Having a blorby committed prep allows you to use, uh, let’s call it“diegetical mechanics”. Symbolic mechanics are the mechanics we allknow and love like “Roll 15 or higher on a d20”, “You get 40 xp” etc.
Diegetic mechanics are things that are all about the characters action in the game world. The DM has access to notes that say things like:“If they pull the left lever, there will be cake. If they pull theright lever, they will die.” “Annie does not want to talk about Sarah.”“The cursed figurine is hidden under the t-shirts in the bedroom drawer.”
I’m not slagging games like Spirit of the Century that were made to be more “pick-up” and you don’t have to prep them because instead of the DM having written down where the figurine is, the players can make rolls to see if their characters find the figurine or not. That’s all fine. For them. This is blorb.