Scotty: How thick would a piece of your Plexiglass need to be at sixty feet by ten feet to withstand the pressure of eighteen thousand cubic feet of water?
Dr. Nichols: Oh, that's easy - six inches. We carry stuff that big in stock.
Scotty: I noticed. Now suppose - just suppose - I were to show you a way to manufacture a wall that would do the same job but be only one inch thick? Would that be worth something to you, eh?
Dr. Nichols: You're joking!
-- Star Trek IV: The Voyage Home
Say a character in one of your games is going to do something offscreen, or perform some complex task that could have a number of possible interesting results. Or maybe the player just missed a session and you want to find out what happened to them. What do you do? You could spend a bunch of time having them make rolls and play out solo scenes, but that's boring for the other players and not very creative.
Now suppose - just suppose - I were to show you a technique that would give you all the benefits of playing out a montage or flashback scene but require only one roll?
Would that be worth something to you, eh?