, did its best to make sense of the situation, leading to it developing its own kind