Should a dragon be 'as big as a double decker bus'? Should a description of the Temple of Slangg draw directly on the players' and referee's knowledge of what the real Catal Huyuk or the Parthenon? Or even on shared knowledge of other fictional worlds? Does rely on these descriptive shorthands break immersion (well, yes, they probably do), or does describing the world is such terms aid agency by giving players the solid foundations upon which to base decisions?
Referees: How much of the real world intrudes on the descriptions of the world that you provide to the players?
Players: How much of the real world should be present in the descriptions provided by the referee?
"You're waiting in the rain for ages, and then four dragons appear at once. Unfortunately, you don't have the correct change... Your adventure ends here."