"Day 29 of the World Cup of Fantasy writing. World building works best when it affects the play. Do not explain the city before it blocks someone. Do not describe a law before it costs someone. Do not introduce a ritual before somebody has to break it. A border, coin, shrine, title, uniform, accent, road, feast, or funeral custom should change the scene. Not sit there looking expensive. Weak world building. The district used old silver coins. Better world building. Her coin hit the counter and every conversation in the shop stopped. If the detail changes nothing, bench it until it can cause trouble."