Mornington Crescent was a game invented by the BBC and played at the end of a radio game show. Wikipedia has a good description. Since the rules of play were never published, considerable energy in the listening public was devoted to deducing them. To no avail; the game was entirely random and had no rules. It was an improvisation designed to fill however much time remained to the end of the show. But people were for years convinced there was an underlying logic.
Listening to a fashion show my wife likes to watch, I see features of the same process. What is judged good or bad has little logic (at least to my untrained eye) and more to do with the improvisational dynamic of the moment; e.g., I'll generally ridicule it if you both like it or vice versa. The viewing public is left trying to make sense of the noise and impute meaning to randomness.
Almost anything is believable if said with sufficient conviction by those we have collectively (though not unanimously) chosen to regard as authority figures. It's what allows political figures to say the most outrageous things and not be laughed off the stage and into oblivion. In many cases, a pity.
